X-ray spectroscopy of SNR E0102-72 with the ASCA satellite

Details X-ray spectroscopy of SNR E0102-72 with the ASCA satellite X-ray spectroscopy of SNR E0102-72 with the ASCA satellite

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasj...46l.121h&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan, vol. 46, no. 3, p. L121-L124

Astronomy and Astrophysics

Astrophysics

37

Emission Spectra, Supernova Remnants, X Ray Sources, X Ray Spectra, Abundance, Nonequilibrium Ionization, X Ray Spectroscopy

Scientific paper

The Advanced Satellite for Cosmology and Astrophysics (ASCA) satellite has obtained a moderate-resolution energy spectrum of E0102-72, the brightest Supernova Remnant (SNR) in the Small Magellanic Cloud (SMC). This paper reports on the first results of the analysis of the high quality spectrum of E0102-72. The spectrum shows resolved emission lines of He-like K alpha, H-like K alpha and K beta from oxygen, neon, and magnesium. The intensity ratios of these lines cannot be explained by a multi-component plasma model with uniform abundances, but requires abundance inhomogeneity in the plasma. We demonstrate how the spectral capabilities of the ASCA SIS make available new diagnostics of X-ray plasmas in a state of non-equilibrium ionization. Some interpretation based on the spectral analysis is also given.

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