Transit timing variations and linear ephemerides of confirmed Kepler transiting exoplanets

论文摘要

We determine new linear ephemerides of transiting exoplanets using long-cadence de-trended data from quarters Q1 to Q17 of the Kepler mission. We analysed transit-timing variation（TTV） diagrams of 2098 extrasolar planets. The TTVs of 121 objects were excluded（because of insufficient datapoints, influence of stellar activity, etc.）. Finally, new linear ephemerides of 1977 exoplanets from the Kepler archive are presented. A significant linear trend was observed on TTV diagrams of approximately 35% of the exoplanets studied. Knowing the correct linear ephemeris is key for successful follow-up observations of transits. Residual TTV diagrams of 64 analysed exoplanets show periodic variation, and 43 of these TTV planets were not previously reported.

论文目录

文章来源

类型: 期刊论文

作者: Pavol Gajdo?,Martin Vaňko,?tefan Parimucha

来源: Research in Astronomy and Astrophysics 2019年03期

年度: 2019

分类: 基础科学

专业: 天文学

单位: Astronomical Institute, Slovak Academy of Sciences

基金: supported by the Slovak Research and Development Agency under contract No. APVV-15-0458,the project VEGA 2,0031,18,supported by the VVGS-PF-2017-724 internal grant of the Faculty of Science,P. J.?afárik University in Ko?ice

分类号: P15

页码: 81-86

总页数: 6

文件大小: 165K

下载量: 8

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