Observational study of ion-electron equilibration and of cloud evaporation in supernova remnants under the HEAO-2 guest investigator program

Details Observational study of ion-electron equilibration and of cloud evaporation in supernova remnants under the HEAO-2 guest investigator program Observational study of ion-electron equilibration and of cloud evaporation in supernova remnants under the HEAO-2 guest investigator program

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8713365t&link_type=abstract

Final Project Report, 1 Jun. 1985 - 30 Sep. 1986 Michigan Univ., Ann Arbor. Dept. of Astronomy.

Astronomy and Astrophysics

Astronomy

Electron Energy, Emission Spectra, Nonequilibrium Ionization, Stellar Coronas, Supernova Remnants, X Ray Spectra, Interstellar Matter, Line Spectra, Plasma Clouds, Shock Fronts

Scientific paper

Observations of three selected supernovae remnants (Cygnus Loop, IC 443, and Puppis A) were made in the forbidden coronal iron lines (Fe X) lambda 6374 and (Fe XIV) lambda 5303. The resulting data was compared quantitatively with Einstein images of the same objects, and an attempt was made to determine (a) the process by which ion and electron energies are equilibrated behind the shock front in the ISM and (b) whether cloud evaporation occurs within the hot remnant interiors. Spatially-resolved X ray emission were modeled for Sedov-Taylor blast wave models of supernovae remnants (SNR) under conditions of non-equlibrium ionization. The computations are intended to provide results that can be directly compared with Einstein high resolution image (HRI) and imaging proportional counter (IPS) data. The computer program for predicting the spatial distribution of HRI and IPS counting rates was completed, and final testing of it had begun.

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