Cosmological Implications of the BIMA 30 GHz Sunyaev‐Zeldovich Effect Galaxy Cluster Survey | Zendy

YenTing Lin | Zendy; J. J. Mohr | Zendy

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Cosmological Implications of the BIMA 30 GHz Sunyaev‐Zeldovich Effect Galaxy Cluster Survey

Author(s) -

YenTing Lin,

J. J. Mohr

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/344749

Subject(s) - physics , astrophysics , cosmic microwave background , redshift , hubble's law , galaxy cluster , galaxy , spectral density , cosmic background radiation , south pole telescope , cluster (spacecraft) , cosmic variance , spectral index , observational cosmology , sample variance , anisotropy , astronomy , spectral line , statistics , mathematics , accounting , quantum mechanics , business , variance (accounting) , computer science , programming language

We explore the cosmological implications of 7 deep survey fields observed atthe Berkeley-Illinois-Maryland Association (BIMA) Array with 30 GHz receivers.These observations probe the Cosmic Microwave Background anisotropy on scalescorresponding to l=5500, and an earlier analysis of these data detected nogalaxy clusters. We use numerical cluster simulations and mock observations tocharacterize the cluster detection efficiency for each of the BIMA fields. Withthese detection efficiencies we derive constraints on the cosmologicalparmaters OmegaM and sigma8, ruling out those models which overproduce galaxyclusters. Using only these seven BIMA fields, we calculate a 2sigma upper limitof sigma8 < 1.00OmegaM**(-0.43OmegaM-0.22) for flat models with 0.1

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