当前位置: X-MOL 学术Astron. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
New Gamma-Ray Bursts Found in the Archival Data from the IBIS/ISGRI Telescope of the INTEGRAL Observatory
Astronomy Letters ( IF 0.9 ) Pub Date : 2019-12-16 , DOI: 10.1134/s1063773719100025
I. V. Chelovekov , S. A. Grebenev , A. S. Pozanenko , P. Yu. Minaev

A systematic search for cosmic gamma-ray bursts (GRBs) and other short hard X-ray events in the archival data from the IBIS/ISGRI telescope of the INTEGRAL observatory over 2003–2018 has been carried out. Seven previously unknown GRBs have been recorded in the telescope field of view; all of them have been localized with an accuracy ≤2 arcmin. These events were not revealed by the INTEGRAL burst alert system (IBAS) designed for an automatic GRB search and alert. Four more such localized events missed by IBAS, but known previously, i.e., observed in other experiments, have been found. Eight hundred and eighty six GRBs outside the field of view that arrived at large angles to the IBIS/ISGRI axis have also been recorded. All of them were previously recorded in other experiments, primarily by the anticoincidence shield (ACS) of the SPI gamma-ray spectrometer onboard the INTEGRAL observatory, the PICsIT detector of the IBIS gamma-ray telescope, and the KONUS/WIND monitor. An order of magnitude more events without any confirmations in other experiments have been recorded. Both GRBs and solar flares or magnetospheric transient events can be among them. Catalogs with the basic parameters of confirmed and previously unknown cosmic GRBs recorded by the IBIS/ISGRI telescope have been compiled. The statistical distributions of bursts in various parameters have been constructed and investigated.

中文翻译:

INTEGRAL天文台的IBIS / ISGRI望远镜的档案数据中发现了新的伽马射线暴

在2003-2018年间,对INTEGRAL天文台的IBIS / ISGRI望远镜的档案数据中的宇宙伽马射线暴(GRB)和其他短时硬X射线事件进行了系统的搜索。在望远镜视场中已记录了七个先前未知的GRB。它们全部以≤2arcmin的精度定位。为自动GRB搜索和警报而设计的INTEGRAL突发警报系统(IBAS)并未揭示这些事件。IBAS遗漏了另外四个这样的本地化事件,但是先前已经知道,即在其他实验中已经观察到。还记录了视野外的886个GRB,它们与IBIS / ISGRI轴成大角度。所有这些都是以前在其他实验中记录的,主要是通过INTEGRAL天文台上的SPI伽马射线光谱仪的防巧合屏蔽(ACS),IBIS伽马射线望远镜的PICsIT检测器以及KONUS / WIND监视器进行的。记录了更多数量级的事件,未在其他实验中得到任何证实。GRB和太阳耀斑或磁层瞬变事件都可能在其中。IBIS / ISGRI望远镜记录了具有已确认和先前未知的宇宙GRB基本参数的目录。已经构造和研究了各种参数下突发的统计分布。GRB和太阳耀斑或磁层瞬变事件都可能在其中。IBIS / ISGRI望远镜记录了具有已确认和先前未知的宇宙GRB基本参数的目录。已经构造和研究了各种参数下突发的统计分布。GRB和太阳耀斑或磁层瞬变事件都可能在其中。IBIS / ISGRI望远镜记录了具有已确认和先前未知的宇宙GRB基本参数的目录。已经构造和研究了各种参数下突发的统计分布。
更新日期:2019-12-16
down
wechat
bug