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

Bibcode
2006A&A...445L..27T
DOI
10.1051/0004-6361:200500202
Tingley, B.; Thurl, C.; Sackett, P.
Bibliographical reference

Astronomy and Astrophysics, Volume 445, Issue 3, January III 2006, pp.L27-L30

Advertised on:
1
2006
Journal
Astronomy and Astrophysics
Number of authors
3
IAC number of authors
0
Citations
7
Refereed citations
5
Description
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.
Type
Refereed

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