IC 1370: A merger candidate at the periphery of a z ∼ 0.05 cluster

✍ Scribed by S. Temporin; S. Ciroi

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 174 KB
• Volume: 330
• Category: Article
• ISSN: 0004-6337
• DOI: 10.1002/asna.200911284

✦ Synopsis

Abstract

Recent studies show evidence of galaxy pre‐processing within groups and/or filaments before infall in galaxy clusters. We present VIMOS/IFU observations of IC1370, a galaxy that shows morphological signatures of a recent merger and is located at a projected distance of ∼1.2 Mpc to the center of the cluster II Zw108 at z ∼ 0.05. This galaxy shows two opposite tidal tails, a boxy bulge with a de Vaucouleurs light profile, and a disk component that contributes ∼50 % of the total luminosity. We investigate the history of the galaxy by applying the spectral synthesis technique to the integral field observations and combining the resulting information with morphological and photometric parameters. The same observations allow us to investigate a background (z ∼ 0.09) compact group of 6 galaxies, ofwhich IC 1370 was initially thought to be the central, brightest member (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)