2004A&A...419...35V


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET11:02:43

2004A&A...419...35V - Astronomy and Astrophysics, volume 419, 35-46 (2004/5-3)

NGC 4569: Recent evidence for a past ram pressure stripping event.

VOLLMER B., BALKOWSKI C., CAYATTE V., VAN DRIEL W. and HUCHTMEIER W.

Abstract (from CDS):

Deep 21-cm HI line observations of the Virgo cluster spiral galaxy NGC 4569 have been obtained with the VLA in its D configuration and with the Effelsberg 100-m telescope. A low surface density arm was discovered in the west of the galaxy, whose velocity field is distinct from that of the overall disk rotation. The observed gas distribution, velocity field and velocity dispersion are compared to snapshots of dynamical simulations that include the effects of ram pressure. Two different scenarios were explored: (I) ongoing stripping and (II) a major stripping event that took place about 300Myr ago. It is concluded that only the post-stripping scenario can reproduce the main observed characteristics of NGC 4569. It is not possible to determine if the gas disk of NGC 4569 had already been truncated before it underwent the ram pressure event that lead to its observed HI deficiency.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 4569 - galaxies: interactions - galaxies: ISM - galaxies: kinematics and dynamics

Simbad objects: 7

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Number of rows : 7

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 100 AGN 12 22 54.9318850854 +15 49 20.294302163 10.04 10.05 9.35     ~ 1682 2
2 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1217 2
3 NGC 4438 LIN 12 27 45.652 +13 00 30.92 11.37 11.02 10.17     ~ 586 3
4 NGC 4522 GiG 12 33 39.657 +09 10 29.54   13.6       ~ 334 0
5 M 91 LIN 12 35 26.430 +14 29 46.75   14.63 13.57     ~ 534 0
6 M 90 Sy2 12 36 49.816 +13 09 46.33 10.56 10.26 9.54     ~ 810 1
7 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 510 1

    Equat.    Gal    SGal    Ecl

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2021.03.03-11:02:43

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