UV spectrum of supernova remnant reveals carbon depletion in the interstellar medium

Details UV spectrum of supernova remnant reveals carbon depletion in the interstellar medium UV spectrum of supernova remnant reveals carbon depletion in the interstellar medium

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.277...99b&link_type=abstract

Nature, vol. 277, Jan. 11, 1979, p. 99-102.

Astronomy and Astrophysics

Astronomy

18

Carbon, Depletion, Interstellar Chemistry, Supernova Remnants, Ultraviolet Spectra, Abundance, Cooling, Emission Spectra, Graphite, Line Spectra, Mass Distribution, Propagation Velocity, Shock Waves, Spaceborne Astronomy

Scientific paper

The far-UV emission line spectrum of a filament in the Cygnus Loop is reported. The filament is a supernova remnant, and the measurements suggest that carbon, initially depleted in the gaseous phase by a factor of 10, is progressively returned to this phase. It is thought that this return results from destruction of graphite grains in the high-temperature post-shock region. The UV data are used to derive a very accurate shock velocity.

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