High-precision follow-up of transit-timing variation of WASP-10b

高精度跟踪 WASP-10b 的传输时间变化

• 批准号: 189425734
• 负责人: Professor Dr. Ralph Neuhäuser
• 金额: --
• 依托单位: Astrophysikalisches Institut und Universitätssternwarte
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/189425734?language=en
• 关键词: precision; follow; up; transit; timing

Photometric follow-ups of a transiting exoplanet may lead to discovery of another lowmassbody in a System. This is possible by detecting and then analysing variations intransit timing of the transiting exoplanet. We observed transit timing of exoplanet WASPlObwhich cannot be explained by a constant period but by a periodic Variation. Modelsassuming the existence of a perturbing planet in the System and reproducing the observedvariations of timing residuals are considered. As different planet configurations generatesimilar TTV Signals with the identical dominant periodicity, we intend to collect highprecisionobservations in critical phases of observed timing Variation to partially remove thedegeneracy and to point out the most probable planet configuration of WASP-10 System.

对凌日系外行星的光度跟踪可能会导致系统中另一个低质量天体的发现。这是通过检测并分析凌日系外行星凌日时间的变化来实现的。我们观察到系外行星 WASP10b 的凌日时间，它不能用恒定周期来解释，而是用周期性变化来解释。考虑了假设系统中存在扰动行星并再现观察到的时间残差变化的模型。由于不同的行星配置会产生具有相同主周期的相似TTV信号，我们打算在观测到的时间变化的关键阶段收集高精度观测数据，以部分消除简并性并指出WASP-10系统最可能的行星配置。