Transit Timing Analysis of the Exoplanet Qatar-1b

Li-Hsin Su^1*, Ing-Guey Jiang^1,2, 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, email:sd90126@gmail.com

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