A Study of the Binary GR Tauri from Optical and Infrared Observations

Lazaro, C.; Niarchos, P.; Rovithis, P.; Rovithis-Livaniou, E.; Arevalo, M. J.; Antonopoulou, E.
Referencia bibliográfica

Astronomical Journal v.110, p.1796

Fecha de publicación:
10
1995
Número de autores
6
Número de autores del IAC
2
Número de citas
9
Número de citas referidas
5
Descripción
Visual and infrared light curves of the noncontact, short period, close binary system UR Tauri were obtained in 1992 November. A new ephemeris of the binary is given using the times of minima inferred from all the observations of the system to date. New light and photometric data from the analysis of the B, V and J,K light curves via the Wilson-Devinney code are also given, resulting in a "near-contact" binary model for the system. The analysis of the colors of UR Tauri shows that the primary component's spectral type must be about A9 V, instead of AS V according to a recent spectroscopic classification.