Evolution of the light curve of V410 Tau during 1986-1997

Details Evolution of the light curve of V410 Tau during 1986-1997 Evolution of the light curve of V410 Tau during 1986-1997

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999astl...25..526g&link_type=abstract

Astronomy Letters, Volume 25, Issue 8, August 1999, pp.526-535

Astronomy and Astrophysics

Astronomy

6

Scientific paper

Homogeneous UBVR observations of the spotted T Tauri star V410 Tau during 1986-1997 are presented. Over the twelve years, this star has exhibited periodic light variations (P = 1.872095 days), which are attributable to the presence of cool spotted regions on its surface. The stability of the phase of minimum light throughout the entire period of observations was confirmed. Model calculations show that, first, the spot temperature is lower than the photospheric temperature at least by 1450 K, and, second, spotted regions cover from 29 to 42% of the visible stellar hemisphere at maximum light and from 61 to 67% at minimum light. The causes of the year-to-year changes in the mean level and amplitude of the light curve are discussed.

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