,Thin Circular Disc Shells of Radio Sources Around Supernova Remnant G16.2-2.7

• 作 者: 俞志尧
• 机 构: Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030 ,National Astronomic
• 出 处: 中国物理快报（英文版）
• 发表日期: 2002年11期

We propose a new model of distinct thin circular disc shells to analyse the radio map of the supeova remnant (SNR) G16.2-2.7 from NRAO VLA Sky Survey at 1.4 GHz and the radio sources around it. It is obtained that the 20 radio sources around the SNR G16.2-2.7 distribute on the four thin circular disc shells. The results support the shell-like structure strongly and further indicate that the shell-like structure is several thin circular disc shells. Because the shell-like structure dominates the total sample, our result is important for research of the radio morphology of SNRs.