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2008IBVS.5836....1R - IAU Inform. Bull. Var. Stars, 5836, 1 (2008/June-0)
UX Ari: new photometry and longitudinal asymmetry in spot activity fixed in orbital reference frame.
ROSARIO M.J., MEKKADEN M.V. and RAVEENDRAN A.V.
Abstract (from CDS):
We present new BV photometry of UX Ari obtained on 23 nights during January-March 2008. From an analysis of the long-term V band photometry available for this star we find strong evidence for the orbital modulation of spot activity in the cool component of UX Ari: the hemisphere facing the companion shows a higher level of spot activity, as indicated by a significantly larger spread in observed brightness, when compared to that away from it.
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