Gravitational instability of a homogeneous gas cloud with radiation

Details Gravitational instability of a homogeneous gas cloud with radiation Gravitational instability of a homogeneous gas cloud with radiation

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.164..329v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 164, no. 2, Feb. 1990, p. 329-331.

Astronomy and Astrophysics

Astrophysics

6

Cosmic Plasma, Gravitational Effects, Plasma Clouds, Radiation Pressure, Gas Pressure, H Ii Regions, Stability, Stellar Interiors, Wavelengths

Scientific paper

Since radiative pressure in a star interior is usually small relative to gas pressure, the interior of large, hot plasma clouds should be an important consideration in the study of radiative processes. The present consideration of the influence of radiative processes on the gravitational instability of an inviscid plasma cloud obtains an instability criterion from a dispersion equation which indicates that radiation pressure (1) stabilizes the system, and that (2) the critical wavelength is longer than that envisioned by Jeans (1902).

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