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2009MNRAS.398..189H - Mon. Not. R. Astron. Soc., 398, 189-200 (2009/September-1)
Surface magnetic fields on two accreting TTauri stars: CV Cha and CR Cha.
HUSSAIN G.A.J., COLLIER CAMERON A., JARDINE M.M., DUNSTONE N., VELEZ J.R., STEMPELS H.C., DONATI J.-F., SEMEL M., AULANIER G., HARRIES T., BOUVIER J., DOUGADOS C., FERREIRA J., CARTER B.D. and LAWSON W.A.
Abstract (from CDS):
Only two other classical TTauri stars have been studied using similar techniques so far: V2129 Oph and BP Tau. CV Cha and CR Cha show magnetic field patterns that are significantly more complex than those recovered for BPTau, a fully convective TTauri star.
We discuss possible reasons for this difference and suggest that the complexity of the stellar magnetic field is related to the convection zone; with more complex fields being found in TTauri stars with radiative cores (V2129 Oph, CV Cha and CR Cha). However, it is clearly necessary to conduct magnetic field studies of TTauri star systems, exploring a wide range of stellar parameters in order to establish how they affect magnetic field generation, and thus how these magnetic fields are likely to affect the evolution of TTauri star systems as they approach the main sequence.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): stars: formation - stars: imaging - stars: individual: CR Cha - stars: individual: CV Cha - stars: magnetic fields - open clusters and associations: individual: Chamaeleon I
Simbad objects: 12
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