The Morphologies of Massive Galaxies at 1 <z <3 in the CANDELS-UDS Field

V. A. Bruce, J. S. Dunlop, M. Cirasuolo, R. J. McLure, T. A. Targett, E. F. Bell, D. J. Croton, A. Dekel, S. M. Faber, H. C. Ferguson, N. A. Grogin, D. D. Kocevski, A. M. Koekemoer, D. C. Koo, K. Lai, J. M. Lotz, E. J. McGrath, J. A. Newman, A. van der Wel

Research output: Working paper


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_star > 10^11 M_solar) galaxies at 12 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.
Original languageEnglish
Publication statusPublished - 1 Jan 2013


  • Astrophysics - Cosmology and Extragalactic Astrophysics


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