Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.2218b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, Nov. 1985, p. 2218-2220.
Astronomy and Astrophysics
Astronomy
13
H Lines, Spectrum Analysis, Stellar Luminosity, Supernovae, Emission Spectra, Light Curve, Line Spectra
Scientific paper
SN 1957a in NGC 2841 has been considered to have been a Type II supernova because hydrogen lines were identified in its spectrum. The authors show that the spectrum did not contain hydrogen lines, and was that of a Type I supernova. The post-peak decline of the light curve also was like that of a Type I, but SN 1957a appears to have had a narrow light-curve peak and to have been subluminous by perhaps 2 mag.
Branch David
Doggett J. B.
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