Constraints on r-process nucleosynthesis in accretion disks

Details Constraints on r-process nucleosynthesis in accretion disks Constraints on r-process nucleosynthesis in accretion disks

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.350..403j&link_type=abstract

Nature (ISSN 0028-0836), vol. 350, April 4, 1991, p. 403, 404. Research supported by NSF and NASA.

Astronomy and Astrophysics

Astronomy

Accretion Disks, Interstellar Matter, Nuclear Fusion, Abundance, Black Holes (Astronomy), High Temperature Gases, Nuclear Reactions, Stellar Envelopes

Scientific paper

Systems in which accretion drives an outflow from a region near a compact object may enrich the interstellar medium in r-process elements. A detailed assessment of the efficacy of this mechanism for the r-process is presented here, taking into account the constraints imposed by typical accretion-disk conditions. It is concluded that r-process elements are unlikely to have been made in this way, largely because the total production is too low, by a factor of about 100,000, to explain the observed abundances.

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