Discovery of a fast radiative shock wave in the Cygnus Loop using the Hopkins Ultraviolet Telescope

Details Discovery of a fast radiative shock wave in the Cygnus Loop using the Hopkins Ultraviolet Telescope Discovery of a fast radiative shock wave in the Cygnus Loop using the Hopkins Ultraviolet Telescope

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379l..33b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 379, Sept. 20, 1991, p. L33-L36.

Astronomy and Astrophysics

Astronomy

48

Shock Wave Propagation, Spaceborne Astronomy, Stellar Radiation, Supernova Remnants, Ultraviolet Telescopes, Astro Missions (Sts), Emission Spectra, Interstellar Extinction

Scientific paper

Observations of the far-ultraviolet spectrum of a bright radiative filament on the eastern edge of the Cygnus Loop supernova remnant are described which were made through the Hopkins Ultraviolet Telescope aboard the Astro-1 Space Shuttle mission in December 1990. Observations include strong emission lines of C III 977, N III 991, and O VI 032, 1038 and many fainter lines. A comparison of this spectrum with shock model calculations indicates that the emission at this position in the Cygnus Loop is dominated by 170 km/s shock wave.

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