Constraining type Ia supernova models: SN 2011fe as a test case
Friedrich K. Röpke,Friedrich K. Röpke,Markus Kromer,Ivo R. Seitenzahl,Ivo R. Seitenzahl,Ruediger Pakmor,Stuart A. Sim,S. Taubenberger,F. Ciaraldi-Schoolmann,Wolfgang Hillebrandt,Greg Aldering,P. Antilogus,C. Baltay,S. Benitez-Herrera,S. Bongard,C. Buton,A. Canto,F. Cellier-Holzem,M. J. Childress,M. J. Childress,N. Chotard,Y. Copin,H. K. Fakhouri,H. K. Fakhouri,M. Fink,M. Fink,D. Fouchez,E. Gangler,Julien Guy,Stephan Hachinger,Eric Hsiao,J. Chen,M. Kerschhaggl,M. Kowalski,Peter Nugent,K. Paech,Reynald Pain,E. Pecontal,R. Pereira,Saul Perlmutter,Saul Perlmutter,David Rabinowitz,M. Rigault,K. Runge,Clare Saunders,Clare Saunders,G. Smadja,Nao Suzuki,Charling Tao,R. C. Thomas,A. Tilquin,C. Y. Wu,C. Y. Wu +52 more
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In this article, a simulation of a delayed detonation in a Chandrasekhar-mass white dwarf and a violent merger of two white dwarfs (WDs) was used to constrain SN Ia explosion scenarios.Abstract:
The nearby supernova SN 2011fe can be observed in unprecedented detail. Therefore, it is an important test case for Type Ia supernova (SN Ia) models, which may bring us closer to understanding the physical nature of these objects. Here, we explore how available and expected future observations of SN 2011fe can be used to constrain SN Ia explosion scenarios. We base our discussion on three-dimensional simulations of a delayed detonation in a Chandrasekhar-mass white dwarf and of a violent merger of two white dwarfs (WDs)—realizations of explosion models appropriate for two of the most widely discussed progenitor channels that may give rise to SNe Ia. Although both models have their shortcomings in reproducing details of the early and near-maximum spectra of SN 2011fe obtained by the Nearby Supernova Factory (SNfactory), the overall match with the observations is reasonable. The level of agreement is slightly better for the merger, in particular around maximum, but a clear preference for one model over the other is still not justified. Observations at late epochs, however, hold promise for discriminating the explosion scenarios in a straightforward way, as a nucleosynthesis effect leads to differences in the 55Co production. SN 2011fe is close enough to be followed sufficiently long to study this effect.read more
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Nucleosynthesis in Stars and the Chemical Enrichment of Galaxies
TL;DR: In this article, the authors review the recent results of the nucleosynthesis yields of mainly massive stars for a wide range of stellar masses, metallicities, and explosion energies, and provide yields tables and examine how those yields are affected by some hydrodynamical effe...
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Observational Clues to the Progenitors of Type Ia Supernovae
TL;DR: In this article, the authors review the significant recent observational progress in addressing the progenitor problem and consider clues that have emerged from the observed properties of the various proposed proggenitor populations, from studies of SN Ia sites.
Journal ArticleDOI
Three-dimensional delayed-detonation models with nucleosynthesis for Type Ia supernovae
Ivo R. Seitenzahl,F. Ciaraldi-Schoolmann,Friedrich K. Röpke,M. Fink,Wolfgang Hillebrandt,Markus Kromer,Rüdiger Pakmor,Ashley J. Ruiter,Stuart A. Sim,Stefan Taubenberger +9 more
TL;DR: In this article, a suite of fourteen three-dimensional, high-resolution hydrodynamical simulations of delayed-detonation models of Type Ia supernova (SN Ia) explosions is presented.
Journal ArticleDOI
Towards an understanding of Type Ia supernovae from a synthesis of theory and observations
TL;DR: In this article, the authors summarize new observational constraints, address recent progress in modeling Type Ia supernovae by means of three-dimensional hydrodynamic simulations, and discuss several of the still open questions.
Journal ArticleDOI
Three-dimensional pure deflagration models with nucleosynthesis and synthetic observables for type ia supernovae
M. Fink,Markus Kromer,Ivo R. Seitenzahl,F. Ciaraldi-Schoolmann,Friedrich K. Röpke,Stuart A. Sim,Rüdiger Pakmor,Ashley J. Ruiter,Wolfgang Hillebrandt +8 more
TL;DR: In this article, a set of 3D full-star hydrodynamic explosion models, in which the deflagration strength was parametrized using the multispot ignition approach, were computed for weak and intermediate deflagrations with energy release E-nuc less than or similar to 1.1 x 10(51) erg.
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