Mathematics – Logic
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mmsai..49..331b&link_type=abstract
(Società Astronomica Italiana and Consiglio Nazionale delle Ricerche, Workshop on Supernovae and Supernova Remnants, 1st, Erice,
Mathematics
Logic
12
Light Curve, Stellar Spectrophotometry, Supernovae, Ubv Spectra, Astronomical Catalogs, Color, Galaxies, Stellar Luminosity
Scientific paper
Photometric properties of type I supernovae (SN I) are reviewed. Attention is given to average light and color curves of SN I and characteristics of the 'fast' and 'slow' subtypes. Correlations are examined whereby fast SN I are seldom observed in early-type galaxies, slow SN I do not occur in irregular galaxies, and both types are present in spirals. The photometric reality of the two subtypes is considered, and determinations of the absolute magnitude of SN I at maximum and its dispersion are discussed. It is concluded that, when the appropriate corrections are applied, there is no difference in the absolute luminosities of SN I that occur in galaxies of different morphological types.
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