A candidate proto-cluster core galaxy at z = 3.03

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/95251

Title: A candidate proto-cluster core galaxy at z = 3.03
Author(s): Cooke, J.; Barton, E. J.; Bullock, J. S.; Wolfe, A. M.
Abstract: We present a discovery of a bright (R = 22) Lyman break galaxy (LBG) at z = 3.03 that appears to be a massive LBG in the late stages of merging. Deep images reveal that this system has multiple bright peaks angularly separated by 0.6 arcsec, corresponding to 20 h_70 kpc. We have obtained moderate-resolution, high-signal-to-noise ratio longslit spectra with Keck using multiple position angles. The individual spectra show variation with position and appear to sample different sightlines through the IGM. The composite spectrum displays two strong Ly-α emission peaks separated by 550 km/sec along with complex absorption-line profiles that exhibit gas absorbing up to 2000 km/sec.
Publication type: Conference paper
Source: Bulletin of the American Astronomical Society: incorporating proceedings of the 211th American Astronomical Society Meeting, Austin, Texas, United States, 07-11 January 2008, Vol. 39, p. 775
Publication year: 2007
Keyword(s): IGM; LBG; Lyman break galaxies
Publisher: American Astronomical Society
Publisher URL: http://aas.org/meetings/aas211
Copyright: Copyright © 2007 The American Astronomical Society. All rights reserved. The American Astronomical Society does not allow institutions to archive either the accepted manuscript or the published version of the article.