Lightcurves, Models and Magnetic Activity for a Range of Close Binaries

Details Lightcurves, Models and Magnetic Activity for a Range of Close Binaries Lightcurves, Models and Magnetic Activity for a Range of Close Binaries

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21443005l&link_type=abstract

American Astronomical Society, AAS Meeting #214, #430.05; Bulletin of the American Astronomical Society, Vol. 41, p.701

Astronomy and Astrophysics

Astronomy

Scientific paper

I present a series of multicolor lightcurves for a number of W UMa contact binaries obtained with the Tenagra-II 0.81m telescope operated as part of the Las Cumbres Observatory Global Telescope (LCOGT) Network.
The contact binaries span a range of spectral types from mid-A to early-K and in some cases have not been studied photometrically before. Multicolor lightcurves in V and I have been obtained for all systems which are combined with the published spectroscopic orbits to derive complete system parameters.
For systems with lightcurves at multiple epochs, I discuss the time evolution of the magnetic activity and variations as a function of spectral type.

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