1997A&AS..124...61B


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.25CEST12:02:40

1997A&AS..124...61B - Astron. Astrophys., Suppl. Ser., 124, 61-74 (1997/July-0)

A survey of the stellar rotation in barred galaxies.

BETTONI D. and GALLETTA G.

Abstract (from CDS):

We present stellar velocity- and velocity dispersion- data for 13 SB0 galaxies and one SBa, based on 61 spectra collected during a long-term project developed at ESO. Our primary goal is to provide a database widest as possible for the study of the stellar velocity and velocity dispersion fields and for future modeling. New data are presented for six galaxies, while for the remaining SB0s particular kinematical aspects were already discussed in previous papers. We found the following results: a) emission lines were detected in our spectra only for 4 out of 14 galaxies considered. When present, they reveal a very peculiar kinematics, including counter-rotation, warps or radial flows. b) A new case of gas counter-rotation has been found: NGC 7079. c) The velocity dispersion along the bar has a smoother trend than in the rest of the galaxy. However there is, in general, a similarity between the velocity dispersion trend (decreasing or flat) measured along the bar and that outside it. d) The existence of a waving pattern in the stellar rotation curves of bars is confirmed for the galaxies of our sample seen inclined between 30 and 50°. In addition to this effect, the percentage of non-circular stellar motions present in the barred galaxies studied may reach the 20%.

Abstract Copyright:

Journal keyword(s): galaxies: kinematics and dynamics - galaxies: elliptical and lenticular

VizieR on-line data: <Available at CDS (J/A+AS/124/61): table5 table5.tex>

Simbad objects: 15

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Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 936 GiP 02 27 37.462 -01 09 22.61   11.1   9.98 10.7 ~ 338 0
2 NGC 2217 LIN 06 21 39.7510916579 -27 14 01.656348959   11.04 11.93 9.78 10.5 ~ 153 0
3 NGC 2983 GiG 09 43 41.1168740539 -20 28 38.068699194   12.81 11.68 11.25   ~ 69 0
4 NGC 3271 BiC 10 30 26.481 -35 21 34.34   12.72 11.73 11.03   ~ 69 1
5 NGC 4267 GiG 12 19 45.2726273070 +12 47 53.701823615   12.4       ~ 228 0
6 NGC 4371 GiG 12 24 55.430 +11 42 15.44 12.35 11.79 10.81     ~ 294 1
7 NGC 4442 GiG 12 28 03.893 +09 48 13.03   11.2       ~ 266 0
8 NGC 4546 GiG 12 35 29.506 -03 47 35.62 11.89 11.30 10.32     ~ 206 1
9 NGC 4596 GiP 12 39 55.9543662681 +10 10 34.181826559   12.4       ~ 342 0
10 NGC 4643 LIN 12 43 20.134 +01 58 42.24   11.9       ~ 247 0
11 NGC 4684 GiG 12 47 17.5106270078 -02 43 38.635289496   12.4       ~ 130 0
12 NGC 4754 GiP 12 52 17.563 +11 18 49.18   11.6       ~ 266 0
13 NGC 6684 GiG 18 48 57.8770092771 -65 10 24.316890033   11.34 10.45 9.94   ~ 109 4
14 NGC 6744 GiG 19 09 46.099 -63 51 27.14   9.28 8.25 8.08 9.6 ~ 238 0
15 NGC 7079 GiG 21 32 35.2427054889 -44 04 03.412493925   12.63 11.61 11.08   ~ 114 0

    Equat.    Gal    SGal    Ecl

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