Felipe Menanteau and John P. Hughes 2009 ApJ 694 L136 doi:10.1088/0004-637X/694/2/L136
PHYSICAL PROPERTIES OF FOUR SZE-SELECTED GALAXY CLUSTERS IN THE SOUTHERN COSMOLOGY SURVEY
FREE ISSUEFelipe Menanteau and John P. Hughes
Show affiliationsWe present the optical and X-ray properties of four clusters recently discovered by the South Pole Telescope (SPT) using the Sunyaev-Zel'dovich effect (SZE). The four clusters are located in one of the common survey areas of the southern sky that is also being targeted by the Atacama Cosmology Telescope (ACT) and imaged by the CTIO Blanco 4 m telescope. Based on publicly available griz optical images and XMM-Newton and ROSAT X-ray observations, we analyze the physical properties of these clusters and obtain photometric redshifts, luminosities, richness, and mass estimates. Each cluster contains a central elliptical whose luminosity is consistent with SDSS cluster studies. Our mass estimates are well above the nominal detection limit of the SPT and ACT; the new SZE clusters are very likely massive systems with M 
5 × 1014 M ☉.
- Keywords
cosmic microwave background; cosmology: observations; galaxies: clusters: general; galaxies: distances and redshifts; large-scale structure of universe
- PACS
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98.65.-r Galaxy groups, clusters, and superclusters; large scale structure of the Universe
95.80.+p Astronomical catalogs, atlases, sky surveys, databases, retrieval systems, archives, etc.
98.62.Py Distances, redshifts, radial velocities; spatial distribution of galaxies
95.75.De Photography and photometry (including microlensing techniques)
- Subjects
- Dates
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Issue 2 (2009 April 1)
Received 2008 November 21, accepted for publication 2009 February 3
Published 2009 March 13
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Physical Properties of Four SZE-Selected Galaxy Clusters in the Southern Cosmology Survey
Felipe Menanteau and John P. Hughes 2009 ApJ 694 L136
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