We wish to emphasize here that some sources listed in this catalogue are still uncertain. They need to be regarded with caution in view of many further work necessary to be done. Some sources are tentatively classfied as massive X-ray binaries due to their X-ray transience and hard X-ray spectra. No counterpart at other bands has been found or no pulse period has been detected, or both. Also, the compact object in some weak or soft X-ray sources may be a white dwarf instead of a neutron star. If this is the case, they should be excluded from this catalogue.
Finally, we would like to make some remarks on several individual sources. We can't make sure whether these sources belong to HMXBs or not. The following three sources are listed in our catalogue, although some doubt has been reported in the literature on the nature of the high-mass X-ray binary.
1WGA J 0648.0-4419: The weak X-ray source with a pulsation of 13 s was discovered by Israel et al. (1997) from ROSAT PSPC data. They believed that the system contained a hydrogen-depleted subdwarf O6 star and most likely a neutron star. But Bisscheroux et al. (1997) suggested the compact companion is a white dwarf star instead of a neutron star, mainly due to the ultrasoft spectrum of the X-ray source and the very close resemblance of the X-ray spectrum and luminosity with that of the soft intermediate polars.
1E 1024.0-5732: The source was discovered with Einstein Observatory. Caraveo et al. (1989) suggested that a highly reddened O5 star was the most likely optical counterpart, and therefore proposed the system was a HMXB. The source was listed in the previous catalogue. New optical and X-ray data, however, favour that the system contains a Wolf-Rayet star and an O-type star (Mereghetti et al. 1994; Reig 1999). The origin of the X-rays from this source is explained by the colliding wind binary model (Reig 1999).
1E 1048.1-5937: Although the source was listed in van Paradijs's catalogue, the system can not be confirmed to be a HMXB or a LMXB. The compact star belongs to the "anomalous" X-ray pulsars, which are thought now to be related to the magnetars. Mereghetti et al. (1998) argued that if it has a companion this star must be either a white dwarf or a helium burning star instead of a main-sequence companion.
The following two sources are not listed in our catalogue, although some authors argued that the sources are Be/X-ray binaries. GRS 1915+105: The source was listed in van Paradijs' catalogue of low-mass X-ray binaries (LMXBs). Its compact is well accepted as a black hole candidate. Mirabel et al. (1997) argued the system was a Be/X-ray binary according to its K-band infrared spectra. On the other hand, most characteristics are consistent with a LMXB. Therefore, we prefer to consider the source to be a LMXB as before.
1WGA J
1958.2+3232: Israel et al. (1998) discovered
12 min X-ray pulsations in this source.
Further spectral observations of the optical counterpart made Israel et al. (1999b) conclude that the
X-ray source is a likely new accreting neutron star in a Be/X binary system. Negueruela et al. (2000),
however, found the optical spectrum is dominated by emission lines from an accretion disk and argued that
the observed X-ray and the optical characteristics are consistent with the object being an intermediate
polar.
PSR B1259-63/SS 2883 is also not listed in our catalogue. The source was discovered by Johnston et al.
(1992a) to be a radio pulsar in a highly eccentric orbit around the massive star SS 2883 (Johnston et al.
1992b), with an eccentricity of 0.869. The pulsar rotation period is 47.76 ms and the orbital period is
1236.79 days. X-ray observations with ROSAT, ASCA and CGRO (Cominsky et al. 1994; Greiner et al.
1995;
Kaspi et al. 1995; Grove et al. 1995; Tavani et al. 1996) showed X-ray luminosity of
1033-1034, assuming a distance of 2 kpc. No X-ray pulsation was detected. Optical observations
of SS 2883 exhibited strong H-Balmer emissions and the star is of spectral type of about B2e, indicating
its mass to be 10 and its radius 6
(Johnston et al. 1994). The system is the only known
binary where a radio pulsar is observed to interact with gaseous material from a Be star. It may be the
evolutionary missing link connecting the radio pulsars to the X-ray emitting Be binaries (for recent
simple review, see Tavani & Arons 1997).
Note added in proof: While the paper was under referee, Haberl F. and Sasaki M. (2000, A&A 359, 573) reported that there are more than 20 new Be/X-ray binary candidates in the SMC, which are not listed in our catalogue.
Acknowledgements
QZL acknowledges the financial support from K.C. Wong fellowship of Chinese Academy of Sciences. This work is partially supported by The Netherlands Organization for Scientific Research (NWO) through Spinoza Grant 08-0 to E.P.J. van den Heuvel and by the National Project for Fundamental Research by the Ministry of Science and Technology of China (973 Project).
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
J 0032.9-7348 | 00 32 56.1 | *1 | 15.3, - -, - - | 0.2 | ||
-73 48 19 | Be, - - | |||||
R | x 12.9
![]() |
304.7, -43.2 | [657] | [354] | [354] | |
Pos.: [255]; in SMC: [354]; very strong emission lines: [657]; another early-type star within error circle: [657]. | ||||||
J0049-732 | P | 00 49 29.6 | 0.04 | |||
-73 10 56 | 9.1321 | |||||
As | x 5.5
![]() |
303.1, -43.9 | [327] | [327] | ||
Pos.: [255]; in SMC: [327]; likely a Be: [255]. | ||||||
J0049-729 | TP | 00 49 02.5 | Be star | 0.5-9 | ||
J 0049.1-7250 | -72 50 52 | Be, - - | 74.676 | |||
AS, R, X | x 13.7
![]() |
303.2, -44.3 | [657] | [354] | [132, 790] | |
Pos.: [255, 355]; in SMC: [354]; two Be stars within error circle: [104]; high variability: [355, 354]. | ||||||
0050-727 | T | 00 50 19.5 | *4 | ![]() |
<1-5 | |
SMC X-3 | -72 42 24 | O9 III-Ve, 0.03 | ||||
A, H, S, X | o 3
![]() |
302.9, -44.7 | [95] | [7, 146] | [95] | |
Pos.: [63]; transient: [95, 96]; projected rotational velocity
![]() |
||||||
J 0050.7-7316 | P | 00 50 44.7 | Be star | 15.44, -0.03, -0.95 | 0.16 | 1.416 |
J0051-733 | -73 16 05 | Be, - - | (0.7-10 keV) | 323 | ||
R, AS | o 1
![]() |
303.0, -43.8 | [141] | [104, 141] | [788] | [104, 788] |
Pos.: [104]; in SMC: [141]; orbital period 0.708 days: [118, 616]; orbital solution: [104]. | ||||||
J0051-722 | TP | 00 50 55.8 | Be star | 14.9, - -, - - | 2.6 | 120 |
