Spectra of SN 1980k in NGC 6946

Details Spectra of SN 1980k in NGC 6946 Spectra of SN 1980k in NGC 6946

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...114..216b&link_type=abstract

Astronomy and Astrophysics, vol. 114, no. 1, Oct. 1982, p. 216-218.

Astronomy and Astrophysics

Astrophysics

8

H Alpha Line, Stellar Spectra, Supernovae, Atomic Energy Levels, Calcium, Emission Spectra, Flux Density

Scientific paper

Spectra are presented of the Type II SN 1980k in NGC 6946 obtained with the Reticon system of Asiago Observatory on 29 and 30 December 1980, approximately 60 d past the V-light maximum. One spectrum extends to 9900 A and shows the near infrared Ca II triplet in emission. The prominent emissions are H-alpha and the complex region around 8560 A. The profile of H-alpha is quite complex, with the peak of intensity blue-shifted by some 650 km/sec and the blue wing falling down rapidly to reach a shallow minimum at 6440 A, while on the red side the line drops more slowly and can be traced to at least plus 6000 km/sec.

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