2 The Nançay polar-ring galaxy sample

Listed in Table 1 are basic optical data for all 74 galaxies observed for our PRG H I survey at either Green Bank, Effelsberg or Nançay. These data, compiled from many sources, by no means form a homogeneous set. The sources used, in order of preference, are the RC3 (de Vaucouleurs et al. 1991), the online NASA/IPAC Extragalactic Database (NED) and Lyon-Meudon Extragalactic Database (LEDA), and the PRC. The optical systemic velocities listed are mean, weighted and corrected values from the LEDA database, with their quoted error, $\sigma_{V}$. Redshifts for B-10, B-13 and B-14 are by Sackett & Jarvis (private comm.). Note that all radial velocities listed in this paper are heliocentric and calculated according to the conventional optical definition ( $V=c(\lambda-\lambda_{0}$)/ $\lambda_{0}$). The total blue magnitudes are sometimes indicative only, as they cannot be assumed to be on the same scale, nor do all represent the true total apparent blue magnitude, $B_{\rm T}$, as defined in, e.g., the RC3; sometimes a magnitude measured within a single aperture is used instead. Neither do the measured diameters represent a homogeneous set of measurements, as they sometimes refer to the size of the faint polar ring, and sometimes to the size of the brighter equatorial disc.

A total of 50 polar ring galaxies and PRG candidates from the PRC were observed in the 21-cm H I line at Nançay (see Table 1). Most were selected following essentially the same criteria used for the Green Bank H I line survey (Paper I):

1. Declination north of -39$^\circ$, and satisfying one or more of the following criteria;
2. Known redshift, less than 8000 kms^-1, or;
3. Blue magnitude brighter than 15.5 mag, or;
4. Member of PRC category A or B (i.e., kinematically confirmed or good candidate).

Of the objects selected using these criteria, 10 were not observed at Nançay, since the properties of their strong H I lines were already well established. These objects are A-03 (NGC 2685), B-11 (UGC 5600), B-17 (UGC 9562), C-13 (NGC 660), C-27 (UGC 4385), C-29 (NGC 2865), C-44 (NGC 5103), C-69 (NGC 7468), D-30 (ESO 341-IG4), and D-35 (NGC 7252).

In addition, we observed one object (A1254-1230) recognized (Schechter et al. 1993) as a good PRG candidate after publication of the PRC, as well as 5 B-category objects of unknown redshift at the start of the Nançay survey: B-8 (AM 0623-371), B-10 (A 0950-2234), B-12 (ESO 503-G17), B-13 (Abell 1631-14) and B-14 (Abell 1644-105).

Note that at Nançay, we could not observe the 8 southernmost objects from the Green Bank survey, due to the smaller range in declination (north of $-39^{\circ}$) for the Nançay telescope, compared to the limit of $\delta=-45^{\circ}$ at Green Bank: A-05 (NGC 4650A), B-27 (ESO 293-IG17), C-11 (NGC 625), C-14 (NGC 979), C-42 (NGC 4672), C-45 (NGC 5128), C-48 (ESO 326-IG6), and D-04 (ESO 296-G11).

 

