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

M. Chernyakova; A. Neronov; B. van Soelen; P. Callanan; L. O'Shaughnessy; Iu Babyk; S. Tsygankov; Ie Vovk; R. Krivonos; J. A. Tomsick; D. Malyshev; J. Li; K. Wood; D. Torres; S. Zhang; P. Kretschmar; M. V. McSwain; D. A.H. Buckley; C. Koen

doi:10.1093/mnras/stv1988

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

M. Chernyakova
, A. Neronov
, B. van Soelen
, P. Callanan
, L. O'Shaughnessy
, Iu Babyk
, S. Tsygankov
, Ie Vovk
, R. Krivonos
, J. A. Tomsick
, D. Malyshev
, J. Li
, K. Wood
, D. Torres
, S. Zhang
, P. Kretschmar
, M. V. McSwain
, D. A.H. Buckley
, C. Koen

School of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the results of the extensive multi-wavelength campaign from optical to GeV γ-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass γ-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 Hα 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.

Original language	English
Pages (from-to)	1358-1370
Number of pages	13
Journal	Monthly Notices of the Royal Astronomical Society
Volume	454
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stv1988
Publication status	Published - 1 Dec 2015

Keywords

Gamma rays: stars
Pulsars: individual: PSR B1259-63
Stars: emission-line, Be
X-rays: binaries
X-rays: individual: PSR B1259-63

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10.1093/mnras/stv1988

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Chernyakova, M., Neronov, A., van Soelen, B., Callanan, P., O'Shaughnessy, L., Babyk, I., Tsygankov, S., Vovk, I., Krivonos, R., Tomsick, J. A., Malyshev, D., Li, J., Wood, K., Torres, D., Zhang, S., Kretschmar, P., McSwain, M. V., Buckley, D. A. H., & Koen, C. (2015). Multi-wavelength observations of the binary system PSR B1259-63/LS 2883 around the 2014 periastron passage. Monthly Notices of the Royal Astronomical Society, 454(2), 1358-1370. https://doi.org/10.1093/mnras/stv1988

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

abstract = "We report on the results of the extensive multi-wavelength campaign from optical to GeV γ-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass γ-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 Hα 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.",

keywords = "Gamma rays: stars, Pulsars: individual: PSR B1259-63, Stars: emission-line, Be, X-rays: binaries, X-rays: individual: PSR B1259-63",

author = "M. Chernyakova and A. Neronov and \{van Soelen\}, B. and P. Callanan and L. O'Shaughnessy and Iu Babyk and S. Tsygankov and Ie Vovk and R. Krivonos and Tomsick, \{J. A.\} and D. Malyshev and J. Li and K. Wood and D. Torres and S. Zhang and P. Kretschmar and McSwain, \{M. V.\} and Buckley, \{D. A.H.\} and C. Koen",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2015",

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doi = "10.1093/mnras/stv1988",

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Chernyakova, M, Neronov, A, van Soelen, B, Callanan, P, O'Shaughnessy, L, Babyk, I, Tsygankov, S, Vovk, I, Krivonos, R, Tomsick, JA, Malyshev, D, Li, J, Wood, K, Torres, D, Zhang, S, Kretschmar, P, McSwain, MV, Buckley, DAH & Koen, C 2015, 'Multi-wavelength observations of the binary system PSR B1259-63/LS 2883 around the 2014 periastron passage', Monthly Notices of the Royal Astronomical Society, vol. 454, no. 2, pp. 1358-1370. https://doi.org/10.1093/mnras/stv1988

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T1 - Multi-wavelength observations of the binary system PSR B1259-63/LS 2883 around the 2014 periastron passage

AU - Chernyakova, M.

AU - Neronov, A.

AU - van Soelen, B.

AU - Callanan, P.

AU - O'Shaughnessy, L.

AU - Babyk, Iu

AU - Tsygankov, S.

AU - Vovk, Ie

AU - Krivonos, R.

AU - Tomsick, J. A.

AU - Malyshev, D.

AU - Li, J.

AU - Wood, K.

AU - Torres, D.

AU - Zhang, S.

AU - Kretschmar, P.

AU - McSwain, M. V.

AU - Buckley, D. A.H.

AU - Koen, C.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - We report on the results of the extensive multi-wavelength campaign from optical to GeV γ-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass γ-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 Hα 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.

AB - We report on the results of the extensive multi-wavelength campaign from optical to GeV γ-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass γ-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 Hα 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.

KW - Gamma rays: stars

KW - Pulsars: individual: PSR B1259-63

KW - Stars: emission-line, Be

KW - X-rays: binaries

KW - X-rays: individual: PSR B1259-63

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DO - 10.1093/mnras/stv1988

M3 - Article

AN - SCOPUS:84975709369

SN - 0035-8711

VL - 454

SP - 1358

EP - 1370

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

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

Abstract

Keywords

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