Feb 7 – 9, 2017
Radisson Hotel Lansing
US/Eastern timezone

Survey of CCSNe based on progenitor dependent explosions

Feb 9, 2017, 11:15 AM
15m
Radisson Hotel Lansing

Radisson Hotel Lansing

111 N Grand Ave, Lansing, MI 48933
Talk [Main Conference] Contributed talk Session 10

Speaker

Dr Tuguldur Sukhbold (The Ohio State University)

Description

The likelihood that a massive star explodes, by any means, is sensitive to the "compactness" of the presupernova core - essentially how fast the density declines outside the iron core. It turns out, perhaps surprisingly, that the compactness is not a monotonic function of the star's birth mass, and, in some mass regions, whether the star explodes or not is almost random. We survey the explosion outcomes from a fine grid of masses by assuming neutrino-driven mechanism and follow the evolution using a large adaptive network. Unlike all of the prior explorations, in this survey we give up the "luxury" of exploding a star in any way we want, instead, the explosion energies, nucleosynthesis yields, light curves and remnant masses are all uniquely tied to the progenitor core structure. While the resulting explosion energies and remnant mass distributions show a good agreement with observations, the nucleosynthetic yields show an interesting deficiency in light s-process elements.

Primary author

Dr Tuguldur Sukhbold (The Ohio State University)

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