利用pycheops分析CHEOPS早期科学观测数据
地球与行星天体物理
2022-05-20 v2 天体物理仪器与方法
太阳与恒星天体物理
摘要
CHEOPS（系外行星表征卫星）是ESA的S级任务，从近地轨道以高节奏观测亮星。该任务的主要目标是通过超高精密测光表征凌邻近恒星的系外行星。本文报道利用CHEOPS在其早期科学观测计划中对四颗著名系外行星——GJ436b、HD106315b、HD97658b与GJ1132b——所观测凌星的分析。分析使用pycheops完成，这是我们开发的开源软件包，可轻松高效地运用本文详尽描述的最先进（SOTA）技术分析CHEOPS光变曲线数据。我们表明，使用CHEOPS测得的凌星参数精度可与Spitzer空间望远镜和Kepler等大型空间望远镜相媲美。我们利用分析中更新的行星参数，推导了对这四颗系外行星内部结构的新约束。
引用
@article{arxiv.2111.08828,
title = {Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using pycheops},
author = {P. F. L. Maxted and D. Ehrenreich and T. G. Wilson and Y. Alibert and A. Collier Cameron and S. Hoyer and S. G. Sousa and G. Olofsson and A. Bekkelien and A. Deline and L. Delrez and A. Bonfanti and L. Borsato and R. Alonso and G. Anglada Escudé and D. Barrado and S. C. C. Barros and W. Baumjohann and M. Beck and T. Beck and W. Benz and N. Billot and F. Biondi and X. Bonfils and A. Brandeker and C. Broeg and T. Bárczy and J. Cabrera and S. Charnoz and C. Corral Van Damme and Sz. Csizmadia and M. B. Davies and M. Deleuil and O. D. S. Demangeon and B. -O. Demory and A. Erikson and H. G. Florén and A. Fortier and L. Fossati and M. Fridlund and D. Futyan and D. Gandolfi and M. Gillon and M. Guedel and P. Guterman and K. Heng and K. G. Isaak and L. Kiss and J. Laskar and A. Lecavelier des Etangs and M. Lendl and C. Lovis and D. Magrin and V. Nascimbeni and R. