Newborn spheroids at high redshift: When and how did the dominant, old stars in today's massive galaxies form?

Kaviraj, S; Cohen, S. H.; Ellis, Richard S; Peirani, S; Windhorst, Rogier A; O’Connell, R. W.; Silk, Joe; Whitmore, Bradley; Hathi, Nimish P; Ryan, R E; Dopita, Michael; Frogel, Jay A.; Dekel, A

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Newborn spheroids at high redshift: When and how did the dominant, old stars in today's massive galaxies form?

Date

2013

Authors

Kaviraj, S

Cohen, S. H.

Ellis, Richard S

Peirani, S

Windhorst, Rogier A

O’Connell, R. W.

Silk, Joe

Whitmore, Bradley

Hathi, Nimish P

Ryan, R E

Publisher

Blackwell Publishing Ltd

Abstract

We study ~330 massive (M* > 109.5M⊙), newborn spheroidal galaxies (SGs) around the epoch of peak star formation (1 < z < 3) to explore the high-redshift origin of SGs and gain insight into when and how the old stellar populations that dominate today's U