The possibility of twin star solutions in a model based on lattice QCD thermodynamics

被引：18

作者：

Jakobus, P. ^{[1
,2
,3
]}

Motornenko, A. ^{[2
,3
]}

Gomes, R. O. ^{[3
]}

Steinheimer, J. ^{[3
]}

Stoecker, H. ^{[2
,3
,4
]}

机构：

[1] Monash Univ Clayton, Sch Phys & Astron, Clayton, Vic, Australia

[2] Goethe Univ, Inst Theoret Phys, Frankfurt, Germany

[3] Giersch Sci Ctr, Frankfurt Inst Adv Studies, Frankfurt, Germany

[4] GSI Helmholtzzentrum Schwerionenforsch GmbH, Darmstadt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 01期

关键词：

EQUATION-OF-STATE; STRANGE-QUARK-MATTER; GLUON-PLASMA FORMATION; NEUTRON-STARS; COMPACT STARS; PHASE-TRANSITION; DENSE MATTER; 3RD FAMILY; SEPARATION; SIGNATURE;

D O I：

10.1140/epjc/s10052-020-08779-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The properties of compact stars and in particular the existence of twin star solutions are investigated within an effective model that is constrained by lattice QCD thermodynamics. The model is modified at large baryon densities to incorporate a large variety of scenarios of first order phase transitions to a phase of deconfined quarks. This is achieved by matching two different variants of the bag model equation of state, in order to estimate the role of the Bag model parameters on the appearance of a second family of neutron stars. The produced sequences of neutron stars are compared with modern constrains on stellar masses, radii, and tidal deformability from astrophysical observations and gravitational wave analyses. It is found that those scenarios in our analysis, in which a third family of stars appeared due to the deconfinement transition, are disfavored from astrophysical constraints.

引用

页数：11

共 87 条

[1] 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)

[2] Probing dense baryon-rich matter with virtual photons [J].

Adamczewski-Musch, J. ;

Arnold, O. ;

Behnke, C. ;

Belounnas, A. ;

Belyaev, A. ;

Berger-Chen, J. C. ;

Biernat, J. ;

Blanco, A. ;

Blume, C. ;

Boehmer, M. ;

Bordalo, P. ;

Chernenko, S. ;

Chlad, L. ;

Deveaux, C. ;

Dittert, D. ;

Dreyer, J. ;

Dybczak, A. ;

Epple, E. ;

Fabbietti, L. ;

Fateev, O. ;

Filip, P. ;

Fonte, P. ;

Franco, C. ;

Friese, J. ;

Froehlich, I. ;

Galatyuk, T. ;

Garzon, J. A. ;

Gernhaeuser, R. ;

Golubeva, M. ;

Greifenhagen, R. ;

Guber, F. ;

Gumberidze, M. ;

Harabasz, S. ;

Heinz, T. ;

Hennino, T. ;

Hlavac, S. ;

Hoehne, C. ;

Holzmann, R. ;

Ierusalimov, A. ;

Ivashkin, A. ;

Kaempfer, B. ;

Karavicheva, T. ;

Kardan, B. ;

Koenig, I. ;

Koenig, W. ;

Kolb, B. W. ;

Korcyl, G. ;

Kornakov, G. ;

Kotte, R. ;

Kugler, A. .

NATURE PHYSICS, 2019, 15 (10) :1040-+

[3] Flavor-dependent eigenvolume interactions in a hadron resonance gas [J].

Alba, P. ;

Vovchenko, V. ;

Gorenstein, M., I ;

Stoecker, H. .

NUCLEAR PHYSICS A, 2018, 974 :22-34

[4] Characteristics of hybrid compact stars with a sharp hadron-quark interface [J].

Alford, Mark G. ;

Han, Sophia .

EUROPEAN PHYSICAL JOURNAL A, 2016, 52 (03)

[5] New class of hybrid EoS and Bayesian M-R data analysis [J].

Alvarez-Castillo, D. ;

Ayriyan, A. ;

Benic, S. ;

Blaschke, D. ;

Grigorian, H. ;

Typel, S. .

EUROPEAN PHYSICAL JOURNAL A, 2016, 52 (03)

[6] Third family of compact stars within a nonlocal chiral quark model equation of state [J].

Alvarez-Castillo, D. E. ;

Blaschke, D. B. ;

Grunfeld, A. G. ;

Pagura, V. P. .

PHYSICAL REVIEW D, 2019, 99 (06)

[7]

[Anonymous], 2018, Phys. Rev. D, DOI DOI 10.1103/PhysRevD.98.030001

[8] 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

[9] Signatures of quark-gluon plasma formation in high energy heavy-ion collisions:: a critical review [J].

Bass, SA ;

Gyulassy, M ;

Stöcker, H ;

Greiner, W .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1999, 25 (03) :R1-R57

[10] SYSTEMATICS OF DYNAMICAL MASS EJECTION, NUCLEOSYNTHESIS, AND RADIOACTIVELY POWERED ELECTROMAGNETIC SIGNALS FROM NEUTRON-STAR MERGERS [J].

Bauswein, A. ;

Goriely, S. ;

Janka, H. -T. .

ASTROPHYSICAL JOURNAL, 2013, 773 (01)

← 1 2 3 4 5 6 7 8 9 →