-72 13 55 | Be | 91.1 | ||||
X, R, B | x 10
![]() |
303.0, -44.9 | [657] | [657] | [424] | [334, 461] |
Pos.: [132]; in SMC: [461]; X-ray pulsation: [132, 334, 424]; strong emission lines: [657]; opt. spectrum: [657]. | ||||||
J 0051.8-7231 | TP | 00 51 53.0 | *2 | 0.01-9 | ||
2E 0050.1-7247 | -72 31 45 | Be, - - | 8.9 | |||
E, X, R, B | x 11
![]() |
302.9, -44.6 | [657] | [354] | [330] | |
Pos.: [354]; in SMC: [354]; X-ray activity: [354]; neither AV111 nor star 1 is the opt. counterpart: [657]. | ||||||
J 0051.9-7311 | T | 00 51 51.4 | B[e] star | 14.4, - -, - - | ||
SMC 25 | -73 10 38 | B[e], - - | ||||
R | x | 302.9, -43.9 | [141] | [141] | ||
Pos.: [141]; unassociated with the supernova remnent DEM 60: [141]. | ||||||
J 0052.1-7319 | TP | 00 52 13.9 | SMC SC6 99923 | 14.667, -0.005, - - | 0.024-4.7 | |
-73 19 13 | Be, - - | 15.3 | ||||
E, X, R | x 1.9
![]() |
302.8, -43.8 | [702] | [702, 332] | [399] | [399] |
Pos.: [255]; in SMC: [399]; highly variable X-rays: [353]; strong H![]() ![]() |
||||||
J 0052.9-7158 | TU | 00 52 54.0 | Be star | 15.46, -0.07, -0.99 | 2 | |
SMC 32 | -71 58 08 | Be, - - | (0.15-2.4 keV) | |||
R | x | 302.8, -45.1 | [141] | [141] | [141] | |
Pos.: [141]; unlikely the supernova remnant IKT4: [141]; highly variable in X-rays: [141]; trans. supersoft source: [141]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
0053-739 | T | 00 52 53.1 | *5 | 16.0, -0.3, -0.5 | < 1-7 | |
SMC X-2 | -73 57 19 | B1.5 Ve, 0.03 | ||||
A, S | o | 302.6, -43.4 | [95] | [506] | [95] | |
Pos.: [506]; transient: [95, 96]; southern component of a close pair: [506];
![]() |
||||||
0053+604 | 00 53 40.3 | ![]() |
1.6-3.0, -0.15, -1.08 | 5-11 | ||
+60 26 47 | B0.5 Ve, 0.05 | |||||
U, A, H, S, AS, B | o | 123.6, -2.1 | [177] | [489] | [63] | |
Pos.: [63]; X-ray spectrum: [219, 505, 542]; UV observations: [51, 170, 261, 273, 455]; variable Be star: [235, 456, 739, 769];
radial-velocity variations: [343];
![]() ![]() |
||||||
J 0053.8-7226 | TP | 00 53 55.0 | 1.4 | 139 | ||
0053-724 | -72 26 47 | B1V | 46.63 | |||
X, R | x 10
![]() |
302.7, -44.7 | [132] | [132, 425] | ||
Pos.: [132]; in SMC: [132]; X-ray pulsations: [132, 425]; possibly a Be star [425]; spectral type: see [513]. | ||||||
J0054-720 | TP | 00 54.6 | 3.8 | |||
-72 04 | 169.3 | |||||
X, B | x 10
![]() |
302.6, -45.0 | [428] | [428] | ||
Pos.: [428]; most likely a Be/X-ray system in SMC: [429]. | ||||||
J0055-724 | TP | 00 54 56.17 | Be star | 15.28, -0.04, -0.78 | 1 | 65 |
J 0054.9-7226 | -72 26 27.6 | B0-B1III-V, 0.06-0.28 | 58.969 | |||
X, B, R, E | x 0.1
![]() |
302.6, -44.7 | [621, 657] | [104, 279, 621] | [458] | [429, 458, 610] |
Pos.: [104]; in SMC: [458]; orbital period 14.26 days: [104]; very strong emission lines: [657]; consistent with Einstein source 2E 0053.2-7242: [610]. | ||||||
J0058-72.0 | P | 00 57 48.4 | 0.1 | |||
J0058-7203 | -72 02 42 | (0.7-10 keV) | 280.4 | |||
AS, R | x 7.9
![]() |
302.2, -45.0 | [788] | [788] | ||
Pos.: [255]; HMXB in SMC (?): [255]. | ||||||
J 0058.2-7231 | 00 58 12.7 | Be star | 15.0, - -, - - | |||
-72 30 45 | Be, - - | |||||
R | x | 302.2, -44.6 | [621] | [621] | ||
Pos.: [621]; very weak X-ray emission in SMC: [621]. | ||||||
J 0059.2-7138 | TUP | 00 59 11.3 | Be star | 14.1, 0.11, - - | 3 | |
-71 38 45 | B1IIIe, 0.03 | (0.2-2 keV) | 2.7632 | |||
R, E | x 2.8
![]() |
302.1, -45.4 | [650] | [650] | [299] | [299] |
Pos.: [255]; in SMC: [299]; strong H![]() |
||||||
J 0101.0-7206 | T | 01 01 01.1 | Be star | 0.1 | ||
-72 06 57 | Be | |||||
R, E | x 2.8
![]() |
301.9, -45.0 | [657] | [354] | ||
Pos.: [354]; in SMC: [354]; very strong H![]() |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
J0103-722 | P | 01 03 13.9 | Be star | 14.8, 0.089, - - | 0.01-0.1 | |
J 0103.2-7209 | -72 09 14.0 | O9-B1(III-V), 0.23 | (0.2-2 keV) | 345.2 | ||
R, A, B | o 0.1
![]() |
301.6, -44.9 | [300] | [104, 300] | [300, 334] | [334] |
Pos.: [104]; in SMC: [334]; consistent with the known supernova remnant SNR 0101-724 and the Einstein
source 1E
0101.5-7225: [300]; strong H![]() |
||||||
0103-762 | T | 01 07 45.1 | Be star | 17, - -, - - | 2.3 | |
0107-750 | -75 00 38 | Be, 0.03 | ||||
H, V, R | o | 301.9, -41.1 | [698] | [781] | ||
Pos.: [698]; variable X-ray source: [698]; member SMC: [698]. | ||||||
J0105-722 | TP | 01 05 08.9 | 0.1 | |||
J 0105.1-7211 | -72 11 44 | 3.343 | ||||
AS, R | x 6.6
![]() |
301.4, -44.9 | [203] | [203] | [789] | |
Pos.: [255]; in SMC: [789]; containing six sources: [203]; likely a Be/X-ray binary: [203]; multiwavelenth obs.: [203]. | ||||||
J 0106.2-7205 | 01 06 15.1 | Be star | 16.7, - -, - - | 0.005 | ||
-72 05 25 | B2-B5 III-Ve, 0.05-0.25 | (0.2-2 keV) | ||||
R | x 15
![]() |
301.3, -45.0 | [300] | [300] | [300] | |
Pos.: [356]; consistent with the known supernova remnant SNR 0104-72.3 in SMC: [300]; opt/IR obs.: [605]. | ||||||
J 0111.2-7317 | TP | 01 11 08.4 | Be star | 15.32, 0.08, - - | 15 | |
-73 16 46 | B0-2III-Ve, - - | 31.0294 | ||||
X, AS, C | o 1
![]() |
301.0, -43.7 | [113] | [113] | [87] | [86] |
Pos.: [113]; in SMC: [86]; optical outbursts: [113]; very strong emission lines: [332]. | ||||||
0114+650 | P | 01 14 41.8 | V662 Cas | 11.0, 1.2, 0.1 | 4 | 11.6 |
+65 01 32 | LS I+65![]() |
B0.5 Ib, 1.4 | 10008 | |||
A, S, X | o 3
![]() |
125.7, +2.6 | [177] | [3, 148] | [63] | [148, 210, 785] |
Pos.: [63]; X-rays: [326, 619, 785]; the longest pulsation period: [133]; opt. spectra: [3, 148, 446, 421];
![]() |
||||||
0115+634 | TP | 01 15 13.8 | V635 Cas | 14.5-16.3, 1.4, 0.3 | <2-350 | 24.3 |
+63 28 38 | B0.2V, 1.7 | 3.61 | ||||
U, M, H, S, C, X | o | 125.9, +1.0 | [347] | [345, 473, 513] | [63] | [508, 569] |
Pos.: [347]; X-ray outbursts: [559, 590, 597, 673, 697]; recurrence time 3 yr (?): [770]; X-ray spectrum: [590, 765];
X-ray cyclotron line: [272, 511, 673]; opt. pre-outburst behaviour: [393, 473]; long-term opt. phot.: [473];
opt. spectra: [309, 706];
![]() |
||||||
0115-737 | P | 01 15 45.6 | Sk 160 | 13.3, -0.14, -0.98 | 0.5-57 | 3.89 |
SMC X-1 | -73 42 22 | B0 Ib, 0.03 | 0.71 | |||
U, M, A | o 3
![]() |
300.4, -43.6 | [609] | [312, 753] | [63] | [508, 566, 623] |
Pos.: [95]; highly variable X-ray source: [629]; pulse timing & X-ray orbit: [566]; aperiodic X-ray variability: [11];
long-term X-ray obs.: [54, 247]; X-ray sp. [762, 765]; opt. lt crv. & system parameters: [375, 417, 689, 725]; opt.
