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Target RA (J2000): 165.365326 and deg Target Dec (J2000): 5.13948 and deg Gaia GMag: 11.811 Programme ID: CH_PR240008 PI of observing programme: Nabbie Title of programme: Confirming the Transit Timing Variations of a Neptune-Sized Inner Companion to a Hot Jupiter Abstract: The presence of inner companions to Hot Jupiters reveals a rarely-treaded path of Hot Jupiter formation one lacking its customary violence. Though intrinsically rare such systems provide valuable opportunities to directly constrain migrational pathways and understand the multi-faceted origins of Hot Jupiters. TOI-5143 presents one such opportunity hosting a confirmed Hot Jupiter TOI-5143.01 and a statistically-validated inner Neptune TOI-5143.02. TOI-5143.01 is one of the shortest-period Hot Jupiters to host an interior companion second only to WASP-47. Preliminary ground-based photometric observations suggest that TOI-5143.02 exhibits tentative transit timing variations (TTVs). This program will use CHEOPS to confirm the TTV signals of TOI-5143.02. The TTV observations will be used with existing radial velocity data of the system to precisely constrain the mass and dynamical history of the system. [truncated! Please see actual data for full text]

目标赤经（J2000坐标系）：165.365326 度
目标赤纬（J2000坐标系）：5.13948 度
盖亚G星等（Gaia GMag）：11.811
观测项目编号（Programme ID）：CH_PR240008
观测项目首席研究员（Principal Investigator，PI）：Nabbie
项目标题：验证热木星（Hot Jupiter）内侧海王星级伴星的凌星时间变化（Transit Timing Variations，TTVs）
摘要：热木星（Hot Jupiter）存在内侧伴星，这揭示了一条鲜有涉足的热木星形成路径——该路径摒弃了热木星常规形成过程的剧烈性。尽管此类系统本就较为稀缺，但它们为直接约束行星迁移路径、解析热木星多维度起源提供了宝贵契机。TOI-5143正是这样一个目标系统：它拥有已确认的热木星TOI-5143.01，以及经统计验证的内侧海王星级天体TOI-5143.02。TOI-5143.01是已知拥有内侧伴星的短周期热木星中周期第二短的天体，仅次于WASP-47。前期地面测光观测显示，TOI-5143.02存在疑似凌星时间变化（Transit Timing Variations，TTVs）信号。本项目将利用CHEOPS确认TOI-5143.02的TTV信号。后续将结合该系统已有的视向速度（Radial Velocity）数据，通过TTV观测精确约束该系统的质量与动力学演化历史。
[内容已截断！完整文本请查阅原始数据]