Infrared photometry of the RS CVn binaries. IV. SZ Piscium.
Abstract
Infrared light curves of the RS CVn-type binary SZ Piscium (HD 219113) in J, H, and K have been obtained between August 1978 and December 1979 and nearly sinusoidal light variations outside eclipses have been detected, similar to those observed in other RS CVn systems. The period of this variation is nearly equal to the orbital period and their amplitude decreases with increasing wavelength. Irregular light variations have also been observed. There is no conspicuous infrared excess attributable to circumstellar emission. This might have been expected because of the variability of the period of the system.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- June 1984
- Bibcode:
- 1984A&A...135...61A
- Keywords:
-
- Astronomical Photometry;
- Eclipsing Binary Stars;
- Infrared Photometry;
- Infrared Spectroscopy;
- Light Curve;
- Stellar Spectrophotometry;
- Infrared Astronomy;
- Near Infrared Radiation;
- Stellar Magnitude;
- Astronomy