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2008MNRAS.388..465R - Mon. Not. R. Astron. Soc., 388, 465-486 (2008/August-1)
Ram-pressure stripping of disc galaxies orbiting in clusters - II. Galactic wakes.
ROEDIGER E. and BRUGGEN M.
Abstract (from CDS):
For a sensitivity limit of in projected gas density, we find typical tail lengths of. Such long tails are seen even at large distances (0.5 to) from the cluster centre. At this sensitivity limit, the tails show little flaring, but a width similar to the gas disc's size.
Morphologically, we find good agreement with the HI tails observed in the Virgo cluster by Chung et al. 2007. However, the observed tails show a much smaller velocity width than predicted from the simulation. The few known X-ray and Hα tails are generally much narrower and much straighter than the tails in our simulations. Thus, additional physics like a viscous intracluster medium (ICM), the influence of cooling and tidal effects may be needed to explain the details of the observations.
We discuss the hydrodynamical drag as a heat source for the ICM but conclude that it is not likely to play an important role, especially not in stopping cooling flows.
Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS
Journal keyword(s): galaxies: evolution - galaxies: individual: NGC 4388 - intergalactic medium - galaxies: ISM - galaxies: spiral
Simbad objects: 12
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