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2002MNRAS.331....1C - Mon. Not. R. Astron. Soc., 331, 1-6 (2002/March-3)
Detection of a cosmic microwave background decrement towards a cluster of mJy radio sources.
COTTER G., BUTTERY H.J., RAWLINGS S., CROFT S., HILL G.J., GAY P., DAS R., DRORY N., GRAINGE K., GRAINGER W.F., JONES M.E., POOLEY G.G. and SAUNDERS R.
Abstract (from CDS):
The cosmic microwave background (CMB) decrement is consistent with the Sunyaev-Zel'dovich (SZ) effect of a massive cluster of galaxies, which if modelled as a spherical King profile of core radius θC=20arcsec has a central temperature decrement of 900µK. The magnitudes and colours of the galaxies are consistent with those of old ellipticals at z ∼1. We therefore conclude that TOC J0233.3+3021 is a massive, high redshift cluster. These observations add to the growing evidence for a significant population of massive clusters at high redshift, and demonstrate the effectiveness of combining searches for active galactic nuclei (AGN) `signposts' to clusters with the redshift-independence of the SZ effect.
Abstract Copyright: 2002 Blackwell Science Ltd
Journal keyword(s): galaxies: active - galaxies: clusters: general - cosmic microwave background - cosmology: observations
Nomenclature: Fig.2: [CBR2002] A (Nos A-E). [CBR2002] JHHMMSS.ss+DDMMSS.ss N=8.
CDS comments: TOC J0233.3+3021 = ClG J0233+3021
Simbad objects: 12
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