spectrum & orbit: [312, 584];
![]() |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
J 0117.6-7330 | TP | 01 17 41.4 | Be star | 14.19, -0.07, - - | 10 | |
-73 30 49 | B0.5IIIe, 0.03 | 22.07 | ||||
C, R | x 0.6
![]() |
300.4, -43.5 | [90, 649] | [439] | [439] | |
Pos.: [255]; in SMC: [98]; X-ray outburst: [98]; IR excess and strong H![]() ![]() |
||||||
J0146.9+6121 | 01 43 32.6 | LS I+61![]() |
11.33, 0.82, -0.39 | 1-3 | ||
+61 06 26 | B1Ve, 0.87 | (0.1-2.4 keV) | 1404.2 | |||
R, AS, X, B | o 2
![]() |
129.2, -1.2 | [267] | [143, 410, 579, 640] | [499] | [254] |
Pos.: [267]; in open cluster NGC 663: [438];
![]() |
||||||
0236+610 | 02 36 40.6 | LS I+61![]() |
10.7, 0.8, -0.3 | 0.2 | 26.45 | |
+61 00 54 | V615 Cas | B0e, 0.75 | (0.2-5 keV) | |||
E | o, r | 135.7, +1.1 | [70, 267] | [180, 308, 600] | [48] | [677] |
Pos.: [242]; X-ray source: [48]; radio outbursts: [677, 678]; four-year modulation radio outbursts: [185, 243, 534];
VLBI radio jet: [467, 679]; optical light curve: [472, 532, 533]; opt. spectra: [5, 308]; orbital solution: [308, 463];
![]() ![]() ![]() |
||||||
0331+530 | TP | 03 31 14.9 | BQ Cam | 15.1-15.4, 1.6-2.3, - - | <0.5-1250 | 34.25 |
+53 00 24 | O8.5Ve, 1.9 | 4.4 | ||||
V, T, Exo | o | 146.1, -2.2 | [381] | [128, 290, 513] | [655, 683] | [508, 655, 771] |
Pos.: [381]; X-ray outbursts: [655, 683, 771]; X-ray obs.: [444]; rapid X-ray variability: [38]; X-ray cyclotron line:
[443]; X-ray pulse phase sp.: [705]; optical id.: [42, 381]; optical spectrum: [661];
![]() ![]() |
||||||
0352+309 | P | 03 52 15.1 | X Per | 6.0-6.6, 0.29, -0.82 | <9-37 | 580? |
+30 54 01 | B0 III-Ve, 0.4 | 835 | ||||
U, M, A, H, S | o | 163.1, -17.1 | [64] | [311, 434, 489, 639] | [63] | [306, 508] |
Pos.: [63]; X-rays: [591, 754]; X-ray sp.: [765]; optical id.: [71]; long-term optical record: [298, 422, 494]; reported 580
day period unlikely to be orbital: [306, 311, 548]; disappearance emission lines: [520]; system velocity: [721];
![]() ![]() |
||||||
J0421+560 | T | 04 19 46.0 | CI Cam | 9.25, 1.0, -0.4 | 2000 | |
55 59 24 | - -, 0.8 | |||||
X, B, C, AS | x 50
![]() |
149.2, +4.1 | [100a, 323] | [40, 523] | ||
Pos.: [523]; X-ray outbursts: [643]; multi-wavelength
obs.: [40]; optical outbursts: [593];
radio obs.: [287]; radio position: [285]; likely a black hole
candidate: [40]; B[e]: [40]; an unusual symbiotic-type
X-ray binary (?): [220]; distance ![]() |
||||||
J0440.9+4431 | P | 04 40 59.9 | BSD 24-491 | 10.78, 0.61, -0.36 | 1 | |
44 31 51 | B0V-IIIe | 202.5 | ||||
R, X | x 17
![]() |
159.8, -1.3 | [142] | [500] | [577] | [577] |
Pos.: [500]; distance 3.2 kpc: [500]; optical spe.: [500]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
J 0501.6-7034 | 05 01 23.9 | Be star | 14.5, -0.07, - - | |||
CAL 9 | -70 33 33 | B0e, - - | ||||
E, R | x 2.9
![]() |
281.9, -34.5 | [618] | [618] | ||
Pos.: [612]; in LMC: [618]; opt. cpt. HV 2289: [618]; IUE ultraviolet obs.: [620]. | ||||||
J 0502.9-6626 | TP | 05 02 51.6 | Be star | 14.22, -0.10, - - | 5.7 | |
CAL E | -66 26 25 | B0e, - - | 4.0635 | |||
E, R | x 1.2
![]() |
277.0, -35.4 | [618] | [617] | [619] | [619] |
Pos.: [612]; in LMC: [618]; highly variable X-ray emission: [618]; IUE ultraviolet obs.: [620]. | ||||||
J 0512.6-6717 | 05 12 41.8 | |||||
-67 17 23 | ||||||
R | x 40
![]() |
277.8, -34.3 | ||||
Pos.: [250]; a HMXB in LMC (?): [250]; weak source, hard X-ray spectrum: [250]. | ||||||
J 0516.0-6916 | T | 05 16 00.1 | star 2 | 15.0, -0.1, -0.9 | 0.07 | |
-69 16 09 | B1e | |||||
R | x 7.3
![]() |
280.1, -33.6 | [141] | [141] | [141] | |
Pos.: [612]; LMC member: [141]. | ||||||
J 0520.5-6932 | T | 05 20 30.3 | Be star | 14.4, - - , - - | ||
-69 32 04 | O8e, - - | |||||
R | x 16.6
![]() |
280.3, -33.2 | [618] | [618] | ||
Pos.: [250]; in LMC: [618]; IUE ultraviolet obs.: [620]; not detected with Einstein: [618]. | ||||||
0521+373 | 05 19 10.7 | HD 34921 | 7.51, 0.14, -0.86 | 1 | ||
+37 37 44 | SAO57950 | B0 IVpe, 0.42 | ||||
U, H | o | 170.0, +0.7 | [646] | [78, 555, 599] | [215, 781] | |
Pos.: [646]; hard X-ray spectrum: [555]; UV/opt./IR obs.: [555, 599]; IR spe.: [100]; unclB[e] star: [100]. | ||||||
J 0529.8-6556 | TP | 05 29 48.4 | GSC 8891.0213 | B=14.5, R=13.3 | 0.17 | |
-65 56 51 | B2III-Ve, - - | 69.5 | ||||
R | x 8
![]() |
275.9, -32.9 | [253] | [253] | [253] | [253] |
Pos.: [253]; LMC member: [253]; opt. spectrum: [253]. | ||||||
053109-6609.2 | TP | 05 31 09 | 1 | 25.4 | ||
-66 09 12 | Be?, 0.1 | 13.7 | ||||
Exo, SL, B, R | x 10
![]() |
276.2, -32.7 | [265] | [265] | [165] | |
Pos.: [530]; in LMC: [265]; hard X-ray spectrum: [265]; X-ray outburst: [75]; not detected with Einstein: [265]; optical cpt. probably Be star: [265]; orbital period between 4 and 40 days, mostly 25.4 days: [165]. | ||||||
