Transit Timing Analysis of the Exoplanet Qatar-1b
Li-Hsin Su1*, Ing-Guey Jiang1,2, Devesh P. Sariya2, He-Feng Hsieh2, V. V. Moskvin3, A. A. Shlyapnikov3, Vineet Kumar4, Parijat Thakur4, David Mkrtichian5, Evgeny Griv6
1Department of Physics, National Tsing-Hua University, Hsin-Chu, Taiwan
2Institute of Astronomy, National Tsing-Hua University, Hsin-Chu, Taiwan
3Crimean Astrophysical Observatory, Nauchny, Ukraine
4Department of Pure & Applied Physics, Guru Ghasidas Central University, Bilaspur, India
5National Astronomical Research Institute of Thailand, Chiangmai, Thailand
6Department of Physics, Ben-Gurion University, Beer-Sheva, Israel
* Presenter:Li-Hsin Su,
Covion et al. (2013) and Maciejewski et al. (2015) have obtained 28 light curves of Qatar-1b and studied its transit timing variations (TTVs). Because there is no definite conclusion among these previous results, we employ meter-class telescopes to do further observations and obtain ten new light curves. We investigate possible TTVs from all these forty light curves and use several models to explain possible TTVs.

Keywords: planetary system, exoplanet, transit timing variation