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The physical properties of the intergalactic gas in rich clusters of galaxies

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Abstract

We perform a statistical analysis of the properties of 170 rich clusters of galaxies. We confirm the existence of correlations between the X-ray luminosity and temperature of the cluster intergalactic medium (IGM) and between the velocity dispersion of the galaxies and the X-ray luminosity of the IGM. In addition, we have found a new anti-correlation between the optical luminosity in Hα and the X-ray luminosity of the cluster IGM: log \( \left( {\frac{{L_{H\alpha } }} {{L_ \odot }}} \right) = a - b\log \left( {\frac{{L_x }} {{L_ \odot }}} \right) \). Clusters form sequences with different values of a but similar values of b.

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Authors and Affiliations

  1. Moscow State Pedagogical University, Moscow, Russia

    I. B. Kuvshinova & I. K. Rozgacheva

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  1. I. B. Kuvshinova
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  2. I. K. Rozgacheva
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Original Russian Text © I.B. Kuvshinova, I.K. Rozgacheva, 2010, published in Astronomicheskiĭ Zhurnal, 2010, Vol. 87, No. 8, pp. 760–767.

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Kuvshinova, I.B., Rozgacheva, I.K. The physical properties of the intergalactic gas in rich clusters of galaxies. Astron. Rep. 54, 696–703 (2010). https://doi.org/10.1134/S1063772910080020

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  • DOI: https://doi.org/10.1134/S1063772910080020

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