The changing light curves of CG Cygni

Details The changing light curves of CG Cygni The changing light curves of CG Cygni

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84..417m&link_type=abstract

Astronomical Journal, vol. 84, Mar. 1979, p. 417-428. Research supported by the National Research Council of Canada, Lutheran Ch

Other

38

Cygnus Constellation, Eclipsing Binary Stars, Electrophotometry, Light Curve, Stellar Spectrophotometry, Fourier Analysis, Ubv Spectra

Scientific paper

UBV photoelectric light curves of the eclipsing close binary CG Cyg, obtained in the period from 1965 through 1977, are reduced and analyzed. Positive evidence is found for: (1) an increase in mean light by about 14% in V since 1965; (2) a sinusoidal distortion wave sweeping through the light curve, currently at an increasing rate; and (3) another change in period, probably continuous, since the late 1960s. It is shown that the distortion has a significantly variable amplitude and (with marginal significance) is greater for shorter wavelengths, on the average. It is concluded that these results, combined with a large apparent IR excess and variation in the Ca II H and K lines, may indicate a major episode in the evolution of CG Cyg.

Affiliated with

Also associated with

No associations

Rating

The changing light curves of CG Cygni does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The changing light curves of CG Cygni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The changing light curves of CG Cygni will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1649000