Nucleosynthesis in Advective Accretion Disks Around Black Holes

Details Nucleosynthesis in Advective Accretion Disks Around Black Holes Nucleosynthesis in Advective Accretion Disks Around Black Holes

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.211m&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

Study of nucleosynthesis in advective accretion disks was initiated by Chakrabarti et al. (1987). In the present work we do the similar analysis using the state-of-the-art advecting disk model. During the infall, matter temperature and density are generally increased which are first computed. These quantities are used to obtain local changes in composition, amount of nuclear energy released or absorbed, etc. under various inflow parameters. The nuclear energy release in some range of parameters comparable with energy release from other processes. In the cases where the magnetic viscosity is dominant neutron torus may be formed. We also talk about the fate of Li^7 and D during the accretion. Also the outflowing winds produced in the disk could carry the new isotopes produced by nucleosynthesis and contaminate the surroundings. From the degree of contamination, once could pinpoint the inflow parameters.

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