Emission lines were detected in 5 galaxies of the sample: UGC 4508, NGC 1889, NGC 3125, NGC 5237 and UGC 7354. Table 4 lists the detected emission lines of the respective galaxies and their properties. Analysis suggests photoionisation to be the main cause for the line emission, which is typical for H II regions.
The results for the stellar kinematics obtained for all 49 sample galaxies
with absorption lines strong enough for fourier fitting are presented in the
Appendix. The radial velocity and velocity dispersion profiles compare
favorably with previously published measurements (Bender et al. 1994; Davies et al. 1983; Franx et al. 1989;
Binney et al. 1990; Carollo & Danziger 1994a).
The agreement of the kinematical profiles is for the major part within
deviation. For most of the galaxies of our sample no published h3and h4 are available for comparison.
Notes on individual objects:
IC 1729: Asymmetric radial velocity profile, central
depression in the velocity dispersion profile.
NGC 1404: Disk without rotation within 0.1 ,
velocity
profile constant within 1 ,
:
typical example of
decoupled central component kinematics.
UGC 4508: cE? High-intensity emission lines, low continuum.
NGC 1889: In interaction with the disklike galaxy
NGC 1888, merger. The kinematic profiles overlap, resulting in a
velocity dispersion profile and line strength increase outward. H
and
[N II] line emission were detected, possibly from the neighboring
galaxy. Liu & Kennicutt (1995) state NGC 1888 to be a spiral
of the type Sa or Sb with dominent old stellar population and only weak line
emission.
NGC 2663: Very small rotation, unusually high velocity
dispersion. This galaxy is a massive brightest cluster member and
characterized by very anisotropic dynamics (Carollo & Danziger
1994b). The galaxy also features a compact central radio source
(Danziger & Goss 1983; Sadler et al. 1989).
NGC 2271: Kinematically decoupled central component within
1.5'' of the galaxy's center without rotation.
NGC 3078: Slightly asymmetric kinematically decoupled
central component without rotation, also supported by a central depression
in the Mg2 profile (Carollo et al. 1993).
NGC 3125 = AM 1004-294: High intensity emission lines,
low continuum. This is a bright, compact low-redshift galaxy in a
cluster with regular outer isophotes and double knots, it is classified as an
amorphous H II galaxy (Telles et al. 1997) or a blue
compact dwarf (Marlowe et al. 1997).
NGC 3136: Counter-rotation disk 4'' away from the center
of intensity with a diameter of 2''; significance is low.
NGC 3250: Counter-rotating disk 9'' away from the center of
intensity with a diameter of 3'', h3 -v, indicating
decoupled central component kinematics (Bender et al. 1994). The
Mg2 profile of this galaxy also features a central depression
(Carollo et al. 1993).
NGC 3268: This galaxy features rotation only at one side of the
core probably due to the presence of dust. It also has a parsec-scale radio
core (Slee et al. 1994). h3 v, indicating a disk
component (Bender et al. 1994).
NGC 3302: Dust lane along major axis.
NGC 3557B: Possible kinematically decoupled central
component supported by the asymmetric rotational velocity profile and
h3 > 0, low significance because of low spatial resolution.
NGC 3636: E0 with low velocity dispersion
( < 160 km s-1).
NGC 3904: Rotation disk (r<6'') within the center,
h3 -v, indicating decoupled central component kinematics.
NGC 4105, NGC 4106 = AM 1204-292:
Gravitational interaction, reciprocal influence of kinematics. NGC
4105 features decoupled fast rotation within 2'' of the galaxy's center,
supported by the fact that h3 resambles -v; NGC 4106
has an asymmetric rotational velocity profile and h3 > 0. The latter is
classified as lenticular in the ESO-Uppsala Sky Survey with a diffuse, round
arm clearly visible, possibly produced by the interaction. RC3 classifies it
for this reason as SBb, however the color is more consistent with an S0
(Reduzzi & Rampazzo 1996).
NGC 4697: Large E6 galaxy with only slight rotation, it
also features a dust lane of intrinsically circular shape, located in the
equitorial plane. The galaxy is flattened and may be an S0, the spheroidal
part of NGC 4697 may well be a large bulge (Dejonghe
et al. 1996).
NGC 5237 = AM 1334-423: Nearby irregular galaxy,
high-intensity emission lines, low continuum. This galaxy is believed to be a
remnant of a spiral which collided with Centaurus A (NGC 5128)
5 108 yr ago, lost half its disk material, which now forms the
conspicuous ring of gas and dust line in Centaurus A, and was ejected as a
non-rotating shred of dusty, gas-rich disc material which appears as a blue
irregular/starburst dwarf galaxy (Thomson 1992).
