Analysing neutron star in HESS J1731-347 from thermal emission and cooling theory

被引：24

作者：

Ofengeim, D. D. ^{[1
,2
]}

Kaminker, A. D. ^{[2
]}

Klochkov, D. ^{[3
]}

Suleimanov, V. ^{[3
,4
]}

Yakovlev, D. G. ^{[2
]}

机构：

[1] St Petersburg Acad Univ, St Petersburg 194021, Russia

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[3] Univ Tubingen IAAT, Inst Astron & Astrophys, D-72076 Tubingen, Germany

[4] Kazan Volga Reg Fed Univ, Kazan 420008, Russia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2015年 / 454卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

dense matter; equation of state; neutrinos; stars: neutron; PAIR BREMSSTRAHLUNG; SUPERNOVA REMNANT; MATTER; CASSIOPEIA; ENVELOPES;

D O I：

10.1093/mnras/stv2204

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The central compact object in the supernova remnant HESS J1731-347 appears to be the hottest observed isolated cooling neutron star. The cooling theory of neutron stars enables one to explain observations of this star by assuming the presence of strong proton superfluidity in the stellar core and the existence of the surface heat blanketing envelope which almost fully consists of carbon. The cooling model of this star is elaborated to take proper account of the neutrino emission due to neutron-neutron collisions which is not suppressed by proton superfluidity. Using the results of spectral fits of observed thermal spectra for the distance of 3.2 kpc and the cooling theory for the neutron star of age 27 kyr, new constraints on the stellar mass and radius are obtained which are more stringent than those derived from the spectral fits alone.

引用

页码：2668 / 2676

页数：9

共 30 条

[1]

[Anonymous], 2007, Neutron Stars Equation of State and Structure

[2] 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

[3] Statistical theory of thermal evolution of neutron stars [J].

Beznogov, M. V. ;

Yakovlev, D. G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 447 (02) :1598-1609

[4] 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

[5] NEUTRINO PAIR EMISSION FROM FINITE-TEMPERATURE NEUTRON SUPERFLUID AND COOLING OF YOUNG NEUTRON STARS [J].

FLOWERS, E ;

RUDERMAN, M ;

SUTHERLAND, P .

ASTROPHYSICAL JOURNAL, 1976, 205 (02) :541-544

[6] STRUCTURE OF NEUTRON STAR ENVELOPES [J].

GUDMUNDSSON, EH ;

PETHICK, CJ ;

EPSTEIN, RI .

ASTROPHYSICAL JOURNAL, 1983, 272 (01) :286-300

[7] The cooling of Akmal-Pandharipande-Ravenhall neutron star models [J].

Gusakov, ME ;

Kaminker, AD ;

Yakovlev, DG ;

Gnedin, OY .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 363 (02) :555-562

[8] TWO MAGNETAR CANDIDATES IN HESS SUPERNOVA REMNANTS [J].

Halpern, J. P. ;

Gotthelf, E. V. .

ASTROPHYSICAL JOURNAL, 2010, 710 (02) :941-947

[9] A neutron star with a carbon atmosphere in the Cassiopeia A supernova remnant [J].

Ho, Wynn C. G. ;

Heinke, Craig O. .

NATURE, 2009, 462 (7269) :71-73

[10] Thermal emission of neutron stars with internal heaters [J].

Kaminker, A. D. ;

Kaurov, A. A. ;

Potekhin, A. Y. ;

Yakovlev, D. G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 442 (04) :3484-3494

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