Galaxy And Mass Assembly (GAMA): Galaxy close-pairs, mergers, and the future fate of stellar mass

Abstract

We use a highly complete subset of the GAMA-II redshift sample to fully describe the stellar mass dependence of close-pairs and mergers between 10^8 Msun and 10^12 Msun. Using the analytic form of this fit we investigate the total stellar mass accreting onto more massive galaxies across all mass ratios. Depending on how conservatively we select our robust merging systems, the fraction of mass merging onto more massive companions is 2.0%-5.6%. Using the GAMA-II data we see no significant evidence for a change in the close-pair fraction between redshift $z=0.05-0.2$. However, we find a systematically higher fraction of galaxies in similar mass close-pairs compared to published results over a similar redshift baseline. Using a compendium of data and the function ${\gamma }_M=A(1+z)m$ to predict the major close-pair fraction, we find fitting parameters of $A=0.021\pm 0.001$ and $m=1.53\pm 0.08$, which represents a higher low-redshift normalisation and shallower power-law slope than recent literature values. We find that the relative importance of in-situ star-formation versus galaxy merging is inversely correlated, with star-formation dominating the addition of stellar material below Mstar and merger accretion events dominating beyond Mstar. We find mergers have a measurable impact on the whole extent of the GSMF, manifest as a deepening of the dip in the GSMF over the next Gyr and an increase in Mstar by as much as 0.01-0.05 dex.

arXiv commentAccepted for publication in MNRAS: 25 Pages, 21 Figures, 3 Tables

References in corpus (73)

• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colours of galaxies
• The broken hierarchy of galaxy formation
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
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• Galaxy And Mass Assembly: Stellar Mass Estimates
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• The Evolution of Galaxy Mergers and Morphology at z<1.2 in the Extended Groth Strip
• A New Approach to Galaxy Morphology: I. Analysis of the Sloan Digital Sky Survey Early Data Release
• The Major and Minor Galaxy Merger Rates at z < 1.5
• Galaxy Merger Morphologies and Time-Scales from Simulations of Equal-Mass Gas-Rich Disc Mergers
• Dynamical Friction and Galaxy Merging Timescales
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: II. Formation of Red Ellipticals
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• Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)
• Star Formation in Galaxy Mergers with Realistic Models of Stellar Feedback & the Interstellar Medium
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• New Techniques for Relating Dynamically Close Galaxy Pairs to Merger and Accretion Rates : Application to the SSRS2 Redshift Survey
• The Effect of Mass Ratio on the Morphology and Time-scales of Disc Galaxy Mergers
• Galaxy pairs in the Sloan Digital Sky Survey - VI. The orbital extent of enhanced star formation in interacting galaxies
• Dynamically Close Galaxy Pairs and Merger Rate Evolution in the CNOC2 Redshift Survey
• The merger rate of massive galaxies
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• The Millennium Galaxy Catalogue: Dynamically Close Galaxy Pairs and the Global Merger Rate
• On the lifetime of merger features of equal-mass disk mergers
• Two-phase galaxy evolution: the cosmic star-formation histories of spheroids and discs
• Galaxy Mergers at z>1 in the HUDF: Evidence for a Peak in the Major Merger Rate of Massive Galaxies
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• Quantified H i Morphology VII: The Morphology of Extended Disks in UV and H i
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