NGC 6861 = IC 4949: Unusually high velocity
dispersion at the center, fast rotation. This is a massive S0 galaxy,
possibly influenced by a bar component. This galaxy also features a compact
radio source in its core (Slee et al. 1994).
UGC 7354 = A 1216+04: Only emission lines, no
absorption lines detected. This is a blue compact dwarf (Papaderos et al. 1996) or a starburst galaxy (Campos-Aguilar & Moles 1991).
The ESO-Uppsala Sky Survey designates 25 galaxies as cluster members, 8 galaxies as group members, 3 galaxies as pairs (NGC 4105 with NGC 4106, NGC 5237 with a compact object) and 6 galaxies as field galaxies (IC 4797, NGC 2380, NGC 2865, NGC 2887, NGC 3302, NGC 3585). For 12 galaxies no such data was available.
Table 5 contains the most important measured or derived
spectroscopic quantities of the sample galaxies. These mean
parameters describe the individual galaxies sufficiently well for the
investigation of correlations between different kinematic and non-kinematic
properties and LOSVDs. All mean parameters refer to the galaxy
properties within their effective radii.
galaxy | ||||||||
[km s-1] | [km s-1] | [km s-1 arcsec-1] | [km s-1] | [km s-1] | [km s-1] | |||
I1729 | 1441 3 | 54 4 | 21 8 | 131 7 | 130 9 | 127 18 | -0.03 0.14 | 0.45 0.05 |
N1404 | 1834 4 | 113 10 | 1 9 | 259 5 | 247 4 | 216 10 | -0.17 0.04 | 1.30 0.11 |
N1427 | 1417 3 | 63 10 | 9 5 | 157 4 | 150 8 | 150 8 | -0.05 0.06 | 0.61 0.10 |
N1537 | 1407 2 | 176 8 | 18 4 | 138 4 | 121 4 | 102 11 | -0.26 0.08 | 2.03 0.11 |
N1549 | 1198 2 | 53 12 | 0 3 | 218 3 | 191 4 | 109 11 | -0.50 0.05 | 0.61 0.14 |
N1889 | 2406 6 | 113 13 | 9 18 | 167 11 | -- | -- | -- | -- |
2524 8* | -- | -- | 89.4 19.5* | -- | -- | -- | -- | |
N2271 | 2558 6 | 263 36 | 20 7 | 237 7 | 228 8 | 235 8 | -0.01 0.04 | 1.72 0.24 |
N2325 | 2073 5 | 9 17 | 5 17 | 206 8 | 215 13 | 179 27 | -0.13 0.13 | 0.05 0.09 |
N2380 | 1755 4 | 68 16 | 4 10 | 200 6 | -- | -- | -- | -- |
N2434 | 1358 4 | 41 15 | 7 10 | 189 6 | 170 8 | 152 10 | -0.20 0.06 | 0.89 0.33 |
I2311 | 1636 4 | 30 18 | 7 8 | 211 5 | 189 5 | 143 13 | -0.32 0.07 | 0.50 0.30 |
U4508 | 1865 8* | -- | -- | 44.9 3.1* | -- | -- | -- | -- |
N2663 (major axis) | 1987 8 | 35 31 | 6 19 | 329 11 | -- | -- | -- | -- |
N2663 (PA=98) | 1951 8 | 13 19 | 3 13 | 321 9 | -- | -- | -- | -- |
N2699 | 1715 3 | 73 6 | 17 5 | 152 6 | -- | -- | -- | -- |
N2887 | 2843 6 | 6 20 | 2 19 | 296 8 | 267 7 | 187 9 | -0.37 0.04 | 0.03 0.12 |
N2865 | 2529 4 | 72 15 | 1 10 | 184 5 | 182 5 | 175 8 | -0.05 0.05 | 0.67 0.14 |
N2872 | 3117 9 | 190 50 | 8 16 | 281 13 | 248 10 | 154 29 | -0.45 0.11 | 1.98 0.53 |
N2888 | 2342 3 | 54 9 | 14 6 | 138 7 | 140 7 | 141 9 | 0.02 0.08 | 0.65 0.11 |
N2986 | 2174 7 | 57 12 | 30 10 | 282 13 | 243 14 | 206 31 | -0.27 0.11 | 0.61 0.13 |
