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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3350
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dc.contributor.authorVerheijen, M.A.W.-
dc.contributor.authorVan Gorkom, J.H.-
dc.contributor.authorSzomoru, A.-
dc.contributor.authorDwarakanath, K.S.-
dc.contributor.authorPoggianti, B.M.-
dc.contributor.authorSchiminovich, D.-
dc.date.accessioned2007-11-21T11:16:58Z-
dc.date.available2007-11-21T11:16:58Z-
dc.date.issued2007-10-10-
dc.identifier.citationThe Astrophysical Journal, 2007, Vol. 668, pL9-L13.en
dc.identifier.issnE-ISSN: 1538-4357-
dc.identifier.issnP-ISSN: 0004-637X-
dc.identifier.urihttp://hdl.handle.net/2289/3350-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org. Articles older than 2 years are open to all at the journal site (alternative location)en
dc.description.abstractA pilot study with the powerful new backend of the Westerbork Synthesis Radio Telescope (WSRT) of two galaxy clusters at z=0.2 has revealed neutral hydrogen emission from 42 galaxies. The WSRT probes a total combined volume of 3.4×104 Mpc3 at resolutions of 54×86 kpc2 and 19.7 km s-1, surveying both clusters and the large-scale structure in which they are embedded. In Abell 963, a dynamically relaxed, lensing Butcher-Oemler cluster with a high blue fraction, most of the gas-rich galaxies are located between 1 and 3 Mpc in projection, northeast from the cluster core. Their velocities are slightly redshifted with respect to the cluster, and this is likely a background group. None of the blue galaxies in the core of Abell 963 are detected in H I, although they have colors and luminosities similar to those of the H I detected galaxies in the cluster outskirts and field. Abell 2192 is less massive and more diffuse. Here the gas-rich galaxies are more uniformly distributed. The detected H I masses range from 5×109 to 4×1010 Msolar. Some galaxies are spatially resolved, providing rudimentary rotation curves useful for detailed kinematic studies of galaxies in various environments. This is a pilot for ultradeep integrations down to H I masses of 8×108 Msolar, providing a complete survey of the gas content of galaxies at z=0.2, probing environments ranging from cluster cores to voids.en
dc.format.extent612950 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe University of Chicago Press for the American Astronomical Societyen
dc.relation.urihttp://arxiv.org/abs/arXiv:0708.3853en
dc.relation.urihttp://dx.doi.org/10.1086/522621en
dc.relation.urihttp://adsabs.harvard.edu/abs/2007ApJ...668L...9Ven
dc.rights2007 American Astronomical Societyen
dc.subjectGalaxiesen
dc.subjectClustersen
dc.subjectGeneral, galaxiesen
dc.subjectclusters: individual (Abell 963)en
dc.subjectclusters: individual (Abell 2192)en
dc.titleWSRT Ultradeep Neutral Hydrogen Imaging of Galaxy Clusters at z ~ 0.2: A Pilot Survey of Abell 963 and Abell 2192en
dc.typeArticleen
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