Multi-wavelength observations of the binary system PSR B1259-63/LS 2883 around the 2014 periastron passage

被引：55

作者：

Chernyakova, M. ^{[1
,2
]}

Neronov, A. ^{[3
]}

van Soelen, B. ^{[4
]}

Callanan, P. ^{[5
]}

O'Shaughnessy, L. ^{[5
]}

Babyk, Iu. ^{[1
,2
,6
]}

Tsygankov, S. ^{[7
]}

Vovk, Ie. ^{[8
]}

Krivonos, R. ^{[9
]}

Tomsick, J. A. ^{[9
,10
]}

Malyshev, D. ^{[3
]}

Li, J. ^{[11
]}

Wood, K. ^{[12
]}

Torres, D. ^{[11
,13
]}

Zhang, S. ^{[14
]}

Kretschmar, P. ^{[15
]}

McSwain, M. V. ^{[16
]}

Buckley, D. A. H. ^{[17
,18
]}

Koen, C. ^{[19
]}

机构：

[1] Dublin City Univ, Dublin 9, Ireland

[2] Dublin Inst Adv Studies, Dublin 2, Ireland

[3] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland

[4] Univ Free State, Dept Phys, ZA-9300 Bloemfontein, Free State, South Africa

[5] Natl Univ Ireland Univ Coll Cork, Dept Phys, Cork, Ireland

[6] Natl Acad Sci Ukraine, Main Astron Observ, UA-03680 Kiev, Ukraine

[7] Univ Turku, Dept Phys & Astron, Tuorla Observ, FI-21500 Piikkio, Finland

[8] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[9] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[10] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia

[11] Inst Space Sci CSIC IEEC, E-08193 Barcelona, Spain

[12] US Naval Res Lab, Div Space Sci, Washington, DC 20375 USA

[13] ICREA, Barcelona, Spain

[14] Inst High Energy Phys, Lab Particle Astrophys, Beijing 100049, Peoples R China

[15] European Space Astron Ctr ESA ESAC, Sci Operat Dept, Villanueva De La Canada, Madrid, Spain

[16] Lehigh Univ, Dept Phys, Bethlehem, PA 18015 USA

[17] S African Astron Observ, ZA-7935 Observatory, South Africa

[18] Southern African Large Telescope, ZA-7935 Observatory, South Africa

[19] Univ Western Cape, Dept Stat, ZA-7535 Bellville, South Africa

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2015年 / 454卷 / 02期

基金：

中国国家自然科学基金; 美国国家科学基金会; 俄罗斯科学基金会;

关键词：

stars:; emission-line; Be; pulsars: individual: PSR B1259-63; gamma rays: stars; X-rays: binaries; X-rays: individual: PSR B1259-63; GAMMA-RAY EMISSION; PULSAR WIND; 2RXP J130159.6-635806; DISCOVERY; TELESCOPE; MISSION; VARIABILITY; MODEL; FERMI;

D O I：

10.1093/mnras/stv1988

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the results of the extensive multi-wavelength campaign from optical to GeV gamma-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass gamma-ray emitting binary system with a young pulsar companion. Observations demonstrate the stable nature of the post-periastron GeV flare and prove the coincidence of the flare with the start of rapid decay of the Ha equivalent width, usually interpreted as a disruption of the Be stellar disc. Intensive X-ray observations reveal changes in the X-ray spectral behaviour happening at the moment of the GeV flare. We demonstrate that these changes can be naturally explained as a result of synchrotron cooling of monoenergetic relativistic electrons injected into the system during the GeV flare.

引用

页码：1358 / 1370

页数：13

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