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Title:
ROSAT observations of VRO 42.05.01
Authors:
Burrows, David N.; Guo, Zhiyu
Affiliation:
AA(The Pennsylvania State University, University Park, PA, US), AB(The Pennsylvania State University, University Park, PA, US)
Publication:
Astrophysical Journal, Part 2 (ISSN 0004-637X), vol. 421, no 1, p. L19-L22 (ApJL Homepage)
Publication Date:
01/1994
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
DATA PROCESSING, FLUX DENSITY, RADIO SPECTRA, SPATIAL DISTRIBUTION, SUPERNOVAE, ATMOSPHERIC DENSITY, FIELD OF VIEW, HEAO 1, LINE OF SIGHT, ROSAT MISSION
DOI:
10.1086/187177
Bibliographic Code:
1994ApJ...421L..19B

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.

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