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

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

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.1796l&link_type=abstract

Astronomical Journal v.110, p.1796

Astronomy and Astrophysics

Astronomy

7

Binaries: Close, Stars: Individual: Gr Tauri, Binaries: Eclipsing

Scientific paper

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.

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