X-ray spectroscopy and imagery of supernova remnants with the Einstein Observatory

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Heao 2, Line Spectra, Supernova Remnants, X Ray Imagery, X Ray Sources, X Ray Spectra, Abundance, Bursts, Doppler Effect, Focal Plane Devices, Spectrum Analysis, Thermal Emission

Scientific paper

The two complementary spectroscopic instruments of the Einsten Observatory make possible X-ray spectroscopy of SNRs with considerably increased sensitivity and spectral resolution. The Solid State Spectrometer is a cryogenically cooled detector with 160 eV resolution, which suffices not only for the separation of lines due to different elements, but also the resolution of H-like, He-like and neutral lines from the same element for Si and above. The Focal Plane Crystal Spectrometer uses Bragg crystals to achieve excellent spectral resolution, but at the expense of sensitivity. Both instruments operate over most of the 0.2-4 keV energy band of the Einstein telescope, and are able to detect most of the important X-ray lines except the K lines of Fe and Ni.

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