Period variation and spot model for the W UMa type binary TY UMa

We present the full VRI light curves and the times of minima of TY UMa to provide a complete photometric solution and a long-term trend of period variation. The light curves show a high degree of asymmetry (the O'Connell effect). The maxima at 0.25 phase (Max I) are 0.021, 0.015, and 0.020 mag...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2002-04, Vol.331 (3), p.707-716
Hauptverfasser:	Kang, Young Woon, Oh, Kyu-Dong, Kim, Chun-Hwey, Hwang, Changdeok, Kim, Ho-il, Lee, Woo-Baik
Format:	Artikel
Sprache:	eng
Schlagworte:	binaries: eclipsing stars: individual: TY UMa stars: magnetic fields
Online-Zugang:	Volltext
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