X-Ray Emission from Supernova Remnants Observed in the ASCA Galactic Plane Survey

作者：Yamauchi Shigeo^*; Ueno Masaru; Koyama Katsuji; Bamba Aya

来源：Publications of the Astronomical Society of Japan, 2008, 60(5): 1143-1150.

• ISM: individual (G12.0-0.1, G346.6-0.2, G348.5+0.1, G348.7+0.3, G355.6-0.0)
• ISM: supernova remnants
• X-rays: ISM
• X-rays: spectra

X-ray images and spectra of 5 cataloged supernova remnants (SNRs: G12.0-0.1, G346.6-0.2, G348.5+0.1, G348.7+0.3, and G355.6-0.0) observed in the ASCA galactic plane survey are presented. The sizes of X-ray emission from G12.0-0.1, G348.5+0.1, G348.7+0.3, and G355.6-0.0 are comparable to their radio structures, while that of G346.6-0.2 is smaller. The X-ray spectra of all the SNRs were heavily absorbed by interstellar matter with N(H) > 10(22) cm(-2). The spectrum of G355.6-0.0 exhibited emission lines, indicating that the X-ray emission has a thin thermal plasma origin, and was well represented by a two-temprature thin thermal emission model. On the other hand, no clear emission-line features were found in the spectre. of the others, and the spectra could be represented by either a thin thermal emission model or a power-law model

• 出版日期2008