A&A 425, 1125-1131 (2004)
Using color photometry to separate transiting exoplanets from false positivesB. Tingley
Research School of Astronomy and Astrophysics, ANU Cotter Road, Weston, Canberra ACT 2611, Australia
(Received 3 December 2003 / Accepted 2 June 2004)
The radial velocity technique is currently used to classify transiting objects. While capable of identifying grazing binary eclipses, this technique cannot reliably identify blends, a chance overlap of a faint background eclipsing binary with an ordinary foreground star. Blends generally have no observable radial velocity shifts, as the foreground star is brighter by several magnitudes and therefore dominates the spectrum, but their combined light can produce events that closely resemble those produced by transiting exoplanets.
Key words: stars: planetary systems -- occultations -- methods: data analysis
© ESO 2004