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The color signature of the transit of HD209458: discrepancies between stellar atmospheric models and observations

Tingley, Brandon; Thurl, Christine; Sackett, Penny


Exoplanetary transits produce a double-homed 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.

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361:200500202


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