HAT-P-13行星系统中的凌星时间变化
地球与行星天体物理
2015-05-27 v2
摘要
在本快报中,我们展示了近期HAT-P-13b凌星的观测结果。对已发表和新获得的凌星历元的综合分析表明,自上次公开的星历表以来,存在显著的凌星时间变化。凌星时间的变化导致凌星时间突然切换。检测到的凌星时间变化全范围约为0.015天,这显著大于已知的热木星凌星时间变化事件。如果我们检测到的是一个周期性过程,其周期应至少为约3年,因为之前的观测中没有变化的迹象。这一论点使得测得的凌星时间变化不太可能是由HAT-P-13c的摄动引起的。
引用
@article{arxiv.1102.0525,
title = {Transit timing variations in the HAT-P-13 planetary system},
author = {András Pál and Krisztián Sárneczky and Gyula M. Szabó and Attila Szing and László L. Kiss and György Mezö and Zsolt Regály},
journal= {arXiv preprint arXiv:1102.0525},
year = {2015}
}
备注
5 pages, 2 figures, accepted for publication in MNRAS Letters (this version contains an additional measurement that has been acquired since the submission and acceptance of the paper, slightly polished since version 1). Measurements confirming our results are welcomed