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arXiv · 1607.03107

Predicting Quiescence: The Dependence of Specific Star Formation Rate on Galaxy Size and Central Density at 0.5<z<2.5

Katherine E. Whitaker·Rachel Bezanson·Pieter G. van Dokkum·Marijn Franx·Arjen van der Wel·Gabriel Brammer·Natascha M. Forster-Schreiber·Mauro Giavalisco·Ivo Labbe·Ivelina G. Momcheva·Erica J. Nelson·Rosalind Skelton
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Abstract

In this paper, we investigate the relationship between star formation and structure, using a mass-complete sample of 27,893 galaxies at $0.5 $0.5 dex in the central density threshold correlated with quiescence from $z\sim0.7-2.0$. Neither a compact size nor high-$n$ are sufficient to assess the likelihood of quiescence for the average galaxy; rather, the combination of these two parameters together with M$_{\star}$ results in a unique quenching threshold in central density/velocity.

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Katherine E. Whitaker, Rachel Bezanson, Pieter G. van Dokkum, Marijn Franx, Arjen van der Wel, Gabriel Brammer, Natascha M. Forster-Schreiber, Mauro Giavalisco, Ivo Labbe, Ivelina G. Momcheva, Erica J. Nelson, Rosalind Skelton. 2017-02-21. Predicting Quiescence: The Dependence of Specific Star Formation Rate on Galaxy Size and Central Density at 0.5<z<2.5. https://doi.org/10.3847/1538-4357%2Faa6258

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