Table 1: Optical data for the combined polar ring galaxy H I survey sample

PRC	Name	R.A.	Dec.	$V_{\rm opt}$	$\pm\sigma_V$	$B_{\rm T}$	$D_{\rm opt}$
No.		(1950.0)		[km s-1]		[mag]	[']
Kinematically-determined polar-ring galaxies
B-03	IC 1689	01 20 57	32 47 28	4557	60	14.68	0.9
A-01	A 0136-0801	01 36 25	-08 01 24			15.82	1.0
C-13	NGC 660	01 40 21	13 23 20	829	37	12.02	8.3
A-02	ESO 415-G26	02 26 11	-32 06 14	4622	51	14.70	1.3
C-24	UGC 4261	08 07 40	36 58 38	5837	452	14.78	0.9
C-27	UGC 4385	08 21 04	14 54 56	1969		14.51	0.9
A-03	NGC 2685	08 51 41	58 55 30	871	34	12.12	4.5
A-05	NGC 4650A	12 42 05	-40 26 35	2807	100	14.27	1.6
C-45	NGC 5128	13 22 32	-42 45 30	540	66	7.84	25.7
B-17	UGC 9562	14 49 13	35 44 53	1272	60	14.41	1.0
A-06	UGC 9796	15 14 00	43 22 00	5606	60	16.04	1.4
B-19	AM 2020-504	20 20 14	-50 48 48	4963		14.5
B-21	ESO 603-G21	22 48 41	-20 30 42	3150	60	15.50	1.1
Good candidates for polar-ring galaxies
B-01	IC 51	00 43 53	-13 42 58	1758	42	13.75	1.3
B-08	AM 0623-371	06 23 07	-37 19 48			16.5
B-09	UGC 5119	09 34 08	38 19 01	5982	40	14.57	0.7
B-10	A 0950-2234	09 50 35	-22 34 27	14700
B-11	UGC 5600	10 19 17	78 52 51	2790	82	14.19	1.4
B-12	ESO 503-G17	11 24 24	-27 25 48	10312		16.54	1.3
B-13	Abell 1631-14	12 49 54	-15 36 08	16200		16	0.3
	A1254-1230	12 54 20	-12 29 58	5456		16.1	4
B-14	Abell 1644-105	12 54 59	-16 55 06	15800		16	0.3
B-16	NGC 5122	13 21 36	-10 23 39	2939	31	14.5	0.8
	ESO 235-G58	21 03 03	-48 19 19	4262	42	15.14	2.4
B-20	A 2135-2132	21 35 31	-21 32 41			15.90	0.6
B-23	A 2330-3751	23 30 01	-37 51 09			15.88
B-24	A 2333-1637	23 33 05	-16 37 14			16.20	1.3
B-27	ESO 293-IG17	23 53 53	-39 26 42	15300	60	16.17	0.8
Possible candidates for polar-ring galaxies
C-06	NGC 304	00 53 24	23 51 00	4980	53	14.01	1.1
C-09	NGC 442	01 12 05	-01 17 48	5620	50	14.45	1.0
C-11	NGC 625	01 32 55	-41 41 18	391	44	11.71	5.8
C-12	UGC 1198	01 40 58	85 00 38	1207	42	14.80	1.0
C-14	NGC 979	02 29 46	-44 44 38			13.78	1.2
C-18	ESO 358-G20	03 32 53	-32 47 42	1826	50	14.54	1.2
C-25	UGC 4323	08 15 36	67 08 20	3972	55	14.08	1.6
C-26	UGC 4332	08 16 48	21 16 00	5505	94	14.82	1.3
C-28	NGC 2748	09 08 03	76 40 53	1456	58	12.4	3.0
C-29	NGC 2865	09 21 15	-22 56 47	2612	29	12.57	2.5
C-30	UGC 5101	09 32 05	61 34 33	11919	214	14.72	1.1
C-32	IC 575	09 52 04	-06 37 00	5849	95	14.5	1.7
C-33	ESO 500-G41	10 24 34	-23 50 03	3541	35	14.19	1.1
C-34	NGC 3384	10 45 38	12 53 34	735	36	10.85	5.5
C-35	NGC 3414	10 48 31	28 14 24	1445	63	11.96	3.5
C-37	UGC 6182	11 05 08	53 53 13	1255	50	14.12	0.9
C-38	NGC 3934	11 49 38	17 07 44	3697	87	14.28	1.1
C-39	NGC 4174	12 09 54	29 25 00	4010	73	14.31	0.8
C-41	IC 3370	12 24 57	-39 03 42	2935	26	11.99	2.9
C-42	NGC 4672	12 43 30	-41 26 00	3357	62	14.09	2.0
C-44	NGC 5103	13 18 18	43 20 45	1283	50	13.60	1.4
C-46	ESO 576-G69	13 27 22	-20 40 32	5336	60	14.60	1.3:

 

Table 1: continued

PRC	Name	R.A.	Dec.	$V_{\rm opt}$	$\pm\sigma_V$	$B_{\rm T}$	$D_{\rm opt}$
No.		(1950.0)		[km s-1]		[mag]	[']
Possible candidates for polar-ring galaxies - continued
C-48	ESO 326-IG6	14 08 05	-39 52 15	8598	45	15.0	1.7
C-49	NGC 6028	15 59 16	19 29 52	4480	67	14.35	1.3
C-50	UGC 10205	16 04 36	30 14 06	6605	50	14.4	1.4
C-51	NGC 6285	16 57 36	59 03 00	5580	60	14.80	1.2
	NGC 6286	16 57 45	59 00 43	5606	38	14.36	1.3
C-60	ESO 464-G31	21 15 25	-27 33 35			15	0.6
C-64	ESO 343-IG13	21 33 05	-38 46 06	5710	88	14.55	1.5
C-69	NGC 7468	23 00 30	16 20 04	2105	70	14.16	0.9
Systems possibly related to polar-ring galaxies
D-02	NGC 235	00 40 24	-23 48 55	6664	48	14.08	1.3
D-03	ESO 474-IG28	00 45 06	-23 04 24	6780	60	14.91	0.7
D-04	ESO 296-G11	01 17 43	-41 29 55	5056	22	14.41	1.0
D-12	UGC 4892	09 13 32	45 54 34			14.8	1.2
D-14	UGC 5485	10 07 40	65 31 23			15.1	1.2
D-15	NGC 3310	10 35 40	53 45 46	1018	26	10.95	3.1
D-16	NGC 3406	10 48 45	51 17 15	7368	225	14.10	1.1
D-19	NGC 3808	11 38 07	22 42 18	7050	38	14.1	1.7
D-21	UGC 7636	12 27 28	08 12 20	276	60	14.80	1.1
D-22	NGC 4643	12 40 47	02 15 06	1328	67	11.72	3.1
D-23	NGC 4753	12 49 48	-00 55 48	1153	186	10.85	6.0
D-24	ESO 575-G44	12 57 41	-22 25 36	9066	90	13.53	1.1
D-25	UGC 8387	13 18 17	34 24 03	6878	68	14.40	1.5
D-28	NGC 6240	16 50 28	02 29 06	7360	77	13.8	2.1
D-30	ESO 341-IG4	20 37 59	-38 22 20	6032	50	13.38	1.9
D-35	NGC 7252	22 17 58	-24 55 51	4767	77	12.47	1.9
D-43	ESO 510-G13	13 52 14	-26 32 18	3467	94	13.35	1.9
D-44	NGC 520	01 22 00	03 31 54	2172	196	12.05	6.8
D-46	NGC 5544	14 14 56	36 48 11	3106	75	14	1.0

Notes: PRC, Polar Ring Catalog number (Whitmore et al. 1990).