{"paper":{"title":"The radial and azimuthal profiles of Mg II absorption around 0.5 < z < 0.9 zCOSMOS galaxies of different colors, masses and environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Bongiorno, A. Cappi, A. Cimatti, A. Iovino, A. Koekemoer, A. Renzini, B. Garilli, C. Diener, C. Knobel, C. Lopez-Sanjuan, C. Maier, C.M. Carollo, C. Scarlata, D. Vergani, E. Perez Montero, E. Zucca, F. Lamareille, G. Coppa, G. Zamorani, H.J. McCracken, I. Balestra, J. -F. Le Borgne, J. -P. Kneib, J. Silverman, K. Caputi, K. Kovac, L. Barnes, L. de Ravel, L. Pozzetti, L. Tasca, L. Tresse, M. Bolzonella, M. Mignoli, M. Moresco, M. Scodeggio, M. Tanaka, N. Welikala, O. Cucciati, O. Le Fevre, P. Franzetti, P. Kampczyk, P. Nair, P. Oesch, R. Bordoloi, R. Pello, S. Bardelli, S. de la Torre, S. J. Lilly, T. Contini, V. Le Brun, V. Mainieri, V. Presotto, Y. Peng","submitted_at":"2011-06-03T12:03:31Z","abstract_excerpt":"We map the radial and azimuthal distribution of Mg II gas within 200 kpc (physical) of 4000 galaxies at redshifts 0.5 < z < 0.9 using co-added spectra of more than 5000 background galaxies at z > 1. We investigate the variation of Mg II rest frame equivalent width as a function of the radial impact parameter for different subsets of foreground galaxies selected in terms of their rest-frame colors and masses. Blue galaxies have a significantly higher average Mg II equivalent width at close galactocentric radii as compared to the red galaxies. Amongst the blue galaxies, there is a correlation be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.0616","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}