Galaxy pairs as a probe for mergers at z ~ 2

A.W.S. Man, Andrew Wasmuth Zirm, Sune Toft

Abstract

In this work I investigate the redshift evolution of pair fraction of a sample of 196 massive galaxies from z = 0 to 3, selected from the COSMOS field. We find that on average a massive galaxy undergoes ~ 1.1 \pm 0.5 major merger since z = 3. I will review the current limitations of using the pair fraction as a probe for quantifying the impact of mergers on galaxy evolution. This work is based on the paper Man et al. (2011).
Original languageEnglish
Title of host publication"Galaxy Mergers in an Evolving Universe"
Number of pages4
Place of PublicationHualien, Taiwan
Publication date18 Dec 2011
Publication statusPublished - 18 Dec 2011

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