End point of the rp process on accreting neutron stars

Schatz, H. and Aprahamian, A. and Barnard, V. and Bildsten, L. and Cumming, A. and Ouellette, M. and Rauscher, T. and Thielemann, F. K. and Wiescher, M.. (2001) End point of the rp process on accreting neutron stars. Physical review letters, Vol. 86, H. 16. pp. 3471-3474.

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Official URL: http://edoc.unibas.ch/dok/A5839316

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We calculate the rapid proton (rp) capture process of hydrogen burning on the surface of an accreting neutron star with an updated reaction network that extends up to Xe, far beyond previous work. In both steady-state nuclear burning appropriate for rapidly accreting neutron stars (such as the magnetic polar caps of accreting x-ray pulsars) and unstable burning of type I x-ray bursts, we find that the rp process ends in a closed SnSbTe cycle. This prevents the synthesis of elements heavier than Te and has important consequences for x-ray burst profiles, the composition of accreting neutron stars, and potentially galactic nucleosynthesis of light p nuclei.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:44

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