论文标题
维持20个Corot行星的世纪：过境最低时间和潜在的过境时机变化
Maintaining the Ephemeris of 20 CoRoT Planets: Transit Minimum Times and Potential Transit Timing Variations
论文作者
论文摘要
我们提出了33个由Corot任务发现的20个过境行星的最低时间，自2012年任务结束以来，这是从地面观测中获得的，目的是维持这些行星的埃弗米斯。观测到的十二个行星位于银河中心附近的corot田，其余八个行星位于抗内膜附近的田野中。我们检测到Corot 3b，11b，13b，27b的情况下明显的过境时机变化的指示。对于另外两个行星（Corot 18b和20b），我们得出的结论是，在较早的后续观察中，定时偏移导致在发现出版物中的埃菲默里斯，这与后来时期的后续观察的时机不一致。就Corot-20b而言，这可能是由于进一步的非运输行星的影响。我们还注意到，我们所报告的最低时间中有很大一部分（33个）的O-C值为负值，尽管其中大多数都属于埃弗米尔人的预期不确定性。
We present 33 transit minimum times of 20 transiting planets discovered by the CoRoT mission, which have been obtained from ground-based observations since the mission's end in 2012, with the objective to maintain the ephemeris of these planets. Twelve of the observed planets are in the CoRoT fields near the galactic center and the remaining eight planets are in the fields near the anticenter. We detect indications for significant transit timing variations in the cases of CoRoT 3b, 11b, 13b, 27b. For two more planets (CoRoT 18b and 20b) we conclude that timing offsets in early follow-up observations led to ephemeris in discovery publications that are inconsistent with timings from follow-up observations in later epochs. In the case of CoRoT-20b, this might be due to the influence from a further non-transiting planet. We also note that a significant majority (23 of 33) of our reported minimum times have negative O-C values, albeit most of them are within the expected uncertainty of the ephemeris.
