ROSAT Observations of VRO 42.05.01
Abstract
We present the first X-ray images and spectra of the unusual supernova remnant VRO 42.05.01, based on a 22,680 s observation of the remnant with the ROSAT Position Sensitive Proportional Counter (PSPC). The overall shape of the X-ray remnant is similar to that of the radio remnant, but the X-ray morphology differs from the radio morphology in that the X-ray emission is not edge-brightened. The X-ray data are consistent with an isothermal remnant with variations in absorbing column density across the remnant that probably account for some of the observed structure. The remnant has an X-ray temperature of approximately 8.5 x 106 K and an absorbing column of a few times 1021/sq cm. This absorbing column is surprisingly small for the nominal distance of 5 kpc, and requires a low mean density along this line of sight.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1994
- DOI:
- 10.1086/187177
- Bibcode:
- 1994ApJ...421L..19B
- Keywords:
-
- Data Processing;
- Flux Density;
- Radio Spectra;
- Spatial Distribution;
- Supernovae;
- Atmospheric Density;
- Field Of View;
- Heao 1;
- Line Of Sight;
- Rosat Mission;
- Astrophysics;
- ISM: SUPERNOVA REMNANTS;
- ISM: INDIVIDUAL ALPHANUMERIC: VRO 42.05.01;
- X-RAYS: ISM