Einstein Observations of the Cygnus Loop

Details Einstein Observations of the Cygnus Loop Einstein Observations of the Cygnus Loop

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..615k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 15, 1984, p. 615-618.

Astronomy and Astrophysics

Astronomy

99

Astronomical Models, Heao 2, Nebulae, Supernova Remnants, X Ray Imagery, X Ray Sources, Detonation Waves, High Resolution, Image Resolution, Interstellar Matter, X Ray Astronomy

Scientific paper

The imaging instruments on the Einstein Observatory were used to study the detailed X-ray structure of the Cygnus Loop. An arc minute resolution map of the 0.1-4.0 keV emission from the entire remnant was obtained with the imaging proportional counter (IPC). The bright northeastern and western limbs were mapped with the high resolution imager (HRI). The large-scale structure of the Loop is well modeled as a limb-brightened shell of hot gas at 2 x 10 to the 6th K created by the expansion of a blast wave into an inhomogeneous interstellar medium. The pulse-height data from the IPC indicate that the center of the remnant is generally hotter than the limb with temperatures as high as 4 x 10 to the 6th K. The X-ray maps show good general correlation with large-scale radio and optical structure, and in some cases good detailed correlation with faint optical filaments dominated by hydrogen line emission.

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