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arXiv · 0908.2329

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

Samuel Bentley·Coel Hellier·Pierre Maxted·Vik Dhillon·Tom Marsh·Chris Copperwheat·Stuart Littlefair
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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.

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Samuel Bentley, Coel Hellier, Pierre Maxted, Vik Dhillon, Tom Marsh, Chris Copperwheat, Stuart Littlefair. 2009-08-17. A Stellar Flare during the Transit of the Extrasolar Planet OGLE-TR-10b. https://doi.org/10.1051/0004-6361/200912257

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