منابع مشابه
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متن کاملThe Cluster Sz — Mass Correlation
N-body + hydrodynamic simulations of galaxy clusters are used to demonstrate a correlation between galaxy cluster mass and the strength of the Sunyaev–Zel’dovich (SZ) effect induced by the cluster. The intrinsic scatter in the correlaton is larger than seen in the cluster mass — X–ray temperature correlation, but smaller than seen in the correlation between mass (or temperature) and X–ray lumin...
متن کاملNew Territory: SZ Cluster Surveys
The potential of the Sunyaev-Zel’dovich (SZ) effect for cluster studies has long been appreciated, although not yet fully exploited. Recent technological advances and improvements in observing strategies have changed this, to the point where it is now possible to speak of this subject at a meeting devoted to surveys in Cosmology. We will discuss SZ surveys by distinguishing what may be called p...
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The Sunyaev-Zel’dovich (SZ) effect of galaxy clusters is a tool to measure three quantities: Compton parameter, electron temperature, and cluster peculiar velocity. However, a major problem is non-removable (or non-removed) contamination by astrophysical sources which emit in the SZ frequencies. This includes interstellar dust emission, infra-red (IR) galaxies and radio sources. Such contaminat...
متن کاملFinding Clusters in SZ Surveys
We use simulated maps to investigate the ability of high resolution, low noise surveys of the CMB to create catalogues of Clusters of galaxies by detecting the characteristic signature imprinted by the Sunyaev Zeldovich effect. We compute the completeness of the catalogues in our simulations for several survey strategies, and evaluate the relative merit of some Fourier and wavelet based filteri...
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ژورنال
عنوان ژورنال: Psyche: A Journal of Entomology
سال: 1931
ISSN: 0033-2615,1687-7438
DOI: 10.1155/1931/82747