2005/05/02 by Yang Su, Yang Chen · 3 citations
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Ejecta #Galaxy #Gamma-ray bursts and supernovae #Interstellar medium #Jet (fluid) #Line-of-sight #Physics #Supernova #Supernova remnant #astro-ph
paper · pdf · doi:10.1088/1009-9271/5/4/008
published in 天文和天体物理学研究：英文版 5(4), 412-418 · 9 pages, 4 embedded figures, Chinese Journal of Astronomy and Astrophysics (ChJAA), in press
arxiv created 2005/05/02 · openalex publication_date 2005/08/01 · arxiv updated 2014/10/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present narrow-band and equivalent width (EW) images of the thermal composite supernova remnant (SNR) 3C 391 in the X-ray emission lines of Mg, Si and S using the Chandra ACIS Observational data. The EW images reveal the spatial distribution of the emission of the metal species Mg, Si and S in the remnant. They have a clumpy structure similar to that seen in the broadband diffuse emission, suggesting that they are largely of interstellar origin. We find an interesting finger-like feature protruding outside the southwestern radio border of the remnant, somewhat similar to the jet-like Si structure found in the famous SNR Cas A. This feature may possibly be the debris of the jet of ejecta from an asymmetrical supernova explosion of a massive progenitor star.