Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13...45a&link_type=abstract
Advances in Space Research (ISSN 0273-1177), vol. 13, no. 12, p. (12)45-(12)55
Astronomy and Astrophysics
Astronomy
17
Absorption Spectra, Emission Spectra, Interstellar Matter, Shock Wave Interaction, Sky Surveys (Astronomy), Statistical Analysis, Supernova Remnants, X Ray Astronomy, Cold Gas, Proportional Counters, Radio Sources (Astronomy), Rosat Mission, Shock Fronts, Temperature Distribution, X Ray Imagery, X Ray Telescopes
Scientific paper
Spectrally resolved X-ray images of galactic supernova remnants (SNRs) have been obtained both from the ROSAT all-sky survey and a number of pointed observations. There is substantial evidence for significant spatial variation in temperature, density and pressure across the older, thermal remnants like the Vela SNR, the Cygnus Loop and the North Polar Spur. Both the brightness distribution and the pressure variations observed point towards recently shocked interstellar clouds and filaments, which dominate the X-ray emission pattern. Across the Puppis-A SNR an arc-shaped absorption structure has been detected, which is demonstrated to be produced by cold gas located close to the shock front of the Vela SNR. Across IC443 a similar absorption pattern has been observed, which is created by a cold shell associated with a previously unknown, ROSAT discovered SNR, which lies in front of IC443. Finally, a statistical overview of the SNRs detected in the ROSAT all-sky survey is presented. About half of the catalogued radio remnants have been observed in the survey and another 90 sources have been found which are considered to be candidates of new SNRs.
No associations
LandOfFree
X-ray emission from supernova remnants observed with ROSAT does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with X-ray emission from supernova remnants observed with ROSAT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray emission from supernova remnants observed with ROSAT will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-782601