Nucleosynthesis in a Thick Accretion Disk around a 10-SOLAR-MASS Black-Hole

Details Nucleosynthesis in a Thick Accretion Disk around a 10-SOLAR-MASS Black-Hole Nucleosynthesis in a Thick Accretion Disk around a 10-SOLAR-MASS Black-Hole

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...254..191a&link_type=abstract

Astronomy and Astrophysics, Vol.254, NO. FEB(I), P. 191, 1992

Astronomy and Astrophysics

Astrophysics

20

Accretion Disks, Nucleosynthesis, Stars: Structure Of

Scientific paper

Nucleosynthesis in a geometrically thick accretion disk around a 10 Msun black hole is calculated with use of a nuclear reaction network which contains the elements up to Ge. The constructed disk model is in hydrostatical equilibrium supported predominantly by radiation pressure and has a stationary flow with a supercritical accretion rate. The α parameter is used in taking into account viscosity inside the disk. When α becomes as low as 10-10, the maximum temperature reaches 4.2 109 K in the central region of the disk. A considerable amount of elements up to 56Fe can be produced deep inside the disk.

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