Constraints on a hadronic model for unidentified off-plane galactic gamma-ray sources

被引：3
|
作者：
Domainko, Wilfried F. [1 ]
机构：
[1] Max Planck Inst Kernphys, D-69115 Heidelberg, Germany
来源：
ADVANCES IN SPACE RESEARCH | 2011年 / 47卷 / 04期
关键词：
Galactic gamma-ray sources; Supernova remnants; Compact binary merger remnants; BINARY; REMNANT; GALAXY;
D O I：
10.1016/j.asr.2010.10.016
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Recently the H.E.S.S. collaboration announced the detection of an unidentified gamma-ray source with an off-set from the galactic plane of 3.5 degrees: HESS J1507-622. If the distance of the object is larger than about one kpc it would be physically located outside the galactic disk. The density profile of the ISM perpendicular to the galactic plane, which acts as target material for hadronic gamma-ray production, drops quite fast with increasing distance. This fact places distance dependent constraints on the energetics and properties of off-plane gamma-ray sources like HESS J1507-622 if a hadronic origin of the gamma-ray emission is assumed. For the case of this source it is found that there seems to be no simple way to link this object to the remnant of a stellar explosions. (C) 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：640 / 644
页数：5
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