X-ray observations of the supernova remnant W 44.
Abstract
The authors present Einstein Observatory X-ray observations of the supernova remnant W44 (G34.7-0.4). The X-ray morphology is centrally peaked and shows an anti-correlation with the radio shell. X-ray spectral data indicate a temperature for the emitting plasma of approximately 1 keV. The authors suggest a model for W44 in which the remnant is in its late adiabatic phase. The soft X-ray shell has become too cool to be observable through the intervening ISM, yet a hotter interior remains visible. W44 would then appear to fit in reasonably well with the generally accepted evolution of shell-like remnants and a Crab-like component is not required to explain the X-ray morphology.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 1985
- DOI:
- 10.1093/mnras/217.1.99
- Bibcode:
- 1985MNRAS.217...99S
- Keywords:
-
- Astronomical Models;
- Radio Sources (Astronomy);
- Supernova Remnants;
- X Ray Sources;
- Heao 2;
- Interstellar Matter;
- Molecular Clouds;
- Plasma Temperature;
- X Ray Spectra;
- Astronomy