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2010MNRAS.403..159S - Mon. Not. R. Astron. Soc., 403, 159-169 (2010/March-3)
Dynamo processes in the T Tauri star V410 Tau.
SKELLY M.B., DONATI J.-F., BOUVIER J., GRANKIN K.N., UNRUH Y.C., ARTEMENKO S.A. and PETROV P.
Abstract (from CDS):
A photometric monitoring campaign on this star has previously revealed V-band variability of up to 0.6 mag, but in 2009 the light curve is much flatter. The Doppler image presented here is consistent with this low variability. Calculating the flux predicted by the mapped spot distribution gives a peak-to-peak variability of 0.04 mag. The reduction in the amplitude of the light curve, compared with previous observations, appears to be related to a change in the distribution of the spots rather than the number or area.
This paper is the first from a Zeeman-Doppler imaging campaign being carried out on V410 Tau between 2009 and 2012 at the TBL. During this time, it is expected that the light curve will return to a high-amplitude state, allowing us to ascertain whether the photometric changes are accompanied by a change in the magnetic field topology.
Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS
Journal keyword(s): stars: formation - stars: individual: V410 Tau - stars: magnetic fields - stars: pre-main-sequence - stars: rotation
Simbad objects: 8
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