Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921601m&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #216.01; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
Reduced photoelectric photometry on V471 Tau was recovered from the 1976-1979 observing seasons. The data were used to create light curves of the eclipsing red dwarf + white dwarf binary. A binary star program was used to model dark spots and calculate times of minima via differential corrections of parameters. Dark spots on the active red dwarf were required for all light curves modeled while subsequent data in the same observing season hint at spot evolution. The O-C values from times of minima follow the trend expected due to the light-travel time of a third body. The errors in the timings may be due to the paucity of data during eclipses and ellipsoidal and spot distortions of the red dwarf outside eclipses.
Miranda Valmin J.
Vaccaro Todd
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