Wehmeyer, Benjamin and Fröhlich, Carla and Coté, Benoit Côté1,7,8, Marco and Pignatari, Marco and Thielemann, Friedrich-Karl. (2020) Could Failed Supernovae Explain the High r-process Abundances in Some Low Metallicity Stars? In: Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15), 31. Kyoto, 011063.
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Abstract
Rapid neutron capture process (r-process) elements have been detected in a large number of metal-poor halo stars. The observed large abundance scatter in these stars suggests that r-process elements have been produced in a site that is rare compared to core-collapse supernovae (CCSNe). Although being rare, neutron star mergers (NSM) alone have difficulties explaining the observations, especially at low metallicities. In this paper, we present a complementary scenario: Using black hole - neutron star mergers (BHNSMs) as additional r-process site. We show that both sites together are able to explain the observed r-process abundances in the Galaxy.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann) |
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UniBasel Contributors: | Thielemann, Friedrich-Karl |
Item Type: | Book Section, refereed |
Book Section Subtype: | Further Contribution in a Book |
Publisher: | The Physical Society of Japan |
Note: | Publication type according to Uni Basel Research Database: Book item |
Language: | English |
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edoc DOI: | |
Last Modified: | 10 May 2021 15:16 |
Deposited On: | 10 May 2021 15:16 |
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