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Title:
G29.7-0.3: another supernova remnant with an identity crisis
Authors:
Becker, R. H.; Helfand, D. J.; Szymkowiak, A. E.
Affiliation:
AA(Virginia Polytechnic and State University, Blacksburg, VA), AB(Columbia University, New York, NY), AC(NASA, Goddard Space Flight Center, Greenbelt; Maryland, University, College Park, MD)
Publication:
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 268, May 15, 1983, p. L93-L97. (ApJL Homepage)
Publication Date:
05/1983
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
PULSARS, RADIO ASTRONOMY, SUPERNOVA REMNANTS, X RAY ASTRONOMY, ASTRONOMICAL MAPS, STELLAR ENVELOPES, STELLAR SPECTRA
DOI:
10.1086/184036
Bibliographic Code:
1983ApJ...268L..93B

Abstract

New radio and X-ray observations of the galactic supernova remnant G29.7-0.3 show that it is composed of two spectrally distinct components: a steep-spectrum, incomplete shell 3 arcmin in extent enclosing a flat-spectrum, X-ray emitting region 30 arcsec across. Thus, G29.7-0.3 joins the ranks of supernova remnants which exhibit a combination of Crab-like and shell remnant attributes. The Crab-like core has the highest ratio of X-ray radio luminosity of all the Crab-like remnants observed to date, suggesting that it is an extremely young object.

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