Warm dense matter and cooling of supernovae remnants
Abstract We study the thermal effects on the nuclear matter (NM) properties such as binding energy, incompressibility, free symmetry energy and its coefficients using NL3, G3 and IU-FSU parameter sets of relativistic mean-field models. These models being consistent with the properties of cold NM, ha...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
SpringerOpen
2020-08-01
|
Series: | European Physical Journal C: Particles and Fields |
Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8353-4 |
id |
doaj-d7dc977eaaf94d07958f16b5e2e37ed8 |
---|---|
record_format |
Article |
spelling |
doaj-d7dc977eaaf94d07958f16b5e2e37ed82020-11-25T03:54:22ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-08-0180811410.1140/epjc/s10052-020-8353-4Warm dense matter and cooling of supernovae remnantsAnkit Kumar0H. C. Das1S. K. Biswal2Bharat Kumar3S. K. Patra4Institute of Physics, Sachivalaya MargInstitute of Physics, Sachivalaya MargDepartment of Astronomy, Xiamen UniversityDepartment of Physics & Astronomy, National Institute of TechnologyInstitute of Physics, Sachivalaya MargAbstract We study the thermal effects on the nuclear matter (NM) properties such as binding energy, incompressibility, free symmetry energy and its coefficients using NL3, G3 and IU-FSU parameter sets of relativistic mean-field models. These models being consistent with the properties of cold NM, have also been used to study the effect of temperature by incorporating the Fermi function. The critical temperature for the liquid-gas phase transition in the symmetric NM is found to be 14.60, 15.37 and 14.50 MeV for NL3, G3 and IU-FSU parameter sets respectively, which is in excellent agreement with previous theoretical and experimental studies. We inspect that the properties related to second differential coefficient of the binding energy and free symmetry energy at saturation density ( i.e. $$K_{0}(n,T)$$ K0(n,T) and $$Q_{sym,0}$$ Qsym,0 ) exhibit the contrary effects for NL3 and G3 parameters as the temperature increases. We find that the prediction of saturated curvature parameter ( $$K_{sym,0}$$ Ksym,0 ) for G3 equation of state at finite temperature favour the combined analysis of $$K_{sym,0}$$ Ksym,0 for the existence of massive pulsars, gravitational waves from GW170817 and NICER observations of PSR J0030+0451. Further, we investigate the cooling mechanism of newly born stars through neutrino emissivity controlled by direct Urca process and instate some interesting remarks about neutrino emissivity. We also deliberate the effect of temperature on the M-R profile of Proto-Neutron star.http://link.springer.com/article/10.1140/epjc/s10052-020-8353-4 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ankit Kumar H. C. Das S. K. Biswal Bharat Kumar S. K. Patra |
spellingShingle |
Ankit Kumar H. C. Das S. K. Biswal Bharat Kumar S. K. Patra Warm dense matter and cooling of supernovae remnants European Physical Journal C: Particles and Fields |
author_facet |
Ankit Kumar H. C. Das S. K. Biswal Bharat Kumar S. K. Patra |
author_sort |
Ankit Kumar |
title |
Warm dense matter and cooling of supernovae remnants |
title_short |
Warm dense matter and cooling of supernovae remnants |
title_full |
Warm dense matter and cooling of supernovae remnants |
title_fullStr |
Warm dense matter and cooling of supernovae remnants |
title_full_unstemmed |
Warm dense matter and cooling of supernovae remnants |
title_sort |
warm dense matter and cooling of supernovae remnants |
publisher |
SpringerOpen |
series |
European Physical Journal C: Particles and Fields |
issn |
1434-6044 1434-6052 |
publishDate |
2020-08-01 |
description |
Abstract We study the thermal effects on the nuclear matter (NM) properties such as binding energy, incompressibility, free symmetry energy and its coefficients using NL3, G3 and IU-FSU parameter sets of relativistic mean-field models. These models being consistent with the properties of cold NM, have also been used to study the effect of temperature by incorporating the Fermi function. The critical temperature for the liquid-gas phase transition in the symmetric NM is found to be 14.60, 15.37 and 14.50 MeV for NL3, G3 and IU-FSU parameter sets respectively, which is in excellent agreement with previous theoretical and experimental studies. We inspect that the properties related to second differential coefficient of the binding energy and free symmetry energy at saturation density ( i.e. $$K_{0}(n,T)$$ K0(n,T) and $$Q_{sym,0}$$ Qsym,0 ) exhibit the contrary effects for NL3 and G3 parameters as the temperature increases. We find that the prediction of saturated curvature parameter ( $$K_{sym,0}$$ Ksym,0 ) for G3 equation of state at finite temperature favour the combined analysis of $$K_{sym,0}$$ Ksym,0 for the existence of massive pulsars, gravitational waves from GW170817 and NICER observations of PSR J0030+0451. Further, we investigate the cooling mechanism of newly born stars through neutrino emissivity controlled by direct Urca process and instate some interesting remarks about neutrino emissivity. We also deliberate the effect of temperature on the M-R profile of Proto-Neutron star. |
url |
http://link.springer.com/article/10.1140/epjc/s10052-020-8353-4 |
work_keys_str_mv |
AT ankitkumar warmdensematterandcoolingofsupernovaeremnants AT hcdas warmdensematterandcoolingofsupernovaeremnants AT skbiswal warmdensematterandcoolingofsupernovaeremnants AT bharatkumar warmdensematterandcoolingofsupernovaeremnants AT skpatra warmdensematterandcoolingofsupernovaeremnants |
_version_ |
1724474136290394112 |