EXOSAT Observations of the TYCHO Supernova Remnant
Abstract
The Gas Scintillation Proportional Counter and the Medium Energy Instruments on board EXOSAT were used to measure the X-ray spectrum of the Tycho supernova remnant over the range 1.5 - 10 keV. The emission lines due to S, Ar, Ca, and Fe (≡6.48 keV) are clearly resolved from the underlying continuum which is measured to have a temperature of 6.5±0.5 keV. From a consideration of all available X-ray observations it is suggested that the 6.5 keV continuum and the Fe K emission arise in the primary shock while the emission due to Si, S, Ar, and Ca and the emission observed in the LE are associated with the reverse shock.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1988
- DOI:
- 10.1086/166003
- Bibcode:
- 1988ApJ...325..288S
- Keywords:
-
- Astronomical Spectroscopy;
- Emission Spectra;
- Exosat Satellite;
- Supernova Remnants;
- X Ray Spectra;
- Continuous Spectra;
- Hydrodynamics;
- Proportional Counters;
- X Ray Sources;
- Astronomy;
- HYDRODYNAMICS;
- NEBULAE: SUPERNOVA REMNANTS;
- X-RAYS: SOURCES;
- X-RAYS: SPECTRA