Observations of Supernovae at the Astrophysical Observatory of Asiago

Abstract

Since 1959 a program of systematic search of supernovae was carried out at Asiago with the 40 cm Schmidt telescope. The survey, which at first was limited to 36 high galactic latitude fields, was later extended to 74 fields and brought to the discovery of 21 supernovae. Later on, in 1964, when a second Schmidt telescope of 67 cm became available at Asiago, a new program concerning the determination of B and V light curves was initiated. At the same time spectra of the brightest supernovae were successfully obtained at the newtonian focus of the 122 cm telescope, with dispersions from 130 to 280 A/mm at H_j. The use of image-tubes, after 1968, allowed us to extend the spectroscopic observations to supernovae as faint as magn.16. A complete bibliography of the supernovae observed at Asiago from 1957 to 1972, together with the principal results of the survey, is reported in the Proceedings of the Lecce International Conference (Rosino and di Tullio,1974).