A probable 3.0455-hr period in the outburst light curve of the recurrent nova V 404 Cyg.
Abstract
Photometric observations of the nova V4O4Cyg have been performed during 1989 May-July, immediately following its recent outburst. Measurements in the R photometric band have revealed periodic variability superposed on the general decline in the brightness of the star by 3 mag during that interval. The amplitude of the cyclic variation decreased from 0.24 mag in May-June, to 0.06 mag in July. A period analysis of the data suggests that the photometric cycle has a period of 3.0455 hr. This may well be the orbital period of the V4O4Cyg binary system.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 1991
- DOI:
- 10.1093/mnras/250.2.385
- Bibcode:
- 1991MNRAS.250..385L
- Keywords:
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- Astronomical Photometry;
- Light Curve;
- Novae;
- Stellar Flares;
- Power Spectra;
- Stellar Luminosity;
- Stellar Magnitude;
- Temporal Distribution;
- Astrophysics