Evidence for multiple mergers among ultraluminous ir galaxies (ulirgs): remnants of compact groups?

Dec, 1999
5 pages
Published in:
  • Astrophys.J.Lett. 529 (2000) L77
e-Print:

Citations per year

1999200520112017202301234567
Abstract: (arXiv)
In a large sample of ULIRGs imaged with HST, we have identified a significant subsample that shows evidence for multiple mergers. The evidence is seen among two classes of ULIRGs: (1) those with multiple remnant nuclei in their core, sometimes accompanied by a complex system of tidal tails: and (2) those that are in fact dense groupings of interacting (soon-to-merge) galaxies. We conservatively estimate that, in the redshift range 0.05