Radiative Avalanche Driven by Spherical Starbursts
We examine a radiative avalanche for the case of spherically distributed sources. A radiative avalanche is a new mechanism, in which the mass-accretion of the nuclear disk is driven via radiation drag exerted bystellar radiation from circumnuclear starburstregions, and which is expected to be a link between starburst activities and AGNs. The results of the present spherical case are qualitatively similar to those of the ringlike case. However, the solid angle subtended by the starburst region is large and the radiation field of the starburst region has no angular momentum, which are in favor for the avalanche model. In addition, an avalanche can take place continuously from the outside to the inside of the starburst region in the sphericalcase.
- PASJ : publications of the Astronomical Society of Japan
PASJ : publications of the Astronomical Society of Japan 49(6), 673-677, 1997-12-01
Astronomical Society of Japan