Observations of the Active Southern RS CVn Binary V841 Cen in 2007 and 2008 - a Large, Long-lived Spot Wave

Details Observations of the Active Southern RS CVn Binary V841 Cen in 2007 and 2008 - a Large, Long-lived Spot Wave Observations of the Active Southern RS CVn Binary V841 Cen in 2007 and 2008 - a Large, Long-lived Spot Wave

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ibvs.5838....1i&link_type=abstract

Information Bulletin on Variable Stars, 5838, 1.

Other

Photometry, Spots

Scientific paper

We obtained B and V observations of the active single-lined RS CVn binary V841 Cen (HD 127535) in 2007 and 2008. We found in 2007 that the star exhibited a very large spot wave, of order 0.4 mag in V, and in contrast to earlier observations of this star, well documented by others, the spot wave was essentially stable over the 6 months of 2007 observations (April to September). We re-observed this V841 Cen in 2008 April-May and found that the light curve was almost unchanged from 2007. Such a large amplitude and stable light curve appears unprecedented for this star.

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