2011A&A...526A.114T


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.23CET01:00:11

2011A&A...526A.114T - Astronomy and Astrophysics, volume 526A, 114-114 (2011/2-1)

Formation and evolution of dwarf early-type galaxies in the Virgo cluster. I. Internal kinematics.

TOLOBA E., BOSELLI A., CENARRO A.J., PELETIER R.F., GORGAS J., GIL DE PAZ A. and MUNOZ-MATEOS J.C.

Abstract (from CDS):

We present new medium resolution kinematic data for a sample of 21 dwarf early-type galaxies (dEs) mainly in the Virgo cluster, obtained with the WHT and INT telescopes at the Roque de los Muchachos Observatory (La Palma, Spain). These data are used to study the origin of the dwarf elliptical galaxy population inhabiting clusters. We confirm that dEs are not dark matter dominated galaxies, at least not up to the half-light radius. We also find that the observed galaxies in the outer parts of the cluster are mostly rotationally supported systems with disky morphological shapes. Rotationally supported dEs have rotation curves similar to those of star-forming galaxies of similar luminosity and follow the Tully-Fisher relation. This is expected if dE galaxies are the descendants of low-luminosity star-forming systems that have recently entered the cluster environment and lost their gas due to a ram-pressure stripping event, quenching their star formation activity and transforming into quiescent systems, but conserving their angular momentum.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Virgo - galaxies: dwarf - galaxies: elliptical and lenticular, cD - galaxies: kinematics and dynamics - galaxies: evolution - galaxies: formation

VizieR on-line data: <Available at CDS (J/A+A/526/A114): table2.dat table3.dat>

Simbad objects: 30

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Number of rows : 30

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 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2030 2
2 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11155 1
3 NAME M31 Group GrG 00 47 28.6 +40 17 23           ~ 56 0
4 6dFGS gJ024135.1-081025 G 02 41 35.145 -08 10 24.33   15.96   14.96   ~ 10 0
5 2MASX J02420036+0000531 Sy1 02 42 00.369 +00 00 53.13           ~ 9 0
6 NGC 3073 GiP 10 00 52.042 +55 37 08.17 14.12 14.07 13.40     ~ 175 2
7 NAME Virgo E Cloud GrG 12 03 +12.4           ~ 20 0
8 IC 3025 GiG 12 10 23.189 +10 11 18.62   15.3       ~ 72 0
9 IC 3131 G 12 18 50.9015144446 +07 51 43.052463249   14.8       ~ 56 0
10 2MASX J12201221+0637231 GiG 12 20 12.1860646084 +06 37 23.516738773   15.4       ~ 28 0
11 NGC 4306 GiP 12 22 04.087 +12 47 13.96   14.4       ~ 93 0
12 IC 3328 GiP 12 25 57.964 +10 03 13.37   14.9       ~ 146 0
13 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5952 0
14 IC 3344 GiG 12 26 32.428 +13 34 44.09   15.2       ~ 60 0
15 IC 3369 GiG 12 27 16.9356456625 +16 01 28.142966991   15.1       ~ 45 0
16 NAME Virgo N Cloud GrG 12 28 +16.3           ~ 14 0
17 IC 3381 LSB 12 28 14.854 +11 47 23.69   14.42       ~ 146 1
18 IC 3393 GiG 12 28 41.7049079126 +12 54 57.276857130   14.85 14.24   13.19 ~ 100 1
19 IC 3413 GiG 12 29 22.5162852823 +11 26 01.958802732   15.2       ~ 68 0
20 NAME Vir B GrG 12 29.8 +08 00           ~ 120 0
21 NGC 4482 GiG 12 30 10.3250399673 +10 46 46.084712572   14.2       ~ 153 0
22 NAME Virgo A Cluster ClG 12 30.8 +12 23           ~ 124 0
23 IC 3470 GiP 12 32 23.353 +11 15 47.56   15.0       ~ 105 0
24 NAME Virgo S Cloud GrG 12 34 +06.1           ~ 27 0
25 IC 3510 GiG 12 34 14.8200789724 +11 04 17.430748303   15.2       ~ 56 0
26 IC 3586 GiG 12 36 54.858 +12 31 12.49   15.3       ~ 86 0
27 IC 3652 GiG 12 40 58.5600973863 +11 11 04.081313393   15.1       ~ 104 0
28 IC 3672 GiG 12 42 08.6669706774 +11 45 15.437359667   15.1       ~ 101 0
29 IC 810 GiG 12 42 09.0797612214 +12 35 48.515873417   14.7     12.2 ~ 52 0
30 2MASX J12425631+0340355 GiG 12 42 56.3361318765 +03 40 35.751774971   15.1       ~ 41 0

    Equat.    Gal    SGal    Ecl

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2021.01.23-01:00:11

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