J 0531.5-6518 | 05 31 36.1 | |||||
-65 18 16 | ||||||
R | x 18.8
![]() |
275.1, -32.7 | [250] | |||
Pos.: [250]; HMXB in LMC: [250]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
0532-664 | P | 05 32 47.3 | Sk-Ph | 14.0, -0.1, -1.1 | <3-60 | 1.40 |
LMC X-4 | -66 24 13 | O7 III-V, 0.1 | 13.5 | |||
U, M, A, H, AS, G, R | o 2
![]() |
276.3, -32.5 | [93] | [280, 365, 431] | [63] | [365, 508] |
Pos.: [63]; X-ray orbital parameters: [365, 411, 553]; X-ray eclipses: [413, 756]; 30 day period X-ray: [400];
X-ray spectrum: [665, 765]; rapid X-ray variability: [38]; X-ray flare: [553]; opt. light curve: [92, 271, 326];
opt. spectrum & radial velocity curve: [314];
![]() |
||||||
J 0532.4-6535 | 05 32 25.3 | RGC 36 | J=11.9, H=11.1, K=10.7 | 0.01 | ||
-65 35 09 | (0.1-2.4 keV) | |||||
R | x 17.4
![]() |
275.4, -32.6 | [575] | [250] | ||
Pos.: [250]; hard X-ray spectrum: [250]; Be star in LMC: [250]. | ||||||
J 0532.5-6551 | V | 05 32 32.6 | Sk-65 66 | 12.3, - -, - - | 0.03 | |
-65 51 40.8 | OB | (0.1-2.4 keV) | ||||
R | o | 275.7, -32.6 | [609] | [609] | [253] | |
Pos.: [609]; in LMC: [253]; long-term X-ray variation [253]; Black hole candidate or a NS: [253]. | ||||||
J 0535.0-6700 | T | 05 35 05.9 | RGC 28 | 18.1, - -, - - | 0.04 | 241? |
-67 00 16 | Be?, - - | (0.1-2.4 keV) | ||||
R | x 4
![]() |
277.1, -32.2 | [575] | [575] | [250] | [575] |
Pos.: [250]; in LMC: [250]; IR photometry: [575]; Be/X-ray system: [250]. | ||||||
0535-668 | PT | 05 35 42.4 | *Q | 12.3-14.9, 0.1, -0.9 | <0.01-180 | 16.7 |
0538-66 | -66 53 39 | B2 III-Ve, 0.1 | 0.069 | |||
A | o 2
![]() |
276.9, -32.2 | [89, 350] | [89, 167, 431, 528] | [63] | [508, 636] |
Pos.: [350]; in LMC: [348, 528]; X-ray outbursts: [348, 757]; X-ray pulsations: [637]; optical outbursts: [89, 126, 167, 636, 729]; long-term off states: [430, 528]; quiescent opt. phot. & spectroscopy: [126, 320, 641, 642, 709, 729]; very strong emission lines during outbursts: [89]; IR obs.: [8]; opt. polarimetry: [102]; UV obs.: [89, 295, 573]; wind structure: [746]; X-ray obs. during quiescence: [484]; accretion to magnetosph.: [130]. | ||||||
0535+262 | TP | 05 35 48.0 | V725 Tau | 8.9-9.6, 0.45-0.62, -0.54 | <3-2800 | 111 |
+26 17 18 | HD 245770 | O9.7IIIe, 0.8 | 104 | |||
U, A, H | o | 181.4, -2.6 | [414] | [225, 449, 653, 660] | [63] | [508, 561] |
Pos.: [63]; transient: [509, 598]; long-term X-ray obs.: [561]; hard X-ray obs.: [108, 371, 585, 628]; 55.7 d orbit?: [754];
long-term optical record: [41, 660]; opt. phot.: [266, 634]; opt. spectr.: [4, 313, 319];
![]() |
||||||
J 0535.8-6530 | 05 35 53.8 | 0.5 | ||||
-65 30 34 | (0.1-2.4 keV) | |||||
R | x 13
![]() |
275.3, -32.3 | [250] | |||
Pos.: [250]; likely a HMXB in LMC: [250]. | ||||||
0538-641 | U | 05 38 39.7 | *1 | 16.7-17.5, -0.2, -0.6 | <1.7-44 | 1.70 |
LMC X-3 | -64 06 34 | B3 Ve, 0.1 | ||||
U, M, A, H, F, X | o 3
![]() |
273.6, -32.1 | [716] | [136, 431, 708] | [63] | [136] |
Pos.: [38]; X-ray obs.: [349]; long-term X-ray obs.: [545]; rapid X-ray variability: [38]; X-ray spectrum: [665, 693, 759, 766];
199 d X-ray period: [138, 665]; opt. lt crv.: [50, 730]; mass function: [136, 395, 525];
![]() |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
0540-697 | U | 05 40 05.5 | *32 | 14.5, 0.29, -0.70 | 3-25 | 4.22 |
LMC X-1 | -69 46 04 | O7-9 III, 0.37 | ||||
U, M, A, H, X | o 3
![]() |
280.2, -31.5 | [135, 181] | [47, 318] | [63] | [322] |
Pos.: [63]; ultra-soft X-ray spe.: [759]; X-ray spe. & QPO: [184]; rapid X-ray variability: [38]; X-ray
obs.: [349, 665]; mass function: [322];
![]() |
||||||
J 0541.4-6936 | 05 41 22.2 | Sk-69 271 | 12.01, 0.00, - - | |||
-69 36 29 | B2SG, - - | |||||
R | x 6.6
![]() |
280.0, -31.4 | [612] | [335, 603] | ||
Pos.: [612]; supergiant in LMC: [612]. | ||||||
J 0541.5-6833 | 05 41 37.1 | LMC BI267 | 14.02, -0.03, -1.04 | |||
-68 32 32 | OB0 | |||||
R | x 4.5
![]() |
278.8, -31.4 | [74] | |||
Pos.: [74]; LMC member: [612]. | ||||||
0544-665 | 05 44 15.6 | *1 | 15.4, -0.20, -0.96 | 1.8 | ||
-66 34 59 | B1 Ve, 0.1 | |||||
H | o 3
![]() |
276.5, -31.4 | [349] | [431, 715] | [349] | |
Pos.: [38]; optical id. not completly certain: [715]; *1 member of LMC: [715]. | ||||||
J 0544.1-710 | TP | 05 44 06.3 | Be star | 15.33, 0.13, - - | 0.14-0.36 | |
J 0544.1-7100 | -71 00 50 | Be, 0.32 | (2-10 keV) | 96.08 | ||
B, R, E | x 3.3
![]() |
281.6, -31.0 | [151] | [151] | [151] | [151] |
Pos.: [250]; in LMC: [151]; very hard X-ray spectrum: [151]; pronounced H![]() |
||||||
0556+286 | 05 52 44.3 | HD 249179 | 9.2, - -, - - | 1.1 | ||
+28 46 41 | B5ne, - - | |||||
H | o | 181.3, +1.9 | [557, 698] | [781] | ||
Pos.: [698]; Be star: [739]. | ||||||
