Observation of Ultra high-energy Gamma-rays from SN1987a

SN1987a 超高能伽马射线的观测

• 批准号: 63044071
• 负责人: SATO Humitaka
• 金额: $ 7.68万
• 依托单位: Faculty of Science, Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Overseas Scientific Survey.
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63044071/
• 关键词: Super Nova; SN1987A; Cosmic Gamma-rays; Pulsar

A search for ultra high-energy gamma-ray emission from Supernova 1987A has been made from 13 October 1987 with the aid of the Monbusho International Scientific Research Program. Although we have not seen ultra high-energy gamma-rays from SN1987A (as of early 1990), the world's most stringent upper limits have been obtained in our experiment: Igamma<5.7X10^<-14>cm^2.s^<-1> for Egamma<greater than or equal>75 TeV. In January 1988, we observed very high-energy gamma-rays associated with the X-ray flare observed by the Ginga satellite. Since the recent optical curve of SN1987A indicates a pulsar component at L<less than or equal> 10^<38> erg.sec, it is important to continue this experiment to observe SN1987A.

在Monbusho International Scientific Researchs计划的帮助下，从1987年10月13日进行了Supernova 1987a的超高能量伽马射线排放的搜索。尽管我们还没有看到SN1987A（截至1990年初）的超高能量伽马射线，但在我们的实验中，已经获得了世界上最严格的上限：Igamma <5.7x10^<-14> cm^2.s^2.s^2.s^<-1>对于Egamma而言，Egamma <大于或相等> 75 TEV。 1988年1月，我们观察到与Ginga卫星观察到的X射线耀斑相关的非常高能量的伽马射线。由于最近的SN1987A的光学曲线表明L <小于或等于> 10^<38> erg.sec的脉冲星成分，因此继续进行该实验以观察SN1987A很重要。