Flow Patterns of Cluster Winds and X-Ray Emissions from Clusters of Galaxies

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概要

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• The flow of intracluster gas injected from galaxies by galactic winds or ram pressure is investigated by numerical time-dependent calculations in the beam scheme. Under a given gravitational field and mass loss rate, there are three flow patterns at the Hubble time, depending on the temperature of the injected gas. If we take a gravitational field of the Coma cluster, lower temperature of the injected gas than 10^6°K and higher temperature than 3 x 108 .K result in wholly inward and wholly outward flow, respectively. For the temperature between them, there appears a partially inward and outward flow that the injected gas flows inwardly within a stagnation point and outwardly outside of it. The highest X-ray luminosity is expected for the case of the pure inflows, because of high central gas density. The pure outflows become steady at the Hubble time and result in the lowest luminosity in spite of higher central temperatures. The partial flows are the intermediate case. It is concluded that the results for the pure inflow or partial flow models are consistent with X-ray observational data of the Coma cluster.

• 理論物理学刊行会の論文
• 1978-03-25

著者

• Kogure Tomokazu

  Department Of Astronomy Kyoto University

• Hirayama Yuzo

  Department Of Physics Hokkaido University

• TANAKA Yasuo

  Faculty of Education, Ibaraki University

• Tanaka Yasuo

  Faculty Of Education Ibaraki University

• TANAKA Yosuke

  Department of Physics, Kyushu Kyouritsu University

• Hirayama Yuzo

  Department of Physics, Hokkaido University

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