J0635+0533 | P | 06 35 17.4 | 12.83, +0.98, - - | 0.55 | ||
05 33 20.9 | B2V-B1IIIe, 1.2 | 0.0338 | ||||
B | x 1![]() |
206.1, -1.0 | [352] | [352] | [352] | [152] |
Pos.: [352]; opt. emission line: [352]; within the error box of the GeV ![]() ![]() |
||||||
J 0648.0-4419 | P | 06 48 04.6 | HD 49798 | 8.27, -0.24, -1.18 | 0.03 | 1.55 |
-44 18 54.4 | sdO6, - - | 13.1789 | ||||
R, B | x 10
![]() |
253.7, -19.1 | [329] | [344] | [329, 684] | |
Pos.: [768]; distance 650 pc: [329]; very soft X-ray spe.: [329]; ultraviolet spe.: [73]; likely a NS: [329]; compact being a WD(?): [49]. | ||||||
0726-260 | TP | 07 26 50.0 |
![]() |
11.6, 0.3, -0.6 | 1.2-4.7 | 34.5 |
-26 00 13 | O8-9Ve, 0.6 | 103.2 | ||||
U, A, E, H, R, X | o | 240.3, -4.1 | [654] | [515, 654] | [743, 781] | [131] |
Pos.: [654]; distance 4.6 or 6.1 kpc: [124a, 515]; X-ray flare: [654]; opt./IR obs.: [515]; orbital and spin periods: [131]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
0739-529 | 07 46 09.8 | HD 63666 | 7.62, 0.02, -0.24 | 0.7 | ||
-53 12 28 | SAO235515 | B7 IV-Ve, - - | ||||
H | o | 266.4, -13.7 | [646] | [293, 437, 518, 698] | [781] | |
Pos.: [698]. | ||||||
0749-600 | 07 55 27.7 | HD 65663 | 6.73, 0.05, -0.25 | 0.7 | ||
-60 57 54 | SAO250018 | B8 IIIe, 0.09 | ||||
H | o | 274.0, -16.2 | [646] | [153, 154, 698] | [781] | |
Pos.: [698]; Be star: [739]; in open cluster NGC 2516: [153]. | ||||||
J 0812.4-3114 | TP | 08 12 28.4 | LS 992 | 12.42, 0.41, -0.69 | 0.6 | 80 |
-31 14 51 | B0.5V-IIIe, - - | 31.8851 | ||||
R, X | x 21
![]() |
249.6, +1.6 | [500] | [500] | [500] | [125, 577] |
Pos.: [500]; distance 9.2 kpc: [500]; optical spectrum: [500]. | ||||||
0834-430 | TP | 08 34 10 | star *D | 20.4, - -, - - | 30-300 | 110 |
-43 00.6 | B0-2 III-Ve, 4.0 | 12.3 | ||||
Gr, R, K, G, C | x 1![]() |
262.0, -1.5 | [334a] | [334a] | [239] | [239, 773] |
Pos.: [269]; more accurate pos. for epoch 2000: 08 35 55.4, -43 11 11.9 (o 1
![]() ![]() |
||||||
0900-403 | P | 09 00 13.2 | HD 77581 | 6.9, 0.47, -0.51 | 2-1100 | 8.96 |
Vela X-1 | -40 21 25 | GP Vel | B0.5 Ib, 0.7 | 283 | ||
U, M, A, H, B, X, AS, R | o | 263.1, +3.9 | [213] | [183, 495, 518, 717] | [63] | [162, 508, 711] |
Pos.: [63]; X-ray sp.: [510, 891, 614, 765]; cyclotron line: [371]; pulse timing & X-ray orbit:
[61, 62, 161, 162, 571, 696, 711]; X-ray eclipses: [213, 703]; limits on apsidal motion: [160]; rapid X-ray variability: [38];
orbital variation X-ray absorption: [251]; energy dependence pulse profile: [570]; opt. light curve: [374, 689];
long-term cycles (?): [559, 689]; opt. radial-velocity curve: [720, 726]; system velocity: [721];
![]() |
||||||
J1008-57 | TP | 10 09 46 | star | 15.27, -1.66, - - | 1200 | 135 |
-58 17 32 | ![]() |
93.5 | ||||
C, R, AS, Exo | x 15
![]() |
283.0, -1.8 | [109] | [109, 587] | [663] | [550, 635, 663] |
Pos.: [550]; IR and optical spectral obs.: [109]; 260 days orbital period: [206]; distance 5 kpc: [109]; large IR excess: [109]. | ||||||
1024.0-5732 | P | 10 24 05.4 | Wack 2134 | 12.7, 1.5, - - | 1-10 | |
-57 33 24 | TH![]() |
O5:, 1.8 | (0.2-4.5 keV) | 0.061 | ||
E | o 6
![]() |
284.5, -0.2 | [686] | [81] | [81] | [81] |
Pos.: [81]; no optical pulsations: [169]; emission line star: [739]; a Wolf-Rayet star+ O star sys. rather than a HMXB: [576]. | ||||||
1036-565 | 10 28 28.3 | HD 91188 | 6.64, -0.10, -0.56 | 3.3 | ||
4U1036-56 | -56 49 14 | SAO238130 | B4 IIIe, - - | |||
A | o | 284.6, +0.7 | [646] | [221, 518] | [743] | |
Pos.: [698]; probably the same source as RX J 1037.5-5674: [500]; Be star: [739]; X-ray flare 1974 Nov.: [743]; periodic (2.924d) optical brightness variations reflect rotation of Be star: [27, 28]; IR spe.: [474]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
J 1037.5-5647 | P | 10 37 35.2 | LS 1698 | 11.3, 0.9, - - | 0.17 | |
-56 47 59 | B0V-IIIe, 0.75 | 862 | ||||
R | x 21
![]() |
285.4, +1.5 | [500] | [500] | [577] | [577] |
Pos.: [500]; distance 5.0 kpc: [500]; HD 91188 not the opt. cpt.: [500]; probably same source as 4U 1036-56: [500]. | ||||||
1048.1-5937 | P | 10 48 09.0 | <0.1-1 | |||
-59 37 21 | 6.44 | |||||
E | x 9
![]() |
288.2, -0.5 | [477] | [632] | [124, 632] | |
Pos.: [477]; discovery: [632]; Be/X or LMXB (?): [124]; opt. phm. and sp. of possible counterparts: [477]; excluding Main-sequence companion: [479]. | ||||||
1118-615 | PT | 11 18 45.2 | He3-640 | 12.1, 0.96, -0.30 | 0.1-70 | |
-61 38 31 | O9.5 III-Ve, 1.2 | 405 | ||||
A | o | 292.5, -0.9 | [339] | [339] | [63, 497] | [508] |
Pos.: [63]; X-ray transient: [187, 336, 433]; opt. phot. & spe.: [339]; sys. velocity: [721];
![]() |
||||||
1119-603 | P | 11 19 01.9 | V779 Cen | 13.3, 1.07, -0.04 | 10-312 | 2.09 |
Cen X-3 | -60 20 57 | O6.5 II-III, 1.4 | 4.84 | |||
U, M, A, H | o 3
