Chen 2009 ARGO-YBJ对伽玛暴超高能辐射的限制

主要内容:
给出了31个暴的10-1000GeV的上限, 大致都在1E-5 erg/cm^2的量级.

但是Fermi LAT能给出约为 5E-7 erg/cm^2的上限, 能段 20-300GeV.

精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)

· arXiv e-print (arXiv:0903.0119)

· References in the Article

·

· Translate This Page

Title:		ARGO-YBJ constraints on very high energy emission from GRBs
Authors:		Chen, S. Z; He, H. H; for the ARGO-YBJ Collaboration
Publication:		eprint arXiv:0903.0119
Publication Date:		02/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		13 pages, 5 figures
Bibliographic Code:		2009arXiv0903.0119C

Abstract

The ARGO-YBJ experiment is designed for very high energy gamma-astronomy and cosmic ray researches. With a large sensitive area fully covered with resistive plate chambers at a very high altitude (4300m a.s.l.), the ARGO-YBJ detector is used to search for transient phenomena, such as gamma-ray bursts(GRB). Because the ARGO-YBJ detector has a large field of view (FOV>2sr) and is operated in a full duty cycle (>90%), it is one of the best ground-based GRB surveying apparatuses. Working at a relatively high energy threshold around few hundred GeV, the ARGO-YBJ detector is operated in searches for high energy GRBs following alarms set by satellite borne observations at lower energies. In this paper, a sensitivity of the ARGO-YBJ detector for GRB detection is estimated. Upper limits of fluence with 99% confidence level of 31 GRBs inside the FOV from June 2006 to January 2009 are set in two energy ranges of 10GeV-100GeV and 10GeV-1TeV.

---

Bibtex entry for this abstract Preferred format for this abstract (see Preferences)