We study the synthesis of lithium isotopes in the hot tori formed around stellar mass black holes by accretion of the companion star. We find that sizable amounts of both stable isotopes Li6 and Li7 can be produced, the exact figures varying with the characteristics of the torus and reaching as much as 10 -2M™ for each isotope. This mass output is enough to contaminate the entire Galaxy at a level comparable with the original, pregalactic amount of lithium and to overcome other sources such as cosmic-ray spallation or stellar nucleosynthesis. © 2012 American Physical Society.
Lithium synthesis in microquasar accretion / Iocco, F.; Pato, M.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:2(2012), p. 021102. [10.1103/PhysRevLett.109.021102]
Lithium synthesis in microquasar accretion
Iocco F.;
2012
Abstract
We study the synthesis of lithium isotopes in the hot tori formed around stellar mass black holes by accretion of the companion star. We find that sizable amounts of both stable isotopes Li6 and Li7 can be produced, the exact figures varying with the characteristics of the torus and reaching as much as 10 -2M™ for each isotope. This mass output is enough to contaminate the entire Galaxy at a level comparable with the original, pregalactic amount of lithium and to overcome other sources such as cosmic-ray spallation or stellar nucleosynthesis. © 2012 American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
