Abstract Details
| Name: Parijat Thakur Affiliation: Guru Ghasidas Central University, Bilaspur (C.G.) Conference ID: ASI2017_1340 Title : Transit Timing Variation Analysis of Extra-solar Planet Qatar-1b with Three New Transits Authors and Co-Authors : Vineet Kumar Mannaday (Guru Ghasidas Central University, Bilaspur (C.G.), India), Ing-Guey Jiang (National Tsing-Hua University, Hsinchu, Taiwan), D.K. Sahu (3Indian Institute of Astrophysics, Bangalore, India), Swadesh Chand (Guru Ghasidas Central University, Bilaspur (C.G.), India) Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : We report the results of the transit timing variation analysis of the extra-solar planet Qatar-1b using thirty eight light curves. Our analysis combines thirty five previously available transit light curves with three new transits observed by us between June 2016 and September 2016 using the 2-m Himalayan Chandra Telescope at the Indian Astronomical Observatory, Hanle, India. From these transit data, the physical and orbital parameters of the Qatar-1 system are determined. In addition to this, the ephemeris for the orbital period and mid-transit time are refined to investigate the possible transit timing variation (TTV). We find that null-TTV model provides the better fit to the observed mid-transit time minus calculated mid-transit time data i.e., (O-C), data. This indicates that there is no evidence of TTVs to confirm the presence of additional planet in the extra-solar planetary system Qatar-1. |