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arXiv · 1303.2689

Constraining The Assembly Of Normal And Compact Passively Evolving Galaxies From Redshift z=3 To The Present With CANDELS

P. Cassata·M. Giavalisco·C. C. Williams·Yicheng Guo·Bomee Lee·A. Renzini·H. Ferguson·S. F. Faber·G. Barro·D. H. McIntosh·Yu Lu·E. F. Bell·D. C. Koo·C. J. Papovich·R. E. Ryan·C. J. Conselice·N. Grogin·A. Koekemoer·N. P. Hathi
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Abstract

We study the evolution of the number density, as a function of the size, of passive early-type galaxies with a wide range of stellar masses 10^10 10^10 M_sun), passive (SSFR<10^-2 Gyr^-1) and morphologically spheroidal galaxies at 1.2 2 are all compact or ultra-compact, while normal sized ETGs (meaning ETGs with sizes comparable to those of local counterparts of the same mass) are the most common ETGs only at z<1. The increase of the average size of ETGs at 0<z<1 is primarily driven by the appearance of new large ETGs rather than by the size increase of individual galaxies.

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P. Cassata, M. Giavalisco, C. C. Williams, Yicheng Guo, Bomee Lee, A. Renzini, H. Ferguson, S. F. Faber, G. Barro, D. H. McIntosh, Yu Lu, E. F. Bell, D. C. Koo, C. J. Papovich, R. E. Ryan, C. J. Conselice, N. Grogin, A. Koekemoer, N. P. Hathi. 2013-03-11. Constraining The Assembly Of Normal And Compact Passively Evolving Galaxies From Redshift z=3 To The Present With CANDELS. https://doi.org/10.1088/0004-637x/775/2/106

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