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Title: Temporal and angular variations of 3D core-collapse supernova emissions and their physical correlations

Abstract

Abstract We provide the time series and angular distributions of the neutrino and gravitational wave emissions of 11 state-of-the-art 3D non-rotating core-collapse supernova models and explore correlations between these signatures and the real-time dynamics of the shock and the proto-neutron star (PNS) core. The neutrino emissions are roughly isotropic on average, with instantaneous excursions about the mean inferred luminosity of as much as ±20 per cent. The deviation from isotropy is least for the ‘νμ’-type neutrinos and the lowest mass progenitors. Instantaneous temporal luminosity variations along a given direction for exploding models average ∼2–4 per cent, but can be as high as ∼10 per cent. For non-exploding models, they can achieve ∼25 per cent. The temporal variations in the neutrino emissions correlate with the temporal and angular variations in the mass accretion rate. We witness the lepton-number emission self-sustained asymmetry (LESA) phenomenon in all our models and find that the vector direction of the LESA dipole and that of the inner Ye distribution are highly correlated. For our entire set of 3D models, we find strong connections between the cumulative neutrino energy losses, the radius of the proto-neutron star, and the f-mode frequency of the gravitational wave emissions. When physically normalized, the progenitor-to-progenitor variation in any ofmore » these quantities is no more than ∼10 per cent. Moreover, the reduced f-mode frequency is independent of time after bounce to better than ∼10 per cent. Therefore, simultaneous measurement of gravitational waves and neutrinos from a given supernova event can be used synergistically to extract real physical quantities of the supernova core.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [2]
  1. Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA
  2. Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA, Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540, USA
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of California, San Diego, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Science Foundation (NSF)
OSTI Identifier:
1560359
Alternate Identifier(s):
OSTI ID: 1577800
Grant/Contract Number:  
SC0018297; AC03-76SF00098; AC02-06CH11357; PHY-1144374; AST-1714267; OCI-0725070; ACI-1238993; TG-AST170045; OAC-1809073
Resource Type:
Published Article
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 489 Journal Issue: 2; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United Kingdom
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; astronomy & astrophysics; supernovae: general

Citation Formats

Vartanyan, David, Burrows, Adam, and Radice, David. Temporal and angular variations of 3D core-collapse supernova emissions and their physical correlations. United Kingdom: N. p., 2019. Web. https://doi.org/10.1093/mnras/stz2307.
Vartanyan, David, Burrows, Adam, & Radice, David. Temporal and angular variations of 3D core-collapse supernova emissions and their physical correlations. United Kingdom. https://doi.org/10.1093/mnras/stz2307
Vartanyan, David, Burrows, Adam, and Radice, David. Wed . "Temporal and angular variations of 3D core-collapse supernova emissions and their physical correlations". United Kingdom. https://doi.org/10.1093/mnras/stz2307.
@article{osti_1560359,
title = {Temporal and angular variations of 3D core-collapse supernova emissions and their physical correlations},
author = {Vartanyan, David and Burrows, Adam and Radice, David},
abstractNote = {Abstract We provide the time series and angular distributions of the neutrino and gravitational wave emissions of 11 state-of-the-art 3D non-rotating core-collapse supernova models and explore correlations between these signatures and the real-time dynamics of the shock and the proto-neutron star (PNS) core. The neutrino emissions are roughly isotropic on average, with instantaneous excursions about the mean inferred luminosity of as much as ±20 per cent. The deviation from isotropy is least for the ‘νμ’-type neutrinos and the lowest mass progenitors. Instantaneous temporal luminosity variations along a given direction for exploding models average ∼2–4 per cent, but can be as high as ∼10 per cent. For non-exploding models, they can achieve ∼25 per cent. The temporal variations in the neutrino emissions correlate with the temporal and angular variations in the mass accretion rate. We witness the lepton-number emission self-sustained asymmetry (LESA) phenomenon in all our models and find that the vector direction of the LESA dipole and that of the inner Ye distribution are highly correlated. For our entire set of 3D models, we find strong connections between the cumulative neutrino energy losses, the radius of the proto-neutron star, and the f-mode frequency of the gravitational wave emissions. When physically normalized, the progenitor-to-progenitor variation in any of these quantities is no more than ∼10 per cent. Moreover, the reduced f-mode frequency is independent of time after bounce to better than ∼10 per cent. Therefore, simultaneous measurement of gravitational waves and neutrinos from a given supernova event can be used synergistically to extract real physical quantities of the supernova core.},
doi = {10.1093/mnras/stz2307},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 2,
volume = 489,
place = {United Kingdom},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1093/mnras/stz2307

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Cited by: 17 works
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