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Centro de Astrofísica da Universidade do Porto

Rotation of T Tauri Stars Revisited

L. J. R. Machado, M. T. V. T. Lago, J. J. G. Lima

This paper reviews the rotation of T Tauri stars. It summarizes the results of a complete bibliographical survey of all photometric and spectroscopic data available in connection with rotation studies of these stars. It is shown that T Tauri stars are slow rotators. More than half of the stars in the sample have been found to have v sin i < 25 km/s.

Furthermore, the histogram for the photometric periods of rotation is clearly bimodal, with a peak at approximately 3 days and another at around 8 days.

Astrophysics and Space Science
Volume 261, Page 69
January 1999

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