Paper: astro-ph/0510633
Date: Fri, 21 Oct 2005 01:42:05 GMT (37kb)

Title: The color signature of the transit of HD 209458: Discrepancies between
stellar atmospheric models and observations

Authors: B. Tingley, C. Thurl & P. D. Sackett

Comments: 4 pages, 3 figures, accepted to A&A
\\
Exoplanetary transits produce a double-horned color signature that is
distinct from both binaries and blends and can thus be used to separate
exoplanets from false positives in transit searches. Color photometry with
precision sufficient to detect this signal in transits of HD 209458 is
available in the literature. Analysis of these observations reveals that, while
the signature does exhibit the expected shape, it is significantly stronger
than PHOENIX atmospheric models predict.

\\ ( http://arXiv.org/abs/astro-ph/0510633 , 37kb)