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	Konus-Wind observation of GRB 190613B
	Svinkin, D; Golenetskii, S; Aptekar, R; Frederiks, D; Ulanov, M; Tsvetkova, A; Lysenko, A; Kozlova, A; Cline, T.; Team, Konus-Wind
	2019-06-17
出处	GRB Coordinates Network
英文摘要	The long-duration GRB 190613B (Swift-BAT detection: D'Ai et al., GCN Circ. 24807; Fermi-GBM observation: Bissaldi et al., GCN Circ. 24814; Insight-HXMT/HE detection: Luo et al., GCN Circ. 24829) triggered Konus- Wind at T0=38825.774 s UT (10:47:05.774). The burst light curve shows a single pulse which starts at ~T0-2.6 s and has a total duration of ~4 s. The emission is seen up to ~3 MeV. As observed by Konus-Wind, the burst had a fluence of 3.48(-0.79,+1.29)x10^-6 erg/cm2, and a 64-ms peak flux, measured from T0+0.544 s, of 2.65(-1.10,+1.54)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+8.448 s) is best fit in the 20 keV - 4 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.93(-0.53,+0.83) and Ep = 277(-107,+331) keV (chi2 = 82/72 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -1.8 (chi2 = 82/71 dof). The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB190613_T38825/ All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
内容类型	GCN
源URL	[http://ir.ihep.ac.cn/handle/311005/287643]
专题	硬X射线调制望远镜卫星
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Svinkin, D,Golenetskii, S,Aptekar, R,et al. Konus-Wind observation of GRB 190613B. 2019.

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