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arXiv · 1506.01380

The sizes of massive quiescent and star forming galaxies at z~4 with ZFOURGE and CANDELS

Caroline M. S. Straatman·Ivo Labbe·Lee R. Spitler·Karl Glazebrook·Adam Tomczak·Rebecca Allen·Gabriel B. Brammer·Michael Cowley·Pieter van Dokkum·Glenn G. Kacprzak·Lalit Kawinwanichakij·Nicola Mehrtens·Themiya Nanayakkara·Casey Papovich·S. Eric Persson·Ryan F. Quadri·Glen Rees·Vithal Tilvi·Kim-Vy Tran·Katherine E. Whitaker
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Abstract

We study the rest-frame ultra-violet sizes of massive (~0.8 x 10^11 M_Sun) galaxies at 3.4 5 x, between 2<z<4. The paucity of compact star-forming galaxies at z~4 and their large rest-frame ultra-violet median sizes suggest that the formation phase of compact cores is very short and/or highly dust obscured.

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Caroline M. S. Straatman, Ivo Labbe, Lee R. Spitler, Karl Glazebrook, Adam Tomczak, Rebecca Allen, Gabriel B. Brammer, Michael Cowley, Pieter van Dokkum, Glenn G. Kacprzak, Lalit Kawinwanichakij, Nicola Mehrtens, Themiya Nanayakkara, Casey Papovich, S. Eric Persson, Ryan F. Quadri, Glen Rees, Vithal Tilvi, Kim-Vy Tran, Katherine E. Whitaker. 2015-06-03. The sizes of massive quiescent and star forming galaxies at z~4 with ZFOURGE and CANDELS. https://doi.org/10.1088/2041-8205%2F808%2F1%2Fl29

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