Physics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.2303d&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, Nov. 1985, p. 2303-2311.
Physics
178
Light Curve, Line Shape, Spectrum Analysis, Supernovae, Balmer Series, Comparison, H Lines, Spectral Energy Distribution, Stellar Color, Stellar Luminosity
Scientific paper
Mean light curves of Type I, II-P ("plateau"), and II-L ("linear") supernovae are plotted on a common scale and directly compared. The Type II-P light curve has a distinctive shape, but the shape of Type II-L bears a resemblance to that of Type I in both the B and V bands. The similarity raises the question of whether the underlying physics of Type II-L explosions is more like that of Type I than like that of Type II-P, contrary to the usual assumption. It is shown that for Tycho's and Kepler's supernovae, light-curve shape cannot distinguish between a Type I and Type II-L classification. The light curves of the principal examples of Zwicky's Type III, IV, and V supernovae are compared directly to the mean light curves of the main types. The authors suggest that these supernovae be referred to as II-pec, for "Type II peculiar".
Branch David
Doggett J. B.
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