Abstract
We present 10 new transit light curves of the transiting hot Jupiter HAT-P-13b, obtained during two observational seasons by three different telescopes. When combined with 12 previously published light curves, we have a sample consisting of 22 transit light curves, spanning 1041days across four observational seasons. We use this sample to examine the recently observed large-amplitude transit timing variations (TTVs) by Pl et al. and give refined system parameters. We find that the transit times are consistent with a linear ephemeris, with the exception of a single transit time, from UT 2009 November 5, for which the measured mid-transit time significantly deviates from our linear ephemeris. The nature of this deviation is not clear, and the rest of the data do not show any significant TTVs.
Original language | English (US) |
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Article number | 84 |
Journal | Astronomical Journal |
Volume | 142 |
Issue number | 3 |
DOIs | |
State | Published - Sep 2011 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Keywords
- planetary systems
- stars: individual (HAT-P-13)