An infrared study of local galaxy mergers

Alfredo Carpineti, Sugata Kaviraj, Ashley K. Hyde, David L. Clements, Kevin Schawinski, Daniel Darg, Chris J. Lintott

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
31 Downloads (Pure)

Abstract

We combine a large, homogeneous sample of $\sim$3000 local mergers with the Imperial IRAS Faint Source Redshift Catalogue (IIFSCz), to perform a blind far-infrared (FIR) study of the local merger population. The IRAS-detected mergers are mostly ($98\%$) spiral-spiral systems, residing in low density environments, a median FIR luminosity of $10^{11} L_\odot$ (which translates to a median star formation rate of around 15$M_\odot yr^{-1}$). The FIR luminosity -- and therefore the star formation rate -- shows little correlation with group richness and scales with the total stellar mass of the system, with little or no dependence on the merger mass ratio. In particular, minor mergers (mass ratios $
Original languageEnglish
Number of pages7
JournalAstronomy & Astrophysics
Volume577
DOIs
Publication statusPublished - 13 May 2015

Keywords

  • astro-ph.GA

Fingerprint

Dive into the research topics of 'An infrared study of local galaxy mergers'. Together they form a unique fingerprint.

Cite this