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A full general relativistic neutrino radiation-hydrodynamics simulation of a collapsing very massive star and the formation of a black hole

Kuroda, Takami and Kotake, Kei and Takiwaki, Tomoya and Thielemann, Friedrich-Karl. (2018) A full general relativistic neutrino radiation-hydrodynamics simulation of a collapsing very massive star and the formation of a black hole. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 477 (1). L80-L84.

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Official URL: https://edoc.unibas.ch/68596/

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Abstract

We study the final fate of a very massive star by performing full general relativistic (GR), three-dimensional (3D) simulation with three-flavour multi-energy neutrino transport. Utilizing a 70 solar mass zero-metallicity progenitor, we self-consistently follow the radiation-hydrodynamics from the onset of gravitational core-collapse until the second collapse of the proto-neutron star (PNS), leading to black hole (BH) formation. Our results show that the BH formation occurs at a post-bounce time of T-pb similar to 300 ms for the 70 M-circle dot star. This is significantly earlier than those in the literature where lower mass progenitors were employed. At a few similar to 10 ms before BH formation, we find that the stalled bounce shock is revived by intense neutrino heating from the very hot PNS, which is aided by violent convection behind the shock. In the context of 3D-GR core-collapse modelling with multi-energy neutrino transport, our numerical results present the first evidence to validate a fallback BH formation scenario of the 70 M-circle dot star.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Thielemann, Friedrich-Karl
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:OXFORD UNIV PRESS
ISSN:0035-8711
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:08 Oct 2019 07:34
Deposited On:08 Oct 2019 07:34

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