University of Hertfordshire

From the same journal

From the same journal

By the same authors

An infrared study of local galaxy mergers

Research output: Contribution to journalArticlepeer-review


  • Alfredo Carpineti
  • Sugata Kaviraj
  • Ashley K. Hyde
  • David L. Clements
  • Kevin Schawinski
  • Daniel Darg
  • Chris J. Lintott
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Original languageEnglish
Number of pages7
JournalAstronomy & Astrophysics
Publication statusPublished - 13 May 2015


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 $


A. Carpineti, et al., “An infrared study of local galaxy mergers”, Astronomy & Astrophysics, Vol. 577, May 2015. This version of record is available online at: Reproduced with Permission from Astronomy and Astrophysics, © ESO 2016.

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