![]() |
292.1, +0.3 | [72, 394] | [315, 394, 586] | [63] | [366, 508] |
Pos.: [63]; X-ray pulsations: [224, 696]; X-ray orbit: [366]; period decay: [188, 366]; X-ray spectrum: [25, 76, 432, 765];
long-term X-ray history: [246, 328, 558, 562, 624]; X-ray eclipses: [622]; X-ray obs.: [296, 504, 512]; aperiodic X-ray
variability: [38]; QPO: [668]; opt. light curve: [373, 689, 727]; opt. radial-velocity curve: [315, 502, 524]; mass of the
NS: [22];
![]() ![]() |
||||||
1145-619 | PT | 11 45 33.6 | Hen 715 | 9.3, 0.18, -0.81 | 4-1000 | 187.5 |
-61 55 44 | HD 102567 | B1 Vne, 0.35 | 292.4 | |||
U, M, A, H, S | o | 295.6, -0.2 | [64] | [195, 518, 746] | [63] | [508, 748] |
Pos.: [63]; X-ray spectrum: [765]; X-ray obs.: [475]; long-term X-ray history: [562, 748]; opt. spectrum: [340, 762];
![]() |
||||||
1145.1-6141 | P | 11 45 02.3 | V830 Cen | 13.1, 1.5, 0.15 | 4-40 | 5.65 |
-61 40 33 | B2Iae, 1.6 | 298 | ||||
A, E, C | o 2
![]() |
295.5, -0.0 | [316] | [166, 325] | [316] | [325, 508] |
Pos.: [316]; X-ray pulsations: [762]; orbital periods 10.76 d from opt. sp.: [321];
system velocity: [721]; 15![]() |
||||||
1223-624 | PT | 12 23 49.7 | BP Cru | 10.8, 1.76, 0.42 | 9-1000 | 41.59 |
GX 301-2 | -62 29 37 | Wra 977 | B1-1.5 Ia, 1.8 | 696 | ||
U, M, A, H, S, AS, C | o 3
![]() |
300.1, -0.0 | [64] | [59, 260, 688, 734] | [63] | [508, 613] |
Pos.: [63]; X-ray spectrum: [765]; long-term X-ray record (recurrent outbursts near periastron): [560, 601, 749]; X-ray obs.: [248, 405, 588, 589, 760]; pulse-phase spectr.: [403]; pulse profile: [485]; X-ray orbit: [613]; X-ray dips: [404]; aperiodic X-ray variability: [38, 675]; rapid spin-up episodes: [383]; optical spectrum: [58, 260, 317, 539, 688]; optical photometry: [526, 723]; system velocity: [721]; IR obs.: [232]; a hypergiant (?): [360]. | ||||||
1239-599 | P | 12 39 07.5 | 3-16 | |||
-59 55 39 | 191 | |||||
A, H, S | x 30
![]() |
301.8, +2.6 | [177] | [63, 743, 781] | [297] | |
Pos.: [177]; hard X-ray spectrum: [297]; see also: [82]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
1244-604 | T | 12 44 38 | <24-100 | |||
-60 22.2 | ||||||
A | x 6.2![]() |
302.5, +2.2 | [82] | |||
Pos.: [82]. | ||||||
1246-588 | T | 12 46 39 | <24-300 | |||
-58 51.0 | ||||||
U, A, H | x 4.5![]() |
302.7, +3.8 | [82] | |||
Pos.: [82]. | ||||||
1249-637 | 12 39 53.2 | HD 110432 | 5.31, 0.27, -0.79 | 2.2 | ||
-62 47 06 | SAO252002 | B0 IIIe, 0.40 | ||||
H | o | 302.0, -0.2 | [646] | [103, 518] | [781] | |
Pos.: [698]; Be star: [739]; UV obs.: [103]; interstellar abs. lines: [149]; optical obs.: [156, 196, 212]; variable radial velocity: [77, 685]; white-dwarf accretor(?): [745]. | ||||||
1253-761 | 12 35 59.8 | HD 109857 | 6.49, 0.08, -0.24 | 0.6 | ||
-75 05 43 | SAO256967 | B7 Vne, 0.20 | ||||
H | o | 302.1, -12.5 | [646] | [103, 518] | [781] | |
Pos.: [698]; Be star: [739]; visual double (sep. 2.2
![]() |
||||||
1255-567 | 12 51 39.6 | ![]() |
5.17, -0.12, -0.51 | 0.8 | ||
-56 53 50 | HD 1120912 | B5 Ve, 0.04 | ||||
H | o | 303.4, +5.7 | [518, 639] | [781] | ||
Pos.: [698]; Be star: [739];
![]() ![]() |
||||||
1258-613 | PT? | 12 58 11.8 | V 850 Cen | 13.5-14.2, 1.7, 0.8 | 0.3-200 | 133? |
GX 304-1 | -61 19 58 | *2 (MMV) | B2 Vne, 2.0 | 272 | ||
U, M, A, S | o 2
![]() |
302.1, +1.2 | [465] | [127, 256, 538] | [63, 554] | [508, 562] |
Pos.: [465]; long-term X-rays: [559, 562]; X-ray off state: [554]; X-ray spectrum: [588, 765]; opt. spectrum: [123, 465, 688];
long-term opt. variations: [127, 256];
![]() |
||||||
J 1324.4-6200 | P | 13 24 26.3 | 0.4 | |||
1323-6196 | -62 00 53 | 170.84 | ||||
B, AS, Exo, E | x 1.5![]() |
306.8, +0.61 | [13] | [13] | ||
Pos.: [13]; distance >3.4 kpc: [13]; hard X-ray spe.: [13]; likely a Be/X-ray system: [13]. | ||||||
1417-624 | PT | 14 17 25.5 | *7 | 17.2:, 0.7:1.7, 0.8 | 2-43 | 42.12 |
-62 28 11 | OBe, 2: | 17.6 | ||||
U, M, A, S, C | o | 313.0, -1.6 | [18] | [244] | [63] | [207, 508] |
Pos.: [63]; X-ray obs.: [18, 207, 364]; opt. id: [244]; orbital parameters: [207]; Centaurus 1971-2 transient (?): [115, 755]; 1994 II-type outburst: [207]. | ||||||
J 1452.8-5949 | P | 14 52 49.3 | 0.04 | |||
-59 49 18 | 437.4 | |||||
B | x 50
![]() |
317.6, -0.44 | [522] | [522] | ||
Pos.: [522]; distance: [522]; probably a Be star: [522]; X-ray spe.: [522]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
1538-522 | P | 15 38 38.6 | QV Nor | 14.4, 1.9, 0.6 | <3-30 | 3.73 |
-52 13 37 | *12 | B0 Iab, 2.1 | 529 | |||
U, M, A, H, S | o | 327.4, +2.1 | [17] | [147, 324, 537] | [63] | [114, 508] |
Pos.: [63]; X-ray obs.: [114, 150, 442, 592]; X-ray eclipses: [35, 159]; X-ray orbit: [442];
X-ray spectrum: [442, 765]; X-ray cyclotron line: [94]; long-term spin-up trend: [604]; opt.
