Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ssrv...50..257h&link_type=abstract
(IAU, NSERC, Canadian Institute of Theoretical Astrophysics, et al., Colloquium on Algols, 107th, Sidney, Canada, Aug. 15-19, 19
Astronomy and Astrophysics
Astrophysics
4
Eclipsing Binary Stars, Light Curve, Line Spectra, Stellar Luminosity, Stellar Spectrophotometry, Gallium Arsenides, Near Infrared Radiation, Photometers, Photomultiplier Tubes, Signal To Noise Ratios
Scientific paper
The Utrecht Photometric System (UPS), a narrow-band photometric system with wavelength regions in which no telluric lines and almost no stellar/interstellar spectral lines are present, is discussed. The UPS design include photomultipliers with GaAs cathodes that have high sensitivity up to 900 nm. The system and its operation are described. Results are presented from using the UPS to study the components of eclipsing binaries obtained from light curves.
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