Extraction of cluster parameters with future Sunyaev-Zel'dovich observations
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Extraction of cluster parameters with future Sunyaev-Zel'dovich observations

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Extraction of cluster parameters with future Sunyaev-Zel'dovich observations

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Aghanim, Nabila; Hansen, Steen H.; Pastor Carpi, Sergio; Semikoz, Dmitry V.
Aquest document és un/a article, creat/da en: 2003
The Sunyaev-Zel'dovich (SZ) effect of galaxy clusters is characterized by three parameters: Compton parameter, electron temperature and cluster peculiar velocity. In the present study we consider the problem of extracting these parameters using multi-frequency SZ observations only. We show that there exists a parameter degeneracy which can be broken with an appropriate choice of frequencies. As a result we discuss the optimal choice of observing frequencies from a theoretical point of view. Finally, we analyze the systematic errors (of the order micro K) on the SZ measurement introduced by finite bandwidths, and suggest a possible method of reducing these errors.

    Aghanim, Nabila Hansen, Steen H. Pastor Carpi, Sergio Semikoz, Dmitry V. 2003 Extraction of cluster parameters with future Sunyaev-Zel'dovich observations Journal Of Cosmology And Astroparticle Physics 05 007-1 007-20
http://dx.doi.org/10.1088/1475-7516/2003/05/007
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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