Sunyaev-Zel’dovich observations of a statistically complete sample of galaxy clusters with OCRA-p
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چکیده
منابع مشابه
Sunyaev-Zeldovich Observations of Massive Clusters of Galaxies
We present detections of the Sunyaev-Zeldovich Effect (SZE) at 150GHz and 275GHz for the X-ray luminous z=0.299 cluster 1E0657-67. These observations were obtained as part of an X-ray, weak lensing, and SZE survey of nearby X-ray bright clusters. The SZE maps were made with the ACBAR (150, 210, 275 GHz) bolometer array installed at the Viper telescope located at the South Pole. We also present ...
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Sunyaev-Zeldovich decrements in the temperature of the Cosmic Microwave Background (CMB) are produced by Thomson scattering of the CMB photons by the confined hot electrons in the Intra-Cluster Medium encountered along the line-of-sight. In this paper, we propose an alternate physical process that can produce detectable thermal and kinematic Sunyaev-Zeldovich decrements around quasars or quasar...
متن کاملSunyaev - Zeldovich decrements with no clusters ? 3
In this letter, we propose an explanation to account for the source of the SunyaevZeldovich decrement measurement reported by Jones et. al (1997) in the direction of the distant quasar pair PC1643+4631 A & B. Invoking energetic quasar winds, we argue that this decrement is the kinematic signature of the baryons that have been concentrated by the mechanical outflow from the two quasars which are...
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In order to assess the potential of future microwave anisotropy space experiments for detecting clusters by their Sunyaev-Zeldovich (SZ) thermal effect, we have simulated maps of the large scale distribution of their Compton parameter y and of the temperature anisotropy ∆T/T induced by their proper motion. Our model is based on a predicted distribution of clusters per unit of redshift and flux ...
متن کاملThe Impact of Galaxy Formation on the Sunyaev-zeldovich Effect of Galaxy Clusters
We study the effects of radiative cooling and galaxy formation on the Sunyaev-Zel’dovich (SZ) observable-mass relations using high-resolution cosmological simulations. The simulations of eleven individual clusters spanning a decade in mass are performed with the shock-capturing eulerian adaptive mesh refinement N-body+gasdynamics ART code. To assess the impact of galaxy formation, we compare tw...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2011
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2011.19241.x