伽玛暴(Gamma-Ray Burst)笔记。记录有关伽玛暴的新文章,另外也包括看的老文章、自己的想法、以及跟天文相关的一些东西。 Feel free to leave me a message by comments or by email.

星期四, 二月 17, 2011

Vieregg 2011 对GRB090107A超高能中微子的限制

主要内容:


精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)
· arXiv e-print (arXiv:1102.3206)
· References in the Article
·
· Translate This Page
Title:
The First Limits on the Ultra-high Energy Neutrino Fluence from Gamma-ray Bursts
Authors:
Vieregg, A. G.Palladino, K.Allison, P.Baughman, B. M.Beatty, J. J.Belov, K.Besson, D. Z.Bevan, S.;Binns, W. R.Chen, C.Chen, P.Clem, J. M.Connolly, A.Detrixhe, M.De Marco, D.Dowkontt, P. F.;DuVernois, M.Gorham, P. W.Grashorn, E. W.Hill, B.Hoover, S.Huang, M.Israel, M. H.Javaid, A.;Liewer, K. M.Matsuno, S.Mercurio, B. C.Miki, C.Mottram, M.Nam, J.Nichol, R. J.Romero-Wolf, A.;Ruckman, L.Saltzberg, D.Seckel, D.Varner, G. S.Wang, Y.
Publication:
eprint arXiv:1102.3206
Publication Date:
02/2011
Origin:
ARXIV
Keywords:
Astrophysics - High Energy Astrophysical Phenomena
Comment:
4 pages, 2 figures, submitted to ApJ
Bibliographic Code:
2011arXiv1102.3206V

Abstract

We set the first limits on the ultra-high energy (UHE) neutrino fluence at energies greater than 10^9 GeV from gamma-ray bursts (GRBs) based on data from the second flight of the ANtarctic Impulsive Transient Antenna (ANITA). During the 31 day flight of ANITA-II, 26 GRBs were recorded by Swift or Fermi. Of these, we analyzed the 12 GRBs which occurred during quiet periods when the payload was away from anthropogenic activity. In a blind analysis, we observe 0 events on a total background of 0.0044 events in the combined prompt window for all 12 low-background bursts. We also observe 0 events from the remaining 14 bursts. We place a 90% confidence level limit on the E^-4 prompt neutrino fluence of 2.5x10^17 GeV^3/cm^2 between 10^8 and 10^12 GeV from GRB090107A. This is the first reported limit on the UHE neutrino fluence from GRBs above 10^9 GeV, and the strongest limit above 10^8 GeV.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

没有评论: