GY TELESCOPII: A THERMALLY DECOUPLED NEAR-CONTACT BINARY

GY TELESCOPII: A THERMALLY DECOUPLED NEAR-CONTACT BINARY

GY Tel is a 12th magnitude short-period (0ḍ;446) eclipsing binary showing a very deep primary eclipse which differs largely in depth from the secondary one. The first photoelectric observations are presented. They were obtained at Bosque Alegre (Córdoba) and at CASLEO (San Juan) and define good UBV...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1988-03, Vol.100 (625), p.380-387
Hauptverfasser: LIPARI, SEBASTIAN L., SISTERO, ROBERTO F.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomical magnitude
Astronomy
Binary and multiple stars
Binary systems
Close binary stars
Comparison stars
Earth, ocean, space
Eclipsing binaries
Ephemerides
Exact sciences and technology
Light curves
Mathematical minima
Stars
Variable stars
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Zusammenfassung:GY Tel is a 12th magnitude short-period (0ḍ;446) eclipsing binary showing a very deep primary eclipse which differs largely in depth from the secondary one. The first photoelectric observations are presented. They were obtained at Bosque Alegre (Córdoba) and at CASLEO (San Juan) and define good UBV light curves for this system. Eight epochs of minimum light are presented and are included in a period study together with old photographic and visual observations. GY Tel is another short-period thermally decoupled system of special interest for theories of evolution and structure of close binary systems.
ISSN:0004-6280
1538-3873
DOI:10.1086/132181