Suzaku Wide-band All-sky Monitor measurements of duration distributions of gamma-ray bursts

Ohmori Norisuke; Yamaoka Kazutaka; Ohno Masanori; Sugita Satoshi; Kinoshita Ryuuji; Nishioka Yusuke; Hurley Kevin; Hanabata Yoshitaka; Tashiro Makoto S.; Enomoto Junichi; Fujinuma Takeshi; Fukazawa Yasushi; Iwakiri Wataru; Kawano Takafumi; Kokubun Motohide; Makishima Kazuo; Matsuoka Shunsuke; Nagayoshi Tsutomu; Nakagawa Yujin E.; Nakaya Souhei; Nakazawa Kazuhiro; Takahashi Tadayuki; Takeda Sawako; Terada Yukikatsu; Urata Yuji; Yabe Seiya; Yasuda Tetsuya; Yamauchi Makoto

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Suzaku Wide-band All-sky Monitor measurements of duration distributions of gamma-ray bursts

机译：朱雀宽频全天候监视器对伽马射线暴持续时间分布的测量

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WereportontheT90andT50durationdistributionsandtheirrelationswithspectralhardnessusing1464gamma-raybursts(GRBs),whichwereobservedbytheSuzakuWide-bandAll-skyMonitor(WAM)from2005August4to2010December29.Thedurationdistributionisclearlybimodalinthreeenergyranges(50a€“120,120a€“250,and250a€“550a€‰keV),butisunclearinthe550a€“5000a€‰keVrange,probablybecauseofthelimitedsamplesize.TheWAMdurationsdecreasewithenergyaccordingtoapower-lawindexofa?’0.058(a?’0.034,+0.033).Thehardnessa€“durationrelationrevealsthepresenceofshorta€“hardandlonga€“softGRBs.Theshort:longeventratiotendstobehigherwithincreasingenergy.WecomparedtheWAMdistributionwithonesmeasuredbyeightotherGRBinstruments.TheWAMT90distributionisverysimilartothoseofINTEGRAL/SPI-ACSandGranat/PHEBUS,andleastlikelytomatchtheSwift/BATdistribution.TheWAMshort:longeventratio(0.25:0.75)ismuchdifferentfromSwift/BAT(0.08:0.92),butisalmostthesameasCGRO/BATSE(0.25:0.75).ToexplainthisdifferenceforBAT,weexaminedthreeeffects:BATtriggertypes,energydependenceoftheduration,anddetectionsensitivitydifferencesbetweenBATandWAM.Asaresult,wefoundthattheratiodifferencecouldbeexplainedmainlybyenergydependenceincludingsoftextendedemissionsforshortGRBsandmuchbettersensitivityforBATwhichcandetectweak/longGRBs.Thereasonforthesameshort:longeventratioforBATSEandWAMwasconfirmedbycalculationusingthetriggerefficiencycurve.

机译：WereportontheT90andT50durationdistributionsandtheirrelationswithspectralhardnessusing1464gamma-raybursts（暴），whichwereobservedbytheSuzakuWide-bandAll-skyMonitor（WAM）from2005August4to2010December29.Thedurationdistributionisclearlybimodalinthreeenergyranges（50A€“120,120a€“250，and250a€“550A€‰千电子伏），butisunclearinthe550a€“5000A€‰keVrange，probablybecauseofthelimitedsamplesize.TheWAMdurationsdecreasewithenergyaccordingtoapower-lawindexofa ？ '0.058（γ' 0.034，+ 0.033）.Thehardnessa€“durationrelationrevealsthepresenceofshorta€“hardandlonga€“softGRBs.Theshort：longeventratiotendstobehigherwithincreasingenergy.WecomparedtheWAMdistributionwithonesmeasuredbyeightotherGRBinstruments.TheWAMT90distributionisverysimilartothoseofINTEGRAL / SPI-ACSandGranat / PHEBUS，andleastlikelytomatchtheSwift / BATdistribution.TheWAMshort：longeventratio（0.25：0.75）与Swift / BAT（0.08：0.92）的区别很大，但与CGRO / BATSE（0.25：0.75）的区别几乎相同。为了解释BAT的这种区别，我们研究了三种效应：BAT触发类型，能量依赖性结果发现，BAT和WAM之间的持续时间和检测灵敏度差异。可以发现，该差异主要可以通过能量依赖性来解释，其中包括短GRB的软扩展发射和可以检测到弱/长GRB的BAT更好的灵敏性。

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《PASJ: Publications of the Astronomical Society of Japan》 |2016年第sp1期|共页
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Ohmori Norisuke; Yamaoka Kazutaka; Ohno Masanori; Sugita Satoshi; Kinoshita Ryuuji; Nishioka Yusuke; Hurley Kevin; Hanabata Yoshitaka; Tashiro Makoto S.; Enomoto Junichi; Fujinuma Takeshi; Fukazawa Yasushi; Iwakiri Wataru; Kawano Takafumi; Kokubun Motohide; Makishima Kazuo; Matsuoka Shunsuke; Nagayoshi Tsutomu; Nakagawa Yujin E.; Nakaya Souhei; Nakazawa Kazuhiro; Takahashi Tadayuki; Takeda Sawako; Terada Yukikatsu; Urata Yuji; Yabe Seiya; Yasuda Tetsuya; Yamauchi Makoto;
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1. Spectral properties of gamma-ray bursts observed by the Suzaku wide-band all-sky monitor [J] . Norisuke Ohmori, Kazutaka Yamaoka, Makoto Yamauchi, Publications of the Astronomical Society of Japan . 2019,第4期

机译：朱雀宽频带全天空监测仪观测到的伽马射线爆发的光谱特性
2. Spectral properties of gamma-ray bursts observed by the Suzaku wide-band all-sky monitor [J] . Ohmori Norisuke, Yamaoka Kazutaka, Yamauchi Makoto, PASJ: Publications of the Astronomical Society of Japan . 2019,第4期

机译：苏崎宽带全天监测器观察伽马射线突发的光谱特性
3. Sub-MeV band observation of a hard burst from AXP 1E 1547.0-5408 with the Suzaku Wide-band All-sky Monitor [J] . Yasuda Tetsuya, Iwakiri Wataru B., Tashiro Makoto S., PASJ: Publications of the Astronomical Society of Japan . 2015,第3期

机译：使用Suzaku宽带全天空监视器对AXP 1E 1547.0-5408的硬脉冲进行亚MeV波段观测
4. The spectral properties of the GRB prompt gamma-ray emission observed by the Suzaku Wide-band All-sky Monitor [C] . M. Ohno, T. Uehara, T. Takahashi, Santa Fe Conference on Gamma-Ray Bursts . 2008

机译：Suzaku宽带全天监测器观察GRB提示伽马射线发射的光谱特性
5. The systematic effects of photon flux on gamma-ray burst duration measurements. [D] . Moneer, Eman M. 2011

机译：光子通量对伽马射线爆发持续时间测量的系统影响。
6. Strict coupling between CFTR’s catalytic cycle and gating of its Cl− ion pore revealed by distributions of open channel burst durations [O] . László Csanády, Paola Vergani, David C. Gadsby 2010

机译：CFTR催化循环与其Cl-离子孔门控之间的严格耦合通过明渠爆发持续时间的分布揭示
7. Spectral properties of gamma-ray bursts observed by the Suzaku wide-band all-sky monitor [O] . Norisuke Ohmori, Kazutaka Yamaoka, Makoto Yamauchi, 2019

机译：苏崎宽带全天监视器观察伽马射线突发的光谱特性

Suzaku Wide-band All-sky Monitor measurements of duration distributions of gamma-ray bursts

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