Detection of a new extended soft X-ray source H1538-32 - A possible old supernova remnant

Details Detection of a new extended soft X-ray source H1538-32 - A possible old supernova remnant Detection of a new extended soft X-ray source H1538-32 - A possible old supernova remnant

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235l..71r&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 235, Jan. 15, 1980, p. L71-L75.

Astronomy and Astrophysics

Astrophysics

12

Heao 2, Supernova Remnants, X Ray Sources, Energy Spectra, Radio Emission

Scientific paper

The discovery in the Lupus region of a new, extended soft X-ray source, H1538-32, is reported, having a distance of approximately 340 pc, and a luminosity of 1 to 2 x 10 to the 34th ergs/sec. The observed energy spectrum of the source is well fitted either by a thermal bremsstrahlung spectrum with Gaunt factor but without line emission, or by a coronal plasma model which includes the X-ray emission lines of various elements and the continuum as outlined by Raymond and Smith (1977). On the basis of the extended nature of the source and its thermal spectrum, it is suggested that H1538-32 may be an old supernova remnant.

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