The Pair Fraction of Massive Galaxies at 0 < z < 3

Abstract

Using a mass-selected ($M_{\star }\ge 10^{11}{M}_{\odot }$) sample of 198 galaxies at 0 < z < 3.0 with HST/NICMOS $H_{160}$-band images from the COSMOS survey, we find evidence for the evolution of the pair fraction above z ~ 2, an epoch in which massive galaxies are believed to undergo significant structural and mass evolution. We observe that the pair fraction of massive galaxies is 0.15 \pm 0.08 at 1.7 < z < 3.0, where galaxy pairs are defined as massive galaxies having a companion of flux ratio from 1:1 to 1:4 within a projected separation of 30 kpc. This is slightly lower, but still consistent with the pair fraction measured previously in other studies, and the merger fraction predicted in halo-occupation modelling. The redshift evolution of the pair fraction is described by a power law F(z) = (0.07 \pm 0.04) * (1+z) ^ (0.6 \pm 0.5). The merger rate is consistent with no redshift evolution, however it is difficult to constrain due to the limited sample size and the high uncertainties in the merging timescale. Based on the merger rate calculation, we estimate that a massive galaxy undergoes on average 1.1 \pm 0.5 major merger from z = 3 to 0. The observed merger fraction is sufficient to explain the number density evolution of massive galaxies, but insufficient to explain the size evolution. This is a hint that mechanism(s) other than major merging may be required to increase the sizes of the massive, compact quiescent galaxies from z ~ 2 to 0.

13 pages, 5 figures, Accepted for publication in the Astrophysical Journal

References in corpus (23)

• The Cosmic Evolution Survey (COSMOS) -- Overview
• EAZY: A Fast, Public Photometric Redshift Code
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• A Semi-Analytic Model for the Co-evolution of Galaxies, Black Holes, and Active Galactic Nuclei
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• Structure and star formation in galaxies out to z=3: evidence for surface density dependent evolution and upsizing
• Size evolution of the most massive galaxies at 1.7<z<3 from GOODS NICMOS survey imaging
• Galaxy Merger Morphologies and Time-Scales from Simulations of Equal-Mass Gas-Rich Disc Mergers
• What do we learn from IRAC observations of galaxies at 2 < z < 3.5?
• The influence of gas on the structure of merger remnants
• Kinemetry of SINS High-Redshift Star-Forming Galaxies: Distinguishing Rotating Disks from Major Mergers
• The Nearly Universal Merger Rate of Dark Matter Haloes in Lambda-CDM Cosmology
• The Redshift Evolution of Wet, Dry, and Mixed Galaxy Mergers from Close Galaxy Pairs in the DEEP2 Galaxy Redshift Survey
• The Majority of Compact Massive Galaxies at z~2 are Disk Dominated
• NICMOS Imaging of DRGs in the HDF-S: A Relation Between Star-Formation and Size at z ~ 2.5
• Ongoing Assembly of Massive Galaxies by Major Merging in Large Groups and Clusters from the SDSS
• The Detection of a Red Sequence of Massive Field Galaxies at z~2.3 and its Evolution to z~0
• The Properties and Evolution of a K-band Selected Sample of Massive Galaxies at z~0.4 - 2 in the Palomar/DEEP2 Survey
• The contribution of star formation and merging to stellar mass buildup in galaxies
• An Improved Model of SiO Maser Emission in Miras
• A Comparison of Galaxy Merger History Observations and Predictions from Semi-Analytic Models
• A deep i-selected multi-waveband galaxy catalogue in the COSMOS field

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