2002MNRAS.332...65D

Query : 2002MNRAS.332...65D

2002MNRAS.332...65D - Mon. Not. R. Astron. Soc., 332, 65-77 (2002/May-1)

A fast bar in the post-interaction galaxy NGC 1023.

DEBATTISTA V.P., CORSINI E.M. and AGUERRI J.A.L.

Abstract (from CDS):

We measured the bar pattern speed, Ωp, of the SB0 galaxy NGC 1023 using the Tremaine-Weinberg method with stellar-absorption slit spectroscopy. The morphology and kinematics of the Hi gas outside NGC 1023 suggest it suffered a tidal interaction, sometime in the past, with one of its dwarf companions. At present, however, the optical disc is relaxed. If the disc had been stabilized by a massive dark matter halo and formed its bar in the interaction, then the bar would have to be slow. We found Ωp =5.0±1.8km.s–1.arcsec–1, so that the bar ends near its corotation radius. It is therefore rotating rapidly and must have a maximum disc.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: haloes - galaxies: individual: NGC 1023 - galaxies: interactions - galaxies: kinematics and dynamics - galaxies: photometry

Simbad objects: 19

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Number of rows : 19
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 299 0
2 NGC 936 EmG 02 27 37.462 -01 09 22.61   11.1   9.98 10.7 ~ 374 0
3 NAME NGC 1023 Group GrG 02 39 37.9 +39 20 51           ~ 81 0
4 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
5 NGC 1023A GiG 02 40 37.1 +39 03 33       14.52   ~ 52 1
6 NGC 1073 EmG 02 43 40.598 +01 22 33.13   11.3   11.3 11.8 ~ 335 0
7 NGC 1300 Sy2 03 19 41.0462219928 -19 24 40.187565432   11.16 10.42 9.90 10.7 ~ 616 0
8 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
9 * del Lep PM* 05 51 19.2960278488 -20 52 44.730655825 5.54 4.83 3.85 2.99 2.43 K0IIIbFe-1.5CH0.5 222 0
10 * nu.02 CMa PM* 06 36 41.0376788353 -19 15 21.169452656 5.96 5.011 3.91 3.13 2.61 K1.5III-IVFe1 282 1
11 * 17 Mon * 06 47 19.8301708488 +08 02 14.122870224 7.82 6.17 4.77 3.74 3.04 K4III 125 0
12 * 20 Mon PM* 07 10 13.6815026472 -04 14 13.585055244 6.73 5.95 4.92 4.13 3.61 K0III 162 0
13 M 109 GiG 11 57 35.9631479640 +53 22 29.006082336   10.94   9.57   ~ 483 0
14 NGC 4123 AGN 12 08 11.1187718376 +02 52 41.781736956   13.1       ~ 352 2
15 NGC 4596 GiP 12 39 55.9544722920 +10 10 34.185047628   12.4       ~ 387 0
16 * 20 Boo PM* 14 19 45.2351074992 +16 18 25.010494488       4.1   K3III 163 0
17 NGC 5850 LIN 15 07 07.6828131840 +01 32 39.513281352   11.5   10.79 11.1 ~ 330 1
18 NGC 7079 GiG 21 32 35.2418074440 -44 04 03.412507188   12.63 11.61 11.08   ~ 128 0
19 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 783 2

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