X-ray spectrum of Kepler's supernova remnant

Details X-ray spectrum of Kepler's supernova remnant X-ray spectrum of Kepler's supernova remnant

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237l..77b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 237, May 1, 1980, p. L77-L79.

Astronomy and Astrophysics

Astronomy

52

Astronomical Spectroscopy, Spaceborne Astronomy, Supernova Remnants, X Ray Astronomy, Abundance, Emission Spectra, Heao 2, Nebulae, Solid State Devices

Scientific paper

Observations made with the Solid State Spectrometer (SSS) aboard the Einstein Observatory confirm Kepler's SNR as an X-ray source with an intensity between 1 and 3 keV of 7.2 x 10 to the -11th ergs/sq cm s. The X-ray spectrum is similar to those of Cas A and Tycho, with strong line emission from the helium-like species of Si, S, and Ar. Direct comparisons to Tycho's SNR suggest a distance to Kepler's SNR of not less than 5 kpc.

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