Trapped Radial Oscillations of Gaseous Disks around a Black Hole
Bibliographic Information
- Other Title
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- Trapped Radial Oscillations of Gaseous
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Abstract
type:Article
ln gaseous disks around a black hole, the epicyclic frequency does not increase monotonically inward in the radial direction. The effects of general relativity make it the maximum at 4α, decrease it inward and eventually make it zero at 3a, where a is the Schwarzschild radius. This implies that a low-frequency wave excited in the inner disk is trapped and cannot propagate outward much beyond the region of radius 4α. Characteristics of this trapped oscillation are examined under some approximations. For typical values of parameters, the oscillation period of 100d, which is a typical observed period of time variations of QSOs and Seyfert galaxies, is realized when the mass of the black hole is 10^9-10^10 M_sun.
Journal
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- Publications of the Astronomical Society of Japan
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Publications of the Astronomical Society of Japan 32 377-388, 1980
Astronomical Society of Japan
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Details 詳細情報について
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- CRID
- 1050564287756412800
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- NII Article ID
- 120002108198
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- NII Book ID
- AA00795296
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- ISSN
- 00046264
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- NDL BIB ID
- 2194054
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL
- CiNii Articles