Multi-wavelength study of MGRO J2019+37  

作　　者：侯超 陈松战 袁强 曹臻 何会海 盛祥东 

机构地区：[1]Institute of High Energy Physics, Chinese Academy of Sciences

出　　处：《Chinese Physics C》2014年第8期40-47,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11205165,11375210);Xiejialin Fund of Institute of High Energy Physics,Chinese Academy of Sciences(Y3546140U2)

摘　　要：MGRO J2019＋37, within the Cygnus region, is a bright extended source revealed by Milagro at 12 35 TeV. This source is ahnost as bright as the Crab Nebula in the northern sky, but is not confirmed by ARGO-YBJ around the TeV scale. Up to now, no obvious counterpart at low energy wavelengths has been found. Hence, MGRO J2019＋37 is a rather mysterious object and its VHE γ-ray emission mechanism is worth investigating. In this paper, a brief summary of the multi-wavelength observations from radio to γ-rays is presented. All the available data from XMM-Newton and INTEGRAL at X-ray, and Fermi-LAT at γ-ray bands, are used to get constraints on its emission flux at low energy wavelengths. Then, its possible counterparts and the VHE emission mechanism are discussed.MGRO J2019＋37, within the Cygnus region, is a bright extended source revealed by Milagro at 12 35 TeV. This source is ahnost as bright as the Crab Nebula in the northern sky, but is not confirmed by ARGO-YBJ around the TeV scale. Up to now, no obvious counterpart at low energy wavelengths has been found. Hence, MGRO J2019＋37 is a rather mysterious object and its VHE γ-ray emission mechanism is worth investigating. In this paper, a brief summary of the multi-wavelength observations from radio to γ-rays is presented. All the available data from XMM-Newton and INTEGRAL at X-ray, and Fermi-LAT at γ-ray bands, are used to get constraints on its emission flux at low energy wavelengths. Then, its possible counterparts and the VHE emission mechanism are discussed.

关 键 词：MGRO J2019＋37 MULTI-WAVELENGTH VHE γ-ray radiation mechanism 

分 类 号：P15[天文地球—天文学] P172