Nucleosynthesis in Outflows from Kerr Black Hole Accretion Disks

Conference · Sat Mar 01 04:00:00 EST 2008

DOI:https://doi.org/10.1063/1.2905566· OSTI ID:931028

Surman, Rebecca ^[1]; Mclaughlin, Gail C. ^[2]; Sabbatino, N. ^[1]; Hix, William Raphael ^[3]

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1. Union College
2. North Carolina State University (NCSU), Raleigh
3. ORNL

Observational evidence suggests long-duration, collapsar-type gamma-ray bursts (GRBs) may have been more common in the early universe. These events are thought to be powered by accretion disks around black holes (AD-BHs). While GRBs require AD-BHs, not all AD-BHs will power bursts and therefore their formation will be more common than GRBs themselves. Outflows from AD-BHs may therefore be important contributors to the nuclear abundances in the oldest stars, particularly for rare species or those not uniformly observed. Here we consider the nucleosynthesis in this environment starting with relativistic disk models of Kerr black holes and following the element synthesis in a parameterized outflow. We present nucleosynthesis results from a range of AD-BH models.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 931028
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
BLACK HOLES
NUCLEOSYNTHESIS
STARS
SYNTHESIS
UNIVERSE