Probing the nature of short swift bursts via deep INTEGRAL monitoring of GRB 050925

T. Sakamoto; L. Barbier; S. D. Barthelmy; J. R. Cummings; E. E. Fenimore; N. Gehrels; H. A. Krimm; C. B. Markwardt; D. M. Palmer; A. M. Parsons; G. Sato; M. Stamatikos; J. Tueller

doi:10.1016/j.asr.2010.08.004

Probing the nature of short swift bursts via deep INTEGRAL monitoring of GRB 050925

T. Sakamoto^*, L. Barbier, S. D. Barthelmy, J. R. Cummings, E. E. Fenimore, N. Gehrels, H. A. Krimm, C. B. Markwardt, D. M. Palmer, A. M. Parsons, G. Sato, M. Stamatikos, J. Tueller

^*この研究の対応する著者

理工学術院総合研究所

研究成果: Article › 査読

4 被引用数 (Scopus)

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We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst properties: (1) galactic plane (b = -0.1°) localization, (2) 150 ms duration, and (3) a blackbody rather than a simple power-law spectral shape (with a significance level of 97%). We found two possible X-ray counterparts of GRB 050925 by comparing the X-ray images from Swift XRT and XMM-Newton. Both X-ray sources show the transient behavior with a power-law decay index shallower than -1. We found no hard X-ray emission nor any additional burst from the location of GRB 050925 in ∼5 ms of INTEGRAL data. We discuss about the three BATSE short bursts which might be associated with GRB 050925, based on their location and the duration. Assuming GRB 050925 is associated with the H _II regions (W 58) at the galactic longitude of l = 70°, we also discuss the source frame properties of GRB 050925.

本文言語	English
ページ（範囲）	1346-1352
ページ数	7
ジャーナル	Advances in Space Research
巻	47
号	8
DOI	https://doi.org/10.1016/j.asr.2010.08.004
出版ステータス	Published - 2011 4月 15

ASJC Scopus subject areas

航空宇宙工学
宇宙惑星科学

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10.1016/j.asr.2010.08.004

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Sakamoto, T., Barbier, L., Barthelmy, S. D., Cummings, J. R., Fenimore, E. E., Gehrels, N., Krimm, H. A., Markwardt, C. B., Palmer, D. M., Parsons, A. M., Sato, G., Stamatikos, M., & Tueller, J. (2011). Probing the nature of short swift bursts via deep INTEGRAL monitoring of GRB 050925. Advances in Space Research, 47(8), 1346-1352. https://doi.org/10.1016/j.asr.2010.08.004

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abstract = "We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst properties: (1) galactic plane (b = -0.1°) localization, (2) 150 ms duration, and (3) a blackbody rather than a simple power-law spectral shape (with a significance level of 97%). We found two possible X-ray counterparts of GRB 050925 by comparing the X-ray images from Swift XRT and XMM-Newton. Both X-ray sources show the transient behavior with a power-law decay index shallower than -1. We found no hard X-ray emission nor any additional burst from the location of GRB 050925 in ∼5 ms of INTEGRAL data. We discuss about the three BATSE short bursts which might be associated with GRB 050925, based on their location and the duration. Assuming GRB 050925 is associated with the H II regions (W 58) at the galactic longitude of l = 70°, we also discuss the source frame properties of GRB 050925.",

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AU - Barbier, L.

AU - Barthelmy, S. D.

AU - Cummings, J. R.

AU - Fenimore, E. E.

AU - Gehrels, N.

AU - Krimm, H. A.

AU - Markwardt, C. B.

AU - Palmer, D. M.

AU - Parsons, A. M.

AU - Sato, G.

AU - Stamatikos, M.

AU - Tueller, J.

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N2 - We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst properties: (1) galactic plane (b = -0.1°) localization, (2) 150 ms duration, and (3) a blackbody rather than a simple power-law spectral shape (with a significance level of 97%). We found two possible X-ray counterparts of GRB 050925 by comparing the X-ray images from Swift XRT and XMM-Newton. Both X-ray sources show the transient behavior with a power-law decay index shallower than -1. We found no hard X-ray emission nor any additional burst from the location of GRB 050925 in ∼5 ms of INTEGRAL data. We discuss about the three BATSE short bursts which might be associated with GRB 050925, based on their location and the duration. Assuming GRB 050925 is associated with the H II regions (W 58) at the galactic longitude of l = 70°, we also discuss the source frame properties of GRB 050925.

AB - We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst properties: (1) galactic plane (b = -0.1°) localization, (2) 150 ms duration, and (3) a blackbody rather than a simple power-law spectral shape (with a significance level of 97%). We found two possible X-ray counterparts of GRB 050925 by comparing the X-ray images from Swift XRT and XMM-Newton. Both X-ray sources show the transient behavior with a power-law decay index shallower than -1. We found no hard X-ray emission nor any additional burst from the location of GRB 050925 in ∼5 ms of INTEGRAL data. We discuss about the three BATSE short bursts which might be associated with GRB 050925, based on their location and the duration. Assuming GRB 050925 is associated with the H II regions (W 58) at the galactic longitude of l = 70°, we also discuss the source frame properties of GRB 050925.

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Probing the nature of short swift bursts via deep INTEGRAL monitoring of GRB 050925

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