A spectroscopic survey of supernova remnant candidates in the 6000-6800 A spectral region - General discussion

Details A spectroscopic survey of supernova remnant candidates in the 6000-6800 A spectral region - General discussion A spectroscopic survey of supernova remnant candidates in the 6000-6800 A spectral region - General discussion

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....52...93d&link_type=abstract

Astronomy and Astrophysics, vol. 52, no. 1, Oct. 1976, p. 93-98. Research supported by the Consiglio Nazionale delle Ricerche.

Astronomy and Astrophysics

Astrophysics

45

Astronomical Spectroscopy, Interstellar Gas, Line Spectra, Supernova Remnants, Emission Spectra, H Alpha Line, Nitrogen, Shock Wave Propagation, Sulfur

Scientific paper

Recent spectroscopic observations of SNR candidates and available data are used to study the evolutionary behavior of the line intensity ratios H-alpha/forbidden N II, 6717-A/6731-A (both from forbidden SII), and H-alpha/forbidden S II. It is shown that the first two ratios vary as a function of the expansion velocity of the SNR. Physical implications of the observed sequence are discussed in the framework of Cox's (1972) model of a shock wave propagating in the interstellar medium.

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