On the density and energy of supernova remnants

Details On the density and energy of supernova remnants On the density and energy of supernova remnants

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....61..641c&link_type=abstract

Astronomy and Astrophysics, vol. 61, no. 5, Dec. 1977, p. 641-645. Research supported by the Consejo Nacional de Ciencia y Tecn

Astronomy and Astrophysics

Astrophysics

15

Astrophysics, Interstellar Magnetic Fields, Shock Waves, Supernova Remnants, Density Distribution, Energy Distribution, Equilibrium Flow, Flow Characteristics, Flow Equations, Gas Flow, Radiative Transfer, Shock Fronts, Sulfur

Scientific paper

The effects of an interstellar magnetic field on the gas flow behind a strong shock front are considered. The ambient density and energy of supernova remnants are estimated from the intensity ratio of sulfur lines I(6717)/I(6731). It is found that, on average, the ambient density around galactic supernova remnants is 4 per cu cm. The total energy appears to be the same for all supernova remnants (to within a factor of about 5). A mean value of 4 by 10 to the 51st power erg is found.

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