The Cygnus 'superbubble' - A supernova explosion in a tenuous intercloud medium

Details The Cygnus 'superbubble' - A supernova explosion in a tenuous intercloud medium The Cygnus 'superbubble' - A supernova explosion in a tenuous intercloud medium

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...244...88h&link_type=abstract

Astrophysical Journal, Part 1, vol. 244, Feb. 15, 1981, p. 88-93.

Astronomy and Astrophysics

Astronomy

8

Cygnus Constellation, Explosions, Interstellar Matter, Nebulae, Supernova Remnants, Astronomical Models, Emission Spectra, H Alpha Line, X Ray Astronomy

Scientific paper

Cash et al. (1980) observed an incomplete X-ray shell in the Cygnus region with a temperature of 2 x 10 to the 6th K and a density of 0.02 per cu cm. This feature closely resembles Loop I, a nearby supernova remnant expanding in a tenuous (less than 0.01 per cu cm) medium. A similar origin - remnant expansion in a tenuous intercloud medium with the bulk of the interstellar gas concentrated in clouds - is suggested for the Cygnus X-ray feature. This model greatly reduces the required initial thermal energy. Remnant shock interaction with ambient interstellar clouds produces the observed H-alpha filaments.

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