dc.creator | Jaffé, Yara L. | |
dc.creator | Verheijen, Marc A. W. | |
dc.creator | Haines, Chris | |
dc.creator | Yoon, Hyein | |
dc.creator | Cybulski, Ryan | |
dc.creator | Montero Castaño, María | |
dc.creator | Smith, Rory | |
dc.creator | Chung, Aeree | |
dc.creator | Deshev, Boris Z. | |
dc.creator | Fernández, Ximena | |
dc.creator | van Gorkom, Jacqueline | |
dc.creator | Poggianti, Bianca M. | |
dc.creator | Yun, Min S. | |
dc.creator | Finoguenov, Alexis | |
dc.creator | Smith, Graham P. | |
dc.creator | Okabe, Nobuhiro | |
dc.date.accessioned | 2017-01-12T20:42:28Z | |
dc.date.available | 2017-01-12T20:42:28Z | |
dc.date.created | 2017-01-12T20:42:28Z | |
dc.date.issued | 2016 | |
dc.identifier | MNRAS 461, 1202–1221 (2016) | |
dc.identifier | 10.1093/mnras/stw984 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/142417 | |
dc.description.abstract | In a hierarchical Universe clusters grow via the accretion of galaxies from the field, groups and even other clusters. As this happens, galaxies can lose and/or consume their gas reservoirs via different mechanisms, eventually quenching their star formation. We explore the diverse environmental histories of galaxies through a multiwavelength study of the combined effect of ram-pressure stripping and group 'processing' in Abell 963, a massive growing cluster at z = 0.2 from the Blind Ultra Deep HI Environmental Survey (BUDHIES). We incorporate hundreds of new optical redshifts (giving a total of 566 cluster members), as well as Subaru and XMM-Newton data from LoCuSS, to identify substructures and evaluate galaxy morphology, star formation activity, and HI content (via HI deficiencies and stacking) out to 3 x R-200. We find that Abell 963 is being fed by at least seven groups, that contribute to the large number of passive galaxies outside the cluster core. More massive groups have a higher fraction of passive and HI-poor galaxies, while low-mass groups host younger (often interacting) galaxies. For cluster galaxies not associated with groups we corroborate our previous finding that HI gas (if any) is significantly stripped via ram-pressure during their first passage through the intracluster medium, and find mild evidence for a starburst associated with this event. In addition, we find an overabundance of morphologically peculiar and/or star-forming galaxies near the cluster core. We speculate that these arise from the effect of groups passing through the cluster (post-processing). Our study highlights the importance of environmental quenching and the complexity added by evolving environments. | |
dc.language | en | |
dc.publisher | Oxford Univ Press | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Galaxies: clusters: general | |
dc.subject | Galaxies: clusters: individual: Abell 963 | |
dc.subject | Galaxias--Evolución | |
dc.subject | Galaxies: interactions | |
dc.subject | Galaxies: peculiar | |
dc.title | BUDHIES – III: the fate of HI and the quenching of galaxies in evolving environments | |
dc.type | Artículo de revista | |