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Massive galaxies: born as disks, dead as spheroids

Published online by Cambridge University Press:  17 July 2013

Fernando Buitrago
Fernando Buitrago*
Affiliation:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, EH9 3HJ, U.K. email: [email protected] University of Nottingham, School of Physics & Astronomy, Nottingham, NG7 2RD, U.K.
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Abstract

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Present day massive (Mstellar > 1011 M⊙) galaxies are composed mostly of early-type objects. To ascertain whether this was also the case at higher redshift, we have compiled over a thousand massive galaxies at 0 < z < 3 with HST imaging and spectroscopic redshifts for the majority of them. We have also analyzed using 3D spectroscopy another sample of 10 massive galaxies at z = 1.4. Both works highlight the progressive change between a late-type/peculiar nature at z > 2 and a predominance of early-type morphologies only since z = 1.

Keywords

galaxies: evolutiongalaxies: high-redshiftgalaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S295: The intriguing life of massive galaxies , August 2012 , pp. 171
Copyright
Copyright © International Astronomical Union 2013 

References

Bell, E., et al. 2012, ApJ, 753, 167Google Scholar
Buitrago, F., et al. 2008, ApJ (Letters), 687, L61Google Scholar
Buitrago, F., et al. 2013, MNRAS, 428, 1460Google Scholar