Photographic and spectroscopic observations of four type I supernovae

Details Photographic and spectroscopic observations of four type I supernovae Photographic and spectroscopic observations of four type I supernovae

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....57...73c&link_type=abstract

Astronomy and Astrophysics, vol. 57, no. 1-2, May 1977, p. 73-83.

Astronomy and Astrophysics

Astrophysics

26

Astronomical Photography, Light Curve, Spectroscopic Analysis, Stellar Spectrophotometry, Supernovae, Radial Velocity, Stellar Magnitude, Stellar Spectra

Scientific paper

Photographic and spectroscopic observations of four type I supernovae (1972-j in NGC 7634, 1973-n in NGC 7495, 1974-g in NGC 4414, and 1974-j in NGC 7343) have been carried out. B and V light curves, colors, distances, absolute magnitudes, and redshifts have been derived from available data. It has been shown that the galaxy NGC 7343 very likely is associated with the high-redshift members of Stephan's Quintet and that all components of the group have a distance of the order of 60 Mpc, corresponding to their mean redshift. Some alternative interpretations of the spectra of type I supernovae have been briefly discussed.

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