Nucleosynthesis Around Black Holes

Details Nucleosynthesis Around Black Holes Nucleosynthesis Around Black Holes

1999-10-05

arxiv.org/abs/astro-ph/9910080v1

Indian J.Phys. B73 (1999) 917

Astronomy and Astrophysics

Astrophysics

9 Latex pages and 2 Figures. crckapb.sty

Scientific paper

Study of nucleosynthesis in accretion disks around black holes was initiated by Chakrabarti et al. (1987). In the present work we do the similar analysis using the state-of-the-art disk model, namely, Advective Accretion Disks. 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 conditions. 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. The outflowing winds from the disk could carry the new isotopes produced by nucleosynthesis and contaminate the surroundings. From the degree of contamination, one could pinpoint the inflow parameters.

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