N3078 | 2428 5 | 99 8 | 30 18 | 305 6 | 292 9 | 255 16 | -0.16 0.05 | 0.75 0.06 |
N3087 | 2511 4 | 34 8 | 13 5 | 259 6 | 246 7 | 192 24 | -0.26 0.10 | 0.30 0.07 |
N3136 | 1670 5 | 10 16 | 2 16 | 226 5 | 197 5 | 115 12 | -0.49 0.06 | 0.07 0.12 |
N3125 | 1077 11* | -- | -- | 51.9 4.0* | -- | -- | -- | -- |
N3224 | 2898 8 | 94 26 | 25 10 | 216 16 | 206 13 | 172 19 | -0.20 0.11 | 0.94 0.26 |
N3250 | 2704 5 | 132 9 | 21 10 | 298 6 | 262 6 | 188 16 | -0.37 0.06 | 0.81 0.06 |
N3258 | 2646 5 | 39 9 | 14 14 | 357 6 | 319 6 | 267 18 | -0.25 0.05 | 0.29 0.07 |
N3260 | 2248 6 | 211 16 | 39 12 | 174 9 | 147 10 | 106 24 | -0.39 0.14 | 2.71 0.27 |
N3268 | 2575 6 | 211 38 | 47 21 | 197 10 | 177 10 | 122 17 | -0.38 0.09 | 1.91 0.36 |
N3302 | 3742 10 | 18 41 | 12 15 | 379 17 | 309 21 | 148 21 | -0.61 0.06 | 0.10 0.22 |
N3309 | 4024 6 | 17 10 | 12 9 | 282 10 | -- | -- | -- | -- |
N3377 | 591 2 | 86 4 | 25 7 | 135 7 | 115 8 | 81 22 | -0.40 0.17 | 0.88 0.07 |
N3557B | 2723 4 | 124 7 | 32 11 | 201 6 | -- | -- | -- | -- |
N3557 | 2885 7 | 217 11 | 26 7 | 363 14 | 276 7 | 181 17 | -0.50 0.05 | 1.26 0.07 |
N3585 | 1333 2 | 157 3 | 19 4 | 232 3 | 218 3 | 220 8 | -0.06 0.04 | 0.80 0.02 |
N3617 | 1955 3 | 99 20 | 9 4 | 111 8 | 111 7 | 109 20 | -0.02 0.20 | 1.40 0.30 |
N3636 | 1609 4 | 8 14 | 4 6 | 114 10 | -- | -- | -- | -- |
N3904 | 1592 3 | 69 7 | 18 5 | 211 4 | 195 5 | 118 14 | -0.44 0.07 | 0.57 0.06 |
N3923 | 1639 4 | 53 13 | 4 10 | 290 4 | 275 6 | 176 22 | -0.39 0.08 | 0.27 0.07 |
N4033 | 1452 3 | 99 8 | 10 6 | 134 4 | 142 4 | 161 12 | 0.20 0.10 | 0.60 0.05 |
N4105 | 2147 3 | 158 14 | 19 8 | 181 4 | 165 4 | 133 6 | -0.27 0.04 | 1.62 0.15 |
N4106 | 1861 4 | 10 5 | 9 11 | 230 5 | 216 6 | 169 9 | -0.27 0.04 | 0.09 0.05 |
U7354 | 1505 18* | -- | -- | 46.1 4.9* | -- | -- | -- | -- |
N4261 | 2038 5 | 12 16 | 1 13 | 356 5 | 294 4 | 224 14 | -0.37 0.04 | 0.12 0.16 |
N4697 (PA=100) | 1050 3 | 97 7 | 27 4 | 187 6 | 172 9 | 164 12 | -0.12 0.07 | 0.77 0.07 |
N4697 (minor axis) | 1088 3 | 27 10 | 6 4 | 181 4 | 174 4 | 177 11 | -0.02 0.06 | 0.21 0.08 |
N5061 | 1931 3 | 59 13 | 2 7 | 220 4 | 213 4 | 229 13 | 0.04 0.06 | 0.66 0.15 |
N5237 | 302 3* | -- | -- | 48.5 1.0* | -- | -- | -- | -- |
N5903 | 2528 4 | 9 17 | 4 11 | 212 6 | 194 6 | 177 16 | -0.16 0.08 | 0.08 0.17 |
I4797 | 2635 3 | 137 6 | 28 9 | 245 5 | 219 4 | 159 12 | -0.35 0.05 | 0.56 0.03 |
N6861 | 2752 7 | 240 10 | 45 11 | 382 7 | 340 6 | 297 19 | -0.22 0.05 | 0.96 0.04 |
N7029 | 2703 5 | 132 7 | 29 6 | 201 7 | 177 6 | 106 12 | -0.48 0.06 | 0.82 0.05 |
N7049 | 2183 5 | 171 17 | 20 12 | 267 7 | 220 7 | 114 23 | -0.57 0.09 | 1.16 0.12 |
N7196 | 2800 7 | 243 25 | 40 18 | 260 12 | 234 9 | 229 24 | -0.12 0.10 | 1.76 0.19 |
I5297 | 2831 6 | 113 25 | 5 19 | 267 7 | -- | -- | -- | -- |
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