X-ray flares from postmerger millisecond pulsars

被引：314

作者：

Dai, ZG ^{[1
]}

Wang, XY

Wu, XF

Zhang, B

机构：

[1] Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Peoples R China

[3] Univ Nevada, Dept Phys, Las Vegas, NV 89154 USA

来源：

SCIENCE | 2006年 / 311卷 / 5764期

关键词：

D O I：

10.1126/science.1123606

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Recent observations support the suggestion that short-duration gamma-ray bursts are produced by compact star mergers. The x-ray flares discovered in two short gamma-ray bursts last much longer than the previously proposed postmerger energy-release time scales. Here, we show that they can be produced by differentially rotating, millisecond pulsars after the mergers of binary neutron stars. The differential rotation leads to windup of interior poloidal magnetic fields and the resulting toroidal fields are strong enough to float up and break through the stellar surface. Magnetic reconnection-driven explosive events then occur, leading to multiple x-ray flares minutes after the original gamma-ray burst.

引用

页码：1127 / 1129

页数：3

共 30 条

[1] Relativistic outflows from remnants of compact object mergers and their viability for short gamma-ray bursts [J].

Aloy, MA ;

Janka, HT ;

Müller, E .

ASTRONOMY & ASTROPHYSICS, 2005, 436 (01) :273-311

[2] An origin for short γ-ray bursts unassociated with current star formation [J].

Barthelmy, SD ;

Chincarini, G ;

Burrows, DN ;

Gehrels, N ;

Covino, S ;

Moretti, A ;

Romano, P ;

O'Brien, PT ;

Sarazin, CL ;

Kouveliotou, C ;

Goad, M ;

Vaughan, S ;

Tagliaferri, G ;

Zhang, B ;

Antonelli, LA ;

Campana, S ;

Cummings, JR ;

D'Avanzo, P ;

Davies, MB ;

Giommi, P ;

Grupe, D ;

Kaneko, Y ;

Kennea, JA ;

King, A ;

Kobayashi, S ;

Melandri, A ;

Meszaros, P ;

Nousek, JA ;

Patel, S ;

Sakamoto, T ;

Wijers, RAMJ .

NATURE, 2005, 438 (7070) :994-996

[3] The afterglow and elliptical host galaxy of the short γ-ray burst GRB 050724 [J].

Berger, E ;

Price, PA ;

Cenko, SB ;

Gal-Yam, A ;

Soderberg, M ;

Kasliwal, M ;

Leonard, DC ;

Cameron, PB ;

Frail, DA ;

Kulkarni, SR ;

Murphy, DC ;

Krzeminski, W ;

Piran, T ;

Lee, BL ;

Roth, KC ;

Moon, DS ;

Fox, DB ;

Harrison, FA ;

Persson, SE ;

Schmidt, BP ;

Penprase, BE ;

Rich, J ;

Peterson, BA ;

Cowie, LL .

NATURE, 2005, 438 (7070) :988-990

[4] Closing in on a short-hard burst progenitor: Constraints from early-time optical imaging and spectroscopy of a possible host galaxy of GRB 050509b [J].

Bloom, JS ;

Prochaska, JX ;

Pooley, D ;

Blake, CH ;

Foley, RJ ;

Jha, S ;

Ramirez-Ruiz, E ;

Granot, J ;

Filippenko, AV ;

Sigurdsson, S ;

Barth, AJ ;

Chen, HW ;

Cooper, MC ;

Falco, EE ;

Gal, RR ;

Gerke, BF ;

Gladders, MD ;

Greene, JE ;

Hennanwi, J ;

Ho, LC ;

Hurley, K ;

Koester, BP ;

Li, W ;

Lubin, L ;

Newman, J ;

Perley, DA ;

Squires, GK ;

Wood-Vasey, WM .

ASTROPHYSICAL JOURNAL, 2006, 638 (01) :354-368

[5] Bright X-ray flares in gamma-ray burst afterglows [J].

Burrows, DN ;

Romano, P ;

Falcone, A ;

Kobayashi, S ;

Zhang, B ;

Moretti, A ;

O'Brien, PT ;

Goad, MR ;

Campana, S ;

Page, KL ;

Angelini, L ;

Barthelmy, S ;

Beardmore, AP ;

Capalbi, M ;

Chincarini, G ;

Cummings, J ;

Cusumano, G ;

Fox, D ;

Giommi, P ;

Hill, JE ;

Kennea, JA ;

Krimm, H ;

Mangano, V ;

Marshall, F ;

Mészáros, P ;

Morris, DC ;

Nousek, JA ;

Osborne, JP ;

Pagani, C ;

Perri, M ;

Tagliaferri, G ;

Wells, AA ;

Woosley, S ;

Gehrels, N .

SCIENCE, 2005, 309 (5742) :1833-1835

[6]

Dai ZG, 1998, ASTRON ASTROPHYS, V333, pL87

[7] γ-ray bursts and afterglows from rotating strange stars and neutron stars [J].

Dai, ZG ;

Lu, T .

PHYSICAL REVIEW LETTERS, 1998, 81 (20) :4301-4304

[8] The ultimate outcome of black hole-neutron star mergers [J].

Davies, MB ;

Levan, AJ ;

King, AR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 356 (01) :54-58

[9] NUCLEOSYNTHESIS, NEUTRINO BURSTS AND GAMMA-RAYS FROM COALESCING NEUTRON STARS [J].

EICHLER, D ;

LIVIO, M ;

PIRAN, T ;

SCHRAMM, DN .

NATURE, 1989, 340 (6229) :126-128

[10] Late internal-shock model for bright X-ray flares in gamma-ray burst afterglows and GRB 011121 [J].

Fan, YZ ;

Wei, DM .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 364 (01) :L42-L46

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