Dynamical Ablation of Interstellar Gas from a Disk Galaxy
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概要
- 論文の詳細を見る
The dynamical interaction between the intergalactic gas and the interstellar gas of a disk galaxy is calculated by a time-dependent, two-dimensional hydrodynamic code. The case where the velocity vector of intergalactic gas is parallel to the rotational axis of the galaxy is examined. The gas ablation from the disk is completed within 10^8 years, and the small gas disk remains at the bulge of a disk galaxy. A simple analytic expression for the radius of this remnant gas disk is derived from the calculated results, and the gas ablation time is estimated. It is concluded the spiral galaxies are transformed or SO ot anemic galaxies under the general conditions of intergalactic gas within a rich cluster of galaxies.
- 理論物理学刊行会の論文
- 1980-09-25
著者
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Ikeuchi Satoru
Department Of Astrophysics Nagoya University
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Toyama Kiyotaka
Department Of Physics Hokkaido University
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TOYAMA Kiyotaka
Department of Physics, Hokkaido University
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