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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 693851.0, MPI für Astronomie / Publikationen_mpia
The morphologies of massive galaxies at 1<z<3 in the CANDELS-UDS Field: compact bulges, and the rise and fall of massive disks
Authors:Bruce, V. A.; Dunlop, J. S.; Cirasuolo, M.; McLure, R. J.; Targett, T. A.; Bell, E. F.; Croton, D. J.; Dekel, A.; Faber, S. M.; Ferguson, H. C.; Grogin, N. A.; Kocevski, D. D.; Koekemoer, A. M.; Koo, D. C.; Lai, K.; Lotz, J. M.; McGrath, E. J.; Newman, J. A.; van der Wel, A.; Pasquali, Anna; Ferreras, Ignacio
Publisher:Cambridge Univ. Press
Date of Publication (YYYY-MM-DD):2013
Title of Proceedings:The Intriguing Life of Massive Galaxies
Start Page:49
End Page:52
Title of Series:IAU Symp.
Volume (in Series):295
Name of Conference/Meeting:The Intriguing Life of Massive Galaxies
Review Status:Internal review
Audience:Experts Only
Abstract / Description:We have used high-resolution, HST WFC3/IR, near-infrared imaging to conduct a detailed bulge-disk decomposition of the morphologies of ~= 200 of the most massive (M * > 1011 M) galaxies at 1 < z < 3 in the CANDELS-UDS field. We find that, while such massive galaxies at low redshift are generally bulge-dominated, at redshifts 1<z<2 they are predominantly mixed bulge+disk systems, and by z > 2 they are mostly disk-dominated. Interestingly, we find that while most of the quiescent galaxies are bulge-dominated, a significant fraction (25-40%) of the most quiescent galaxies, have disk-dominated morphologies. Thus, our results suggest that the physical mechanisms which quench star-formation activity are not simply connected to those responsible for the morphological transformation of massive galaxies.
Free Keywords:galaxies: elliptical and lenticular; cD; galaxies: evolution; galaxies: high-redshift; galaxies: structure
Comment of the Author/Creator:Date: 2013, July 1, 2013
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2013IAUS..295...49B [ID No:1]
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