The optical variability of the quasar 3C345 over a timespan of 3,965 d (1965-1976) is examined. The light curve has been analyzed quantitatively using a procedure suggested by Deeming (1975) for the Fourier analysis of unequally spaced data. The power spectrum shows three peaks with periods of 1540, 800 and 140 d. A harmonic solution which reproduces the complex maxima and single burst with fair accuracy has been obtained.

The optical variability of 3C345

BARBIERI, CESARE;ROMANO, GIULIANO;
1977

Abstract

The optical variability of the quasar 3C345 over a timespan of 3,965 d (1965-1976) is examined. The light curve has been analyzed quantitatively using a procedure suggested by Deeming (1975) for the Fourier analysis of unequally spaced data. The power spectrum shows three peaks with periods of 1540, 800 and 140 d. A harmonic solution which reproduces the complex maxima and single burst with fair accuracy has been obtained.
1977
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2498962
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