light curve: [529]; radial-velocity curve: [147, 583];
![]() |
||||||
1553-542 | P | 15 53 55.6 | 27 | 30.6 | ||
-54 16 15 | 9.3 | |||||
S | x 3.5
![]() |
327.9, -0.9 | [17] | [63] | [367, 508] | |
Pos.: [63]; opt. counterpart likely a Be star: [367]; X-ray orbit: [367]. | ||||||
1555-552 | 15 50 26.4 | HD 141926 | 8.60, 0.56, -0.43 | 1.7 | ||
-55 10 54 | SAO243098 | B2nne, - - | ||||
H | o | 327.0, -1.2 | [646] | [193, 293] | [781] | |
Pos.: [698]; Be star: [739]. | ||||||
1657-415 | P | 16 57 16.8 | star | 4-42 | 10.4 | |
-41 35 59 | B0-B6Ia-Iab, - - | 38 | ||||
OAO, B | x 15
![]() |
344.4, +0.3 | [21] | [84] | [63] | [84, 205, 508] |
Pos.: [21]; error box ![]() |
||||||
1700-377 | 17 00 32.7 | HD 153919 | 6.6, 0.27, -0.72 | <11-110 | 3.41 | |
-37 46 29 | V884 Sco | O6.5f, 0.52 | ||||
U, M, S, Gro, C, B | o | 347.8, +2.2 | [351] | [259, 263, 547, 778] | [63] | [67, 251, 728] |
Pos.: [63]; X-ray variability: [38, 175, 252]; hard X-ray spectrum: [211, 552]; no X-ray pulsations: [175, 236]; opt. light
curve: [26, 91, 728]; opt. spectrum: [117, 155, 192, 274]; radial-velocity curve: [175, 258];
![]() |
||||||
J 170006-4157 | P | 17 00 5.3 | 0.4 | |||
-41 57 44 | 714.5 | |||||
AS | x 1![]() |
344.0, +0.25 | [691] | [691] | ||
Pos.: [691]; can't completely exclude the possibility that it is a WD binary: [691]. | ||||||
1722-363 | P | 17 22 33 | 0.2-5 | |||
-36 22 05 | 413 | |||||
Exo | x 9![]() |
351.5, -0.6 | [672, 676] | [508, 676] | ||
Pos.: [744]; hard X-ray spectrum: [676]; limits on orbital period: [672]. | ||||||
J1739-302 | T | 17 38 53 | 136 | |||
-30 15.6 | (2-25 keV) | |||||
X | x 3![]() |
358.1, +0.56 | [645] | |||
Pos.: [645]; radio obs.: [283]; probably a Be/X-ray sys.: [645]; X-ray spec. and short X-ray outburst: [645]. | ||||||
J 1739.5-2942 | 17 39 30.1 | 2 | ||||
-29 42 07 | ||||||
X, C | x 19.2
![]() |
358.6, -0.74 | [501] | [501] | ||
Pos.: [501]; likely a Be/X-ray binary: [501]; hard X-ray spec.: [501]; identical X-ray source 1736-297(?): [501]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() |
[FC] | ||||
J 1744.7-2713 | 17 44 45.4 | HD 161103 | 8.4, 0.44, -0.64 | 0.06 | ||
-27 13 47 | B2V-IIIe | |||||
R | x 18
![]() |
1.36, +1.1 | ||||
Pos.: [500]; strong emission lines: [500]; distance 0.8 kpc: [500]; likely Be/X-ray binary: [500]. | ||||||
J 1749.2-2725 | TP | 17 49 10.1 | 1.36 | |||
-27 25 16 | 220.38 | |||||
AS | x 1![]() |
1.7, +0.1 | [690] | [690] | ||
Pos.: [690]; weak X-ray source: [690]; hard X-ray spe.: [690]; likely a NS: [690]; within error of a nearby WD: [690]. | ||||||
J1750-27 | P | 17 49 12.0 | 27 | 29.8 | ||
-26 38 50 | 4.45 | |||||
C, AS | x 2![]() |
2.4, +0.5 | [777] | [176, 627] | ||
Pos.: [176]; no optical counterpart reported: [627]; likely Be system: [627]; large spin-up: [627]. | ||||||
1807-10 | T | 18 07.9 | <2-10 | |||
-10 53 | ||||||
U | x 1.3![]() |
18.6, +3.9 | [215] | |||
Pos.: (large error box): [215]; uncertain if HMXB or LMXB. | ||||||
J 1820.5-1434 | P | 18 20 29.5 | 1 | |||
-14 34 24 | 152.26 | |||||
AS | x 0.5![]() |
16.5, +0.07 | [376] | [376] | ||
Pos.: [376]; a highly obscured accretion-driven binary X-ray: [376]. | ||||||
J 1826.2-1450 | 18 26 14.9 | LS 5039 | 11.23, 0.94, -0.16 | 0.3 | ||
-14 50 29 | O7V((f)), 0.8 | |||||
R | x 22
![]() |
17.9, -1.29 | [500] | [500] | [500] | |
Pos.: [500]; distance 3.1 kpc: [500]; optical spe.:
[500]; radio cpt.: [463a]; X-ray and radio obs.: [584a];
a ![]() |
||||||
1833-076 | PT | 18 33 46.3 | 1.6-200 | |||
Sct X-1 | -07 38 54 | 111 | ||||
A, H | x 30
![]() |
24.5, -0.2 | [237] | [388, 563, 743] | [392, 508] | |
Pos.: [574]; alternative position (18 34 49.5, -07 38 05): [574]; X-ray obs.: [88, 278]; X-ray pulsations: [392]; hard X-ray spectrum: [122, 574]; long-term X-ray record: [563]; transient: [122]. | ||||||
1839-06 | T | 18 39.0 | 1 | |||
-05.9 | ||||||
G | x 30![]() |
26.6, -0.5 | [388] | |||
Pos.: [388]. | ||||||
1839-04 | PT | 18 39.2 | 2.5 | |||
-04.5 | 81.1 | |||||
G | x 24![]() |
27.9, +0.1 | [388] | [388] | ||
Pos.: [388]. | ||||||
1843+009 | PT | 18 43.0 | <0.4-33 | |||
+0.9 | 29.5 | |||||
G, C, X, B | x 10![]() |
33.1, +1.7 | [388] | [388] | ||
Pos.: [388]; X-ray obs.: [388, 389]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
1845-03 | T | 18 44.7 | 1 | |||
-03.2 | ||||||
G | x 24![]() |
29.7, -0.5 | [388] | |||
Pos.: [388]. | ||||||
1845-024 | PT | 18 45 41.1 | 1-44 | 241 | ||
-02 28 37 | 94.8 | |||||
A, H, S, G, C, B | x 30
![]() |
30.4, -0.4 | [237] | [63, 388] | [792, 388] | |
Pos.: [63]; X-ray obs.: [178, 388, 390, 630]; distance: [792]; same sources as GS 1843-02, X1845-024, and GRO J1849-03: [647]; likely a Be/X-ray: [647, 209]; X-ray outburst: [209]; high eccentricity (0.88): [209]. | ||||||
1845.0-0433 | T | 18 45 02 | 13.96, 2.2, 1.04 | 45 | ||
-04 33 31 | O9.5I, 2.45 | (0.7-10 keV) | ||||
AS | x 1![]() |
28.8, -1.22 | [111] | [111] | [786] | |
Pos.: [111]; discovery X-ray source: [786]; optical spectrum: [111]; distance 3.6 kpc: [111]. | ||||||
1855-02 | PT | 18 55.4 | 2 | |||
-02.8 | ||||||
G | x 10![]() |
31.3, -2.7 | [388] | |||
Pos.: [388]. | ||||||
J1855-026 | P | 18 55.7 | 6 | 6.1 | ||
-02 37 | 361 | |||||
X | x 6![]() |
31.1, -2.15 | [460] | [134, 460] | ||
Pos.: [460]; most likely a SG/X-ray system: [134]; BD-2 4786 not the opt. cpt.: [134]; X-ray spe.: [134]. | ||||||
J1858+034 | TP | 18 58.6 | 25 | |||
03 21 | 221.0 | |||||
X | x 2.5![]() |
36.7, -0.07 | [582] | [670] | ||
Pos.: [462]; QPO: [544]; probably a Be/X-ray sys.: [670]; very hard X-ray spec.: [462,544]. | ||||||
1901+03 | T | 19 01.7 | <2-87 | |||
+03 06.0 | ||||||
x 10![]() |
37.2, -1.4 | [115] | ||||
Pos.: [215]; transient 1971: [115, 214]; hard X-ray spectrum: [115]. | ||||||
