Observations and Study of Transit Events in the Exoplanet System WASP-10

• Main Authors: Chien, Ping, 簡屏
• Other Authors: Jiang, Ing-Guey
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/93732438859215351690

碩士 === 國立清華大學 === 天文研究所 === 101 === We observed one new transit of WAP-10b using a 46 cm telescope located at WISE Observatory in Israel, in order to search for transit timing variations (TTVs) which can be induced by the existing of the additional planets in the system. Employing 34 available light curves within about 3 yr, the transit timings and O-C diagram are obtained. We found a TTVs signal which has a period about 11d and an amplitude near 1 min with $\chi_{red}^{2}$ = 1.69 fitted to the O-C diagram. Comparing with no TTVs case, the WASP-10b rotates periodically with a linear ephemeris which corresponds to a $\chi_{red}^{2}$ value of 2.05. We also consider the TTV signal reported by Maciejewski et al.(2011a) which is inconsistent with our new-fitted data, $\chi_{red}^{2}$ = 10.07.