Abstract
HOT, tenuous gas is revealed, by X-ray observations1, to permeate many clusters of galaxies. If the gas is in hydrostatic equilibrium, it traces the cluster's gravitational potential. X-ray mapping of clusters of galaxies can be used to estimate the total cluster mass, including dark matter, as well as its spatial distribution. Previous observations of X-ray emission from the Virgo cluster, the nearest rich cluster of galaxies, showed it to be concentrated within ∼100 arcmin of M87, the dominant galaxy in the cluster2,3. Because the optical image of the Virgo cluster is ∼ 12° in diameter, the X-ray emission was thought to be associated with M87 rather than with the cluster as a whole. Here we report a preliminary mapping of Virgo made by the Ginga satellite which shows the extended X-ray emission as broadly distributed as the cluster's optical extent. This indicates that the galaxies of the Virgo cluster are immersed in a hot diffuse intracluster medium.
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References
Sarazin, C. L. Rev. Mod. Phys. 58, 1–116 (1986).
Fabricant, D. & Gorenstein, P. Astrophys. J. 267, 535–546 (1983).
Edge, A. C., Stewart, G. C. & Smith, A. Proc. NATO Advanced Study Institute on Hot Thin Plasmas in Astrophysics (ed. Pallavicini, R.) 335–340 (Kluwer, Dordrecht, 1988).
Abell, G. O. Galaxies and the Universe (eds Sandage, A., Sandage, M. & Kristan, J.) 601–645 (University of Chicago Press, 1975).
Makino, F. et al. Astrophys. Lett. 25, 223–233 (1987).
Turner, M. J. L. et al. Publs astr. Soc. Japan 41, 345–372 (1989).
Binggeli, B., Tamman, G. A. & Sandage, A. Astr. J. 94, 251–277 (1987).
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Takano, S., Awaki, H., Koyama, K. et al. Large scale extended X-ray emission from the Virgo cluster of galaxies. Nature 340, 289–290 (1989). https://doi.org/10.1038/340289a0
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DOI: https://doi.org/10.1038/340289a0
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