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Title:
X-ray spectroscopy of the young supernova remnant RCW 86
Authors:
Kaastra, J. S.; Asaoka, I.; Koyama, K.; Yamauchi, S.
Affiliation:
AA(SRON, Lab. for Space Research, Leiden, Netherlands), AB(Max-Planck-Inst. fuer Extraterrestrische Physik, Garching, Germany), AC(Kyoto Univ., Japan), AD(Nagoya Univ., Japan)
Publication:
Astronomy and Astrophysics (ISSN 0004-6361), vol. 264, no. 2, p. 654-660. (A&A Homepage)
Publication Date:
10/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
STELLAR SPECTRA, SUPERNOVA REMNANTS, X RAY ASTRONOMY, EARLY STARS, GINGA SATELLITE, SUPERNOVAE
Bibliographic Code:
1992A&A...264..654K

Abstract

An X-ray spectrum of the bright supernova remnant RCW 86 taken by the Japanese X-ray satellite Ginga is analyzed with non-equilibrium ionization models. The spectrum, after correction for galactic ridge emission, is consistent with a type II supernova explosion. From the identification with the historical remnant of A.D. 185 a distance of 0.95 +/- 0.4 kpc is derived. The massive progenitor had a mass of at least 22 solar masses, and went off in a medium modified by its stellar wind with an explosion energy of 2 x 10 exp 44 J. The abundances of Si, S, and Fe are below the solar abundances: 0.7, 0.7, and 0.2 respectively.

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