CCD photometry of Nova V1974 Cygni in 1995

Details CCD photometry of Nova V1974 Cygni in 1995 CCD photometry of Nova V1974 Cygni in 1995

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aca....46..311o&link_type=abstract

Acta Astronomica, v.46, pp.311-323, (1996).

Other

4

Stars: Individual: V1974 Cyg, Binaries: Close, Novae: Cataclysmic Variables

Scientific paper

We report on analysis of I CCD photometry of Nova V1974 Cygni from the observational season 1995. The analysis shows that both short-term modulations with periods 0.0813 and 0.085 days (whose values are close to 2-day aliases of one another) are still present in the light curve of Nova V1974 Cygni. Contrary to the 1994 situation the amplitude of the 0.085-day modulation in 1995, was, on the average, smaller than the amplitude of the 0.0813-day modulation. The observations give evidence that the 0.0813-day period, interpreted as the orbital period of the system, decreased during the time interval 1993--1995. The 0.085-day period, observed as decreasing in 1994, stopped decreasing and seems to increase since the middle of 1995. The light curve of V1974 Cygni observed during some nights at the end of the 1995 season resembles the light curve of a polar with two sets of minima.

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