J1906+09 | P | 19 05 20 | 0.7 | |||
09 02.5 | 89.17 | |||||
X | x 2![]() |
42.6, +1.04 | [457] | [457] | ||
Pos.: [667]; distance: [457]; likely a supergiant: [457]; not associated with the soft gamma-ray repeater SGR 1900+14: [671]; X-ray spec.: [457]. | ||||||
1907+097 | PT | 19 07 15.1 | star | 16.4, 3.2, - - | 4-275 | 8.38 |
+09 44 54 | B I, 3.3 | 438 | ||||
U, M, A, H | o | 43.7, +0.5 | [625] | [625, 718] | [63] | [441, 508] |
Pos.: [625]; long-term X-ray recod: [563]; 1980 outburst: [459]; orbital parameters: [120, 441];
orbital modulation X-ray flux: [459]; opt. spectrum: [337, 718];
![]() |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
1909+048 | 19 09 21.3 | SS433 | 14.2, 2.1, 0.6 | 2-10 | 13.1 | |
+04 53 54 | V1343 Aql | pec, 2.6 | ||||
U, A, H, G | o, r | 39.7, -2.2 | [407] | [450, 507, 740] | [63] | [145] |
Pos.: [63]; X-ray obs.: [30, 38, 68, 69, 245, 363]; Doppler shift X-ray Fe line: [468, 751]; extended X-ray lobes:
[631, 750]; ![]() |
||||||
1936+541 | 19 31 42.6 | DM+53![]() |
9.8, - -, - - | 0.7 | ||
+53 46 12 | Be, - - | |||||
H | o | 85.9, +15.9 | [698] | [781] | ||
Pos.: [698]; Be star: [739]. | ||||||
J1946+274 | TP | 19 45 38 | <1-25 | 80 | ||
1942+274 | 27 21 38.0 | (2-60 keV) | 15.8 | |||
A, X, B | x 1![]() |
63.2, +1.38 | [666, 743] | [80, 644] | ||
Pos.: [80]; transient Nov.-Dec. 1976: [743]; X-ray flare: [80]; likely a Be: [80]; very hard X-ray spec.: [644]; same as 3A 1942+274 and 1SAX J1946.5+2721: [80, 666]. | ||||||
1947+300 | T | 19 47 36.3 | *3 | 14.2, 0.9, -0.3 | <10-84 | |
+30 04 54 | - -, 1.1 | |||||
K | o | 66.1, +2.1 | [238] | [234, 238] | [60] | |
Pos.: [238]; H![]() |
||||||
J1948+32 | P | 19 48 | 27-53 | 35-70 | ||
32.0 | (20-75 keV) | 18.7 | ||||
C | x | 64.9, +1.8 | [85] | [85] | ||
Pos.: [85]; eccentricity <0.25: [85]; mass function: [85]; probably a Be: [85]. | ||||||
1954+319 | 19 53 46.2 | <1.5-80 | ||||
+31 58 02 | ||||||
U, A | x 15
![]() |
68.4, +1.9 | [119] | [119, 743] | ||
Pos.: [186]; heavily reddened supergiant system (?): [699]. | ||||||
1956+350 | U | 19 56 28.9 | HD 226868 | 8.9, 0.84, -0.26 | 235-1320 | 5. |
Cyg X-1 | +35 03 55 | V1357 Cyg | O9.7 Iab, 1.06 | |||
U, M, A, H, X, G, C | o, r | 71.3, +3.1 | [568] | [116, 158, 518] | [63] | [227] |
Pos.: [63]; hard X- and ![]() ![]() ![]() |
||||||
2030+375 | PT | 20 30 22.1 | *2 | 19.7, 3.3, - - | <0.5-1400 | 46.0 |
+37 28 00 | B0, 3.8 | 41.8 | ||||
Exo, C, B, X, AS | o 2
![]() |
77.2, -1.3 | [107, 496] | [107, 496] | [541] | [508, 541, 662] |
Pos.: [496]; outburst: [541]; rapid X-ray variability: [38]; 0.2 Hz QPO: [12]; opt. spe.: [107, 342]; long-term opt./IR variability: [580]. |
Name(s) | type | RA | Opt. Ctp. | V, B-V, U-B | Fx |
![]() |
DEC | Sp. type, EB-V | ![]() |
![]() |
|||
Pos. |
![]() ![]() |
[FC] | ||||
2030+407 | 20 30 37.6 | V1521 Cyg | I=20.0 | 90-430 | 0.20 | |
Cyg X-3 | +40 47 13 | Wolf-Rayet, 6.3 | ||||
U, M, A, H, CX | r | 79.9, +0.7 | [741] | [493, 719, 741] | [63] | [543] |
Pos.: [63]; distance: [168]; orb. period change: [380, 712]; long-term X-ray obs.: [289, 564];
no X-ray pulsations: [380, 782]; orbital X-ray curve: [55, 377]; aperiodic variability: [38];
X-ray halo: [490]; transient QPO: [713]; radio outbursts: [241, 282, 346, 492];
quiescent radio flares (period 4.95 h?): [491];
radio jet & lobes: [55, 222, 664]; IR phot.: [36, 464, 466]; IR spectra (secondary helium star):
[362, 719]; no X-ray pulsations: [782]; X-ray spectrum: [377, 758]; 1989 review (incl. TeV/PeV
![]() |
||||||
J2030.5+4751 | 20 30 30.6 | SAO 49725 | 9.27, 0.38, -0.65 | 0.04 | ||
47 51 46 | B0.5V-IIIe, - - | |||||
R | x 18
![]() |
85.2, +5.02 | [500] | [500] | [500] | |
Pos.: [500]; strong emission lines: [500]; distance 2.2 kpc: [500]; likely Be/X-ray binary: [500]. | ||||||
J2058+42 | TP | 20 59.0 | 320 | 110 | ||
41 43 | 198 | |||||
C, X | x 4![]() |
83.5, -2.75 | [83] | [775] | [775] | |
Pos.: [775]; orbital period 54 days: [129]; giant outburst in 1995: [775]; most likely a Be/X-ray sys.: [775]; one of two stars likely opt. ctp.: [83]. | ||||||
J2103.5+4545 | P | 21 03 33 | 20 | 12.68 | ||
45 45.0 | 358.61 | |||||
B, X | x 2.5![]() |
87.1, +0.71 | [34] | [34, 301] | ||
Pos.: [301]; distance 4 kpc: [34]; eccentricity 0.4: [34]; HD 200709 not opt. cpt.: [34]; X-ray spe.: [301]. | ||||||
2138+568 | PT | 21 38.0 | star | <6-100 | ||
Cep X-4? | +56 50.0 | B1 | 66.2 | |||
M, H, G | x 7![]() |
99.0, +3.3 | [53a] | [391] | [391, 508] | |
Pos.: [391]; likely Be/X-ray system: [391]; X-ray obs.: [391]; X-ray cyclotron line: [481]; same as Cep X-4(?): [454, 704]; X-ray outburst: [776]; orbital period 23-147.3 days: [776]. | ||||||
2202+501 | 21 59 44.1 | DM+49![]() |
8.8, - -, - - | 0.7 | ||
+49 55 35 | SAO51568 | Be, - - | ||||
H | o | 97.3, -4.0 | [646] | [698] | [781] | |
Pos.: [698]; Be star: [739]. | ||||||
2206+543 | 22 06 07.4 | star | 9.9, 0.2, -0.6 | 0.6-5.5 | ||
+54 16 23 | B1e, 0.5 | 392(?) | ||||
U, M, A, H | o 2
![]() |
100.6, -1.1 | [654] | [654] | [743, 781] | [611] |
Pos.: [654]; X-ray observations: [611]; H![]() |
||||||
2214+589 | 22 24 47.8 | GG3 71 | 11, - -, - - | 0.5 | ||
+60 58 59 | B[e], - - | |||||
H | o | 106.4, +3.1 | [233] | [264, 698] | [781] | |
Pos.: [698]; Be star: [739]; Herbig Ae/Be candidate: [264]; associated with IRAS source 22248+6058: [264]. | ||||||
J2239.3+6116 | T | 22 39 20.90 | star | 15.1, 1.4, - - | 16 | 262 |
+61 16 26.8 | B0V-B2IIIe, 1.4 | |||||
B, A, U, X | o0.3
![]() |
107.7, +2.3 | [327a] | [327a] | [327a] | [327a] |
Pos.: [327a]; distance of 4.4 kpc: [327a]; position coincided with 4U 2238+60 and 3A 2237+608: [327a]. |
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