Absolute Light Curves of Stripped Envelope Supernovae

Details Absolute Light Curves of Stripped Envelope Supernovae Absolute Light Curves of Stripped Envelope Supernovae

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.4501r&link_type=abstract

American Astronomical Society Meeting 203, #45.01; Bulletin of the American Astronomical Society, Vol. 35, p.1277

Astronomy and Astrophysics

Astronomy

Scientific paper

The absolute visual peak magnitudes of 10 Type Ib, 13 Type Ic and two Type IIb supernovae are studied by collecting data on the apparent magnitude, distance, and interstellar extinction of each event. Weighted and unweighted mean absolute magnitudes of the combined sample as well as various subsets of the sample are reported. The limited sample size and the considerable uncertainties, especially those associated with extinction in the host galaxies, still prevent firm conclusions regarding differences between the absolute peak magnitudes of supernovae of Type Ib and Ic, and regarding the existence of separate groups of overluminous and normal-luminosity supernovae Ibc. The spectroscopic characteristics of the events of the sample are considered. Three of the four overluminous events are known to have had unusual spectra. Most but not all of the normal luminosity events had typical spectra. Absolute light curves are compared to analytic and numerical models to determine some physical parameters for supernovae where there is enough data. The well observed SN1994I, which is typically considered a normal type Ic, is shown to have the fastest light curve in the sample.

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