High-resolution X-ray observations of the Cassiopeia A supernova remnant with the Einstein Observatory

Abstract

view Abstract Citations (71) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS High-resolution X-ray observations of the Cassiopeia A supernova remnant with the Einstein Observatory. Murray, S. S. ; Fabbiano, G. ; Fabian, A. C. ; Epstein, A. ; Giacconi, R. Abstract Cas A was observed with the imaging detectors on the Einstein X-ray Observatory. The mass of the expanding shell due to the interaction of the blast wave and the ambient medium is determined. This indicates that Cas A is probably not in the free expansion phase, but has not yet reached the adiabatic phase of expansion. Detailed comparison of X-ray, optical, and radio images shows various degrees of correlation, indicating that several processes for emission are present. An upper limit of 1,500,000 K is established for any stellar remnant that is below the expected temperature of a neutron star by a factor of about 5. The total mass of the SNR is found to be 10-30 solar masses Publication: The Astrophysical Journal Pub Date: November 1979 DOI: 10.1086/183111 Bibcode: 1979ApJ...234L..69M Keywords: Cassiopeia Constellation; Heao 2; Supernova Remnants; X Ray Astronomy; Astronomical Observatories; Astrophysics; High Resolution; Neutron Stars; Astrophysics; Masses:Supernova Remnants; Supernova Remnants:Structure; Supernova Remnants:X-Ray Spectra full text sources ADS |