| Issue |
A&A
Volume 505, Number 2, October II 2009
|
|
|---|---|---|
| Page(s) | 901 - 902 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361/200912257 | |
| Published online | 18 August 2009 | |
Research Note
A stellar flare during the transit of the extrasolar planet OGLE-TR-10b *
1
Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK e-mail: sjb@astro.keele.ac.uk
2
Department of Physics and Astronomy, University of Sheffield, S3 7RH, UK
3
Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Received:
2
April
2009
Accepted:
9
August
2009
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.
Key words: stars: individual: OGLE-TR-10 / stars: planetary systems / stars: flare / stars: activity
© ESO, 2009
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