Proto-neutron stars with heavy baryons and universal relations

被引：61

作者：

Raduta, Adriana R. ^{[1
]}

Oertel, Micaela ^{[2
]}

Sedrakian, Armen ^{[3
,4
]}

机构：

[1] Natl Inst Phys & Nucl Engn IFIN HH, RO-077125 Bucharest, Romania

[2] Univ Paris, Univ PSL, CNRS, Observ Paris,LUTH, F-92195 Meudon, France

[3] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[4] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2020年 / 499卷 / 01期

关键词：

dense matter; equation of state; stars: neutron; EQUATION-OF-STATE; MAXIMUM MASS; DIFFERENTIAL ROTATION; PROTONEUTRON STARS; DELTA ISOBARS; INERTIA; MOMENT; CONSTRAINTS; EVOLUTION; PHYSICS;

D O I：

10.1093/mnras/staa2491

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use covariant density functional theory to obtain the equation of state (EoS) of matter in compact stars at non-zero temperature, including the full baryon octet as well as the Delta(1232) resonance states. Global properties of hot Delta-admixed hypernuclear stars are computed for fixed values of entropy per baryon (S/A) and lepton fraction (Y-L). Universal relations between the moment of inertia, quadrupole moment, tidal deformability, and compactness of compact stars are established for fixed values of S/A and Y-L that are analogous to those known for cold catalyzed compact stars. We also verify that the I-Love-Q relations hold at finite temperature for constant values of S/A and Y-L.

引用

页码：914 / 931

页数：18

共 138 条

[1]

A. University, 2017, EXOTIC

[2] GW170817: Measurements of Neutron Star Radii and Equation of State [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Aloy, M. A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S. V. ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arene, M. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D. V. ;

Aubin, F. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. .

PHYSICAL REVIEW LETTERS, 2018, 121 (16)

[3] GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Afrough, M. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S. V. ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D. V. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. ;

Bacon, P. ;

Bader, M. K. M. .

PHYSICAL REVIEW LETTERS, 2017, 119 (16)

[4] Properties of the Binary Neutron Star Merger GW170817 [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Aloy, M. A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S., V ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arene, M. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D., V ;

Aubin, F. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. .

PHYSICAL REVIEW X, 2019, 9 (01)

[5]

[Anonymous], 2019, APJ, DOI DOI 10.3847/1538-4357/AB4F6C

[6]

[Anonymous], 2019, APJ, DOI DOI 10.3847/1538-4357/AB3A93

[7]

[Anonymous], 2017, APJ, DOI DOI 10.3847/1538-4357/834/1/3

[8]

[Anonymous], 2019, APJ, DOI DOI 10.3847/2041-8213/AB1090

[9]

[Anonymous], 2018, APJ, DOI DOI 10.3847/1538-4357/AAD049

[10] A Massive Pulsar in a Compact Relativistic Binary [J].

Antoniadis, John ;

Freire, Paulo C. C. ;

Wex, Norbert ;

Tauris, Thomas M. ;

Lynch, Ryan S. ;

van Kerkwijk, Marten H. ;

Kramer, Michael ;

Bassa, Cees ;

Dhillon, Vik S. ;

Driebe, Thomas ;

Hessels, Jason W. T. ;

Kaspi, Victoria M. ;

Kondratiev, Vladislav I. ;

Langer, Norbert ;

Marsh, Thomas R. ;

McLaughlin, Maura A. ;

Pennucci, Timothy T. ;

Ransom, Scott M. ;

Stairs, Ingrid H. ;

van Leeuwen, Joeri ;

Verbiest, Joris P. W. ;

Whelan, David G. .

SCIENCE, 2013, 340 (6131) :448

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