dc.contributor.author | Travaglio, C. | |
dc.contributor.author | Gallino, R. | |
dc.contributor.author | Rauscher, T. | |
dc.contributor.author | Dauphas, N. | |
dc.contributor.author | Röpke, F. K. | |
dc.contributor.author | Hillebrandt, W. | |
dc.date.accessioned | 2014-11-17T15:14:30Z | |
dc.date.available | 2014-11-17T15:14:30Z | |
dc.date.issued | 2014-11-10 | |
dc.identifier.citation | Travaglio , C , Gallino , R , Rauscher , T , Dauphas , N , Röpke , F K & Hillebrandt , W 2014 , ' Radiogenic p-isotopes from type Ia supernova, nuclear physics uncertainties, and galactic chemical evolution compared with values in primitive meteorites ' , The Astrophysical Journal , vol. 795 , no. 2 , 141 . https://doi.org/10.1088/0004-637X/795/2/141 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/2299/14770 | |
dc.description.abstract | The nucleosynthesis of proton-rich isotopes is calculated for multi-dimensional Chandrasekhar-mass models of Type Ia supernovae (SNe Ia) with different metallicities. The predicted abundances of the short-lived radioactive isotopes 92Nb, 97, 98Tc, and 146Sm are given in this framework. The abundance seeds are obtained by calculating s-process nucleosynthesis in the material accreted onto a carbon-oxygen white dwarf from a binary companion. A fine grid of s-seeds at different metallicities and 13C-pocket efficiencies is considered. A galactic chemical evolution model is used to predict the contribution of SN Ia to the solar system p-nuclei composition measured in meteorites. Nuclear physics uncertainties are critical to determine the role of SNe Ia in the production of 92Nb and 146Sm. We find that, if standard Chandrasekhar-mass SNe Ia are at least 50% of all SN Ia, they are strong candidates for reproducing the radiogenic p-process signature observed in meteorites. | en |
dc.format.extent | 1023979 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | Atomic processes | |
dc.subject | Galaxy: abundances | |
dc.subject | Meteorites, meteors, meteoroids | |
dc.subject | Nuclear reactions, nucleosynthesis, abundances | |
dc.subject | Supernovae: general | |
dc.title | Radiogenic p-isotopes from type Ia supernova, nuclear physics uncertainties, and galactic chemical evolution compared with values in primitive meteorites | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1088/0004-637X/795/2/141 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |