The moment of inertia of the neutron star PSR J0348+0432 and its proto neutron star

被引：6
作者：
Zhao, Xian-Feng [1 ,2 ]
机构：
[1] Southwest Petr Univ, Sch Sci, Chengdu 610500, Peoples R China
[2] Chuzhou Univ, Sch Elect & Elect Engn, Chuzhou 239000, Peoples R China
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2017年 / 362卷 / 05期
关键词：
Moment of inertia; Relativistic mean field theory; Neutron star; MATTER; HYPERNUCLEI; ATOMS;
D O I：
10.1007/s10509-017-3073-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The difference of the moment of inertia of the neutron star PSR J0348+0432 and that of its proto neutron star is studied in the framework of the relativistic mean field theory considering baryon octet. The temperature of the proto neutron star PSR J0348+0432 is chosen as T = 5 MeV. The calculations show that the central baryon number density of the proto neutron star PSR J0348+0432 is in the range 0.623 similar to 0.813 fm(-3), decreased by 2 similar to 7% compared to that of the neutron star PSR J0348+0432. The radius of the proto neutron star PSR J0348+0432 is in the range 13.101 similar to 12.419 km, increased by 1 similar to 2% compared to that of the neutron star PSR J0348+0432. The moment of inertia of the proto neutron star PSR J0348+0432 is in the range 1.939 x 10(45) x 1.638 x 10(45) gcm(2), increased by about 2 similar to 7% compared to that of the neutron star PSR J0348+0432.
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页数：4
相关论文
共 23 条
[1]   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
[2]  
Atta D., 2015, ARXIV150704728
[3]   Strong interaction physics from hadronic atoms [J].
Batty, CJ ;
Friedman, E ;
Gal, A .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1997, 287 (05) :385-445
[4]   Constraints on the dense matter equation of state from the measurements of PSR J0737-3039A moment of inertia and PSR J0751+1807 mass [J].
Bejger, M ;
Bulik, T ;
Haensel, P .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 364 (02) :635-639
[5]   THE BIRTH OF NEUTRON-STARS [J].
BURROWS, A ;
LATTIMER, JM .
ASTROPHYSICAL JOURNAL, 1986, 307 (01) :178-196
[6]   A two-solar-mass neutron star measured using Shapiro delay [J].
Demorest, P. B. ;
Pennucci, T. ;
Ransom, S. M. ;
Roberts, M. S. E. ;
Hessels, J. W. T. .
NATURE, 2010, 467 (7319) :1081-1083
[7]   In-medium nuclear interactions of low-energy hadrons [J].
Friedman, E. ;
Gal, A. .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2007, 452 (4-5) :89-153
[8]  
Glendenning N.K., 1997, COMPACT STARS NUCL P
[9]   RECONCILIATION OF NEUTRON-STAR MASSES AND BINDING OF THE LAMBDA IN HYPERNUCLEI [J].
GLENDENNING, NK ;
MOSZKOWSKI, SA .
PHYSICAL REVIEW LETTERS, 1991, 67 (18) :2414-2417
[10]   FINITE TEMPERATURE METASTABLE MATTER [J].
GLENDENNING, NK .
PHYSICS LETTERS B, 1987, 185 (3-4) :275-280
123