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

September 2011 • 2011AJ....142...84F

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

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 1041 days across four observational seasons. We use this sample to examine the recently observed large-amplitude transit timing variations (TTVs) by Pál 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.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2011AJ....142...84F
• PDF https://iopscience.iop.org/article/10.1088/0004-6256/142/3/84/pdf
• PREPRINT http://arxiv.org/abs/1105.5599
• DATA http://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/84
• ELECTR https://iopscience.iop.org/article/10.1088/0004-6256/142/3/84