Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pasp...93..165d&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 93, Apr.-May 1981, p. 165-175.
Astronomy and Astrophysics
Astronomy
130
Astronomical Photometry, Light Curve, Novae, Stellar Magnitude, Astronomical Catalogs, Calibrating, Colorimetry, Spectral Line Width, White Dwarf Stars
Scientific paper
For 31 classical galactic novae and four recurrent novae distances, absolute magnitudes and extinction data are derived by different methods. A new absolute magnitude - t3 time relation is established. Two groups of novae are found: very fast and fast novae with smooth light curves and absolute magnitudes between -8 and -11, and fast, slow, and very slow novae with structured light curves and absolute magnitudes between -6 and -7. Group I exhibits quasi-instantaneous mass loss at a luminosity far above the Eddington limit. Group II exhibits continued radiation at the Eddington limit from a bloated white dwarf. A classification scheme for nova light curves which is useful in the context of the new luminosity calibration is described and applied to 95 novae.
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