C.D.S. - SIMBAD4 rel 1.7 - 2021.04.18CEST11:38:06

2000ApJ...535L..71B - Astrophys. J., 535, L71-L74 (2000/June-1)

The effect of a nonthermal tail on the Sunyaev-Zeldovich effect in clusters of galaxies.


Abstract (from CDS):

We study the spectral distortions of the cosmic microwave background radiation induced by the effect in clusters of galaxies when the target electrons have a modified Maxwell-Boltzmann distribution with a high-energy nonthermal tail. Bremsstrahlung radiation from this type of electron distribution may explain the suprathermal X-ray emission observed in some clusters such as the Coma Cluster and A2199 and serve as an alternative to the classical but problematic inverse Compton scattering interpretation. We show that the Sunyaev-Zeldovich effect can be used as a powerful tool to probe the electron distribution in clusters of galaxies and discriminate among these different interpretations of the X-ray excess. The existence of a nonthermal tail can have important consequences for cluster-based estimators of cosmological parameters.

Abstract Copyright:

Journal keyword(s): Cosmology: Theory - Galaxies: Clusters: General

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4338 2
2 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1118 1
3 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 423 1

    Equat.    Gal    SGal    Ecl

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