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Physical properties of X-ray gas in galaxy cluster CL0024+17

Bulletin of the Crimean Astrophysical Observatory

Abstract

We analyzed the X-ray data obtained by the Chandra telescope for the galaxy cluster CL0024+17 (z = 0.39). The mean temperature of the cluster is estimated (kT = 4.35 +0.51−0.44 keV) and the surface brightness profile is derived. We generated the mass and density profiles for dark matter and gas using numerical simulations and the Navarro-Frenk-White dark matter density profile (Navarro et al., 1995) for a spherically symmetric cluster in which gas is in hydrostatic equilibrium with the cluster field. The total mass of the cluster is estimated to be M 200 = 3.51 +0.38−0.47 × 10 14Sun within a radius of R 200 = 1.24 +0.12−0.17 Mpc of the cluster center. The contribution of dark matter to the total mass of the cluster is estimated as \({{M_{200_{DM} } } \mathord{\left/ {\vphantom {{M_{200_{DM} } } {M_{tot} }}} \right. \kern-\nulldelimiterspace} {M_{tot} }} = 0.89\).

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Correspondence to Iu. V. Babyk.

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Original Russian Text © Iu.V. Babyk, 2012, published in Izvestiya Krymskoi Astrofizicheskoi Observatorii, 2012, Vol. 108, pp. 127–131.

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Babyk, I.V. Physical properties of X-ray gas in galaxy cluster CL0024+17. Bull.Crim. Astrophys. Observ. 108, 87–90 (2012). https://doi.org/10.3103/S0190271712010044

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  • DOI: https://doi.org/10.3103/S0190271712010044

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