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Title: Evolution of a proto-neutron star with a nuclear many-body equation of state: Neutrino luminosity and gravitational wave frequencies

Journal Article · · Physical Review D
 [1];  [2];  [3];  [3];  [4];  [3]
  1. Univ. di Roma, Roma (Italy). Dipartimento di Fisica; Stockholm Univ. (Sweden). Astronomy and Oskar Klein Centre
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  3. Univ. di Roma, Roma (Italy). Dipartimento di Fisica
  4. Univ. d'Alacant, Alacant (Spain). Dept. de Fisica Aplicada

In a core-collapse supernova, a huge amount of energy is released in the Kelvin-Helmholtz phase subsequent to the explosion, when the proto-neutron star cools and deleptonizes as it loses neutrinos. Most of this energy is emitted through neutrinos, but a fraction of it can be released through gravitational waves. We model the evolution of a proto-neutron star in the Kelvin-Helmholtz phase using a general relativistic numerical code, and a recently proposed finite temperature, many-body equation of state; from this we consistently compute the diffusion coefficients driving the evolution. To include the many-body equation of state, we develop a new fitting formula for the high density baryon free energy at finite temperature and intermediate proton fraction. Here, we estimate the emitted neutrino signal, assessing its detectability by present terrestrial detectors, and we determine the frequencies and damping times of the quasinormal modes which would characterize the gravitational wave signal emitted in this stage.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357; StronGrHEP-690904; AYA2015-66899-C2-2-P
OSTI ID:
1415938
Alternate ID(s):
OSTI ID: 1377655
Journal Information:
Physical Review D, Vol. 96, Issue 4; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 44 works
Citation information provided by
Web of Science

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Cited By (16)

Relation between gravitational mass and baryonic mass for non-rotating and rapidly rotating neutron stars journal January 2020
Towards asteroseismology of core-collapse supernovae with gravitational-wave observations – I. Cowling approximation journal November 2017
Towards asteroseismology of core-collapse supernovae with gravitational wave observations – II. Inclusion of space–time perturbations journal October 2018
Rotating neutron stars with nonbarotropic thermal profile journal December 2019
The Gravitational Wave Signal from Core-collapse Supernovae journal June 2018
The Induced Surface Tension Contribution for the Equation of State of Neutron Stars journal January 2019
Finite-temperature Extension for Cold Neutron Star Equations of State journal April 2019
Cooling Timescale for Protoneutron Stars and Properties of Nuclear Matter: Effective Mass and Symmetry Energy at High Densities journal June 2019
Observing Supernova Neutrino Light Curves with Super-Kamiokande: Expected Event Number over 10 s journal August 2019
Perturbation Theory of Nuclear Matter with a Microscopic Effective Interaction text January 2017
Heavy Nuclei as Thermal Insulation for Proto-Neutron Stars text January 2017
The induced surface tension contribution for the equation of state of neutron stars text January 2018
Cooling timescale for protoneutron stars and properties of nuclear matter: Effective mass and symmetry energy at high densities text January 2019
Relation between gravitational mass and baryonic mass for non-rotating and rapidly rotating neutron stars preprint January 2019
Rotating neutron stars with non-barotropic thermal profile text January 2019
Determination of properties of protoneutron stars toward black hole formation via gravitational wave observations text January 2019

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