Turbulence Generation by Shock-Acoustic-Wave Interaction in Core-Collapse Supernovae

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dc.contributor.author Abdikamalov, Ernazar
dc.contributor.author Huete Ruiz De Lira, Cesar
dc.contributor.author Nussupbekov, Ayan
dc.contributor.author Berdibek, Shapagat
dc.date.accessioned 2019-02-11T11:23:53Z
dc.date.available 2019-02-11T11:23:53Z
dc.date.issued 2018-05-07
dc.identifier.bibliographicCitation Abdikamalov, E., Huete, C., Nussupbekov, A., Berdibek, S. (2018). Turbulence Generation by Shock-Acoustic-Wave Interaction in Core- Collapse Supernovae. Particles, 1 (1), pp. 97-110.
dc.identifier.issn 2571-712X
dc.identifier.uri http://hdl.handle.net/10016/28041
dc.description.abstract Convective instabilities in the advanced stages of nuclear shell burning can play an important role in neutrino-driven supernova explosions. In our previous work, we studied the interaction of vorticity and entropy waves with the supernova shock using a linear perturbations theory. In this paper, we extend our work by studying the effect of acoustic waves. As the acoustic waves cross the shock, the perturbed shock induces a field of entropy and vorticity waves in the post-shock flow. We find that, even when the upstream flow is assumed to be dominated by sonic perturbations, the shock-generated vorticity waves contain most of the turbulent kinetic energy in the post-shock region, while the entropy waves produced behind the shock are responsible for most of the density perturbations. The entropy perturbations are expected to become buoyant as a response to the gravity force and then generate additional turbulence in the post-shock region. This leads to a modest reduction of the critical neutrino luminosity necessary for producing an explosion, which we estimate to be less than ~5%.
dc.description.sponsorship Funding from Nazarbayev University ORAU grant SST 2015021 and Ministry of Education and Science of the Republic of Kazakhstan state-targeted program BR05236454 is acknowledged.
dc.format.extent 15
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2018 by the authors; licensee MDPI, Basel, Switzerland.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Hydrodynamics
dc.subject.other Shock waves
dc.subject.other Turbulence
dc.subject.other General
dc.title Turbulence Generation by Shock-Acoustic-Wave Interaction in Core-Collapse Supernovae
dc.type article
dc.subject.eciencia Ingeniería Industrial
dc.identifier.doi https://doi.org/10.3390/particles1010007
dc.rights.accessRights openAccess
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 97
dc.identifier.publicationissue 1
dc.identifier.publicationlastpage 110
dc.identifier.publicationtitle Particles
dc.identifier.publicationvolume 1
dc.identifier.uxxi AR/0000022407
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