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Some fraction of the material ejected in a core collapse supernova explosion may remain bound to the compact remnant, and eventually turn around and fall back. The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative (or is it just me...), Smithsonian Privacy 0000015635 00000 n
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We perform three-dimensional simulations of mixing and fallback for selected non-rotating supernova models to study how explosion energy and asymmetries correlate with the remnant mass, remnant kick, and remnant spin. 0000036428 00000 n
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During the slow phase, high-mass elements beyond the second peak are first made through rapid capture of both protons and neutrons. We investigate the possibility that the energetic Type II supernova OGLE-2014-SN-073 is powered by a fallback accretion following the failed explosion of a massive star. 0000007362 00000 n
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A low electron fraction is not required in this model; however, the detailed final distribution is sensitive to the electron fraction. 0000007858 00000 n
We also perform calculations of nucleosynthesis and LCs of several fallback SN models, and find that a fallback SN from the progenitor with a main-sequence mass of 13 M sun can account for the properties of the peculiar Type Ia supernova SN 2008ha. 0000009349 00000 n
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For that reason, we investigate an alternate model involving the mass ejected by fallback in a supernova explosion, through hydrodynamic and nucleosynthesis calculations. 0000009985 00000 n
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Astrophysical Observatory, Astrophysics - High Energy Astrophysical Phenomena. SUPERNOVA FALLBACK ONTO MAGNETARS AND PROPELLER-POWERED SUPERNOVAE Anthony L. Piro and Christian D. Ott Theoretical Astrophysics, California Institute of Technology, 1200 East California Boulevard, M/C 350-17, Pasadena, CA 91125, USA; piro@caltech.edu, cott@tapir.caltech.edu Received 2011 March 31; accepted 2011 May 14; published 2011 July 13 ABSTRACT We explore fallback … 0000028290 00000 n
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Notice, Smithsonian Terms of 0000029597 00000 n
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The resulting light curves are different and more diverse than previous fallback supernova models which ignored the input of accretion power and produced short-lived, dim transients. 0000010792 00000 n
Agreement NNX16AC86A, Is ADS down? 0000005150 00000 n
Agreement NNX16AC86A, Is ADS down? 0000007036 00000 n
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This rapid phase is followed by a relatively long (>~15 ms) simmering phase at ~2×109 K, which is the thermodynamic consequence of the hydrodynamic trajectory of the turbulent flows in the fallback outburst. 0000012566 00000 n
The conditions for the leading r-process site candidate, neutrino-driven winds, cannot be reproduced self-consistently in current supernova models.
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