Narrow Band Chandra X-ray Analysis of Supernova Remnant 3C391

Abstract

We present the narrow-band and the equivalent width (EW) images of the thermal composite supernova remnant (SNR) 3C391 for the X-ray emission lines of elements Mg, Si, & S using the Chandra ACIS Observational data. These EW images reveal the spatial distribution of the emission of the metal species Mg, Si, & S in the remnant. They have clumpy structure similar to that seen from 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, which is 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 which implies an asymmetrical supernova explosion of a massive progenitor star.

9 pages, 4 embedded figures, Chinese Journal of Astronomy and Astrophysics (ChJAA), in press

References in corpus (3)

• Young core collapse supernova remnants and their supernovae
• A Million-Second Chandra View of Cassiopeia A
• A Chandra ACIS view of the Thermal Composite Supernova Remnant 3C391

Cited by in corpus (3)

• Recombining Plasma in the Gamma-ray Emitting Mixed-Morphology Supernova Remnant 3C 391
• An Exploration of X-ray Supernova Remnants in the Milky Way and Nearby Galaxies
• The Heart-shaped Supernova Remnant 3C391 viewed in Multi-bands