A Stellar Flare during the Transit of the Extrasolar Planet OGLE-TR-10b

Abstract

We report a stellar flare occurring during a transit of the exoplanet OGLE-TR-10b, an event not previously reported in the literature. This reduces the observed transit depth, particularly in the u'-band, but flaring could also be significant in other bands and could lead to incorrect planetary parameters. We suggest that OGLE-TR-10a is an active planet-hosting star and has an unusually high X-ray luminosity.

3 pages, 1 figure

References in corpus (2)

• The Age-Activity-Rotation Relationship in Solar-Type Stars
• A cool starspot or a second transiting planet in the TrES-1 system?

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