Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b

Benjamin J. Fulton; Avi Shporer; Joshua N. Winn; Matthew J. Holman; András Pál; J. Zachary Gazak

doi:10.1088/0004-6256/142/3/84

Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b

Earth and Planetary Astrophysics 2015-05-28 v3

Authors: Benjamin J. Fulton , Avi Shporer , Joshua N. Winn , Matthew J. Holman , András Pál , J. Zachary Gazak

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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 1,041 days across four observational seasons. We use this sample to examine the recently observed large-amplitude transit timing variations (P\'al et al. 2011), 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 Nov 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 does not show any significant transit timing variation.

Keywords

hot jupiter transit timing variations light curve analysis exoplanet HAT-P-13b ephemeris refinement

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@article{arxiv.1105.5599,
  title  = {Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b},
  author = {Benjamin J. Fulton and Avi Shporer and Joshua N. Winn and Matthew J. Holman and András Pál and J. Zachary Gazak},
  journal= {arXiv preprint arXiv:1105.5599},
  year   = {2015}
}

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accepted to AJ on 2011-07-14

Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b

Abstract

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