Long-Term Photometry of the Symbiotic Nova V1329 Cyg

Details Long-Term Photometry of the Symbiotic Nova V1329 Cyg Long-Term Photometry of the Symbiotic Nova V1329 Cyg

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999coska..29...31c&link_type=abstract

Contributions of the Astronomical Observatory, vol. 29, p. 31

Computer Science

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10

Electrophotometry, Cygnus Constellation, Symbiotic Stars, Binary Stars, Trigonometric Functions, Ubv Spectra, Stellar Spectrophotometry, Data Bases, Error Analysis, Phase Diagrams, Linear Systems, Novae

Scientific paper

New UBV photometry of the symbiotic nova V1329 Cyg taken in 1988-97 is presented. Long-term postoutburst UBV photoelectric, photographic and visual observations from the AAVSO (American Association of Variable Star Observers) and AFOEV (Association Francaise des Observateurs d'Etoiles Variables) databases are discussed. The periodogram analysis using the trigonometric polynomial fit with a linear trend reveals the mean normal epoch of the minimum and the mean best fit period as JD 2446771 plus or minus 3 d and 956. d5 plus or minus O. d, respectively. The amplitude of the brightness variations is significantly higher in the U-band (1. m)6 than in the B,V and pg bands (1. m)22. The largest slope of the mean brightness decrease is in the U-band. The characteristics of the light-curves extremes in different bands are tabulated. The phases of the U,B,V light-curves coincide within the error estimates. A secondary period of 553 d and a cycle of approximately equal to 5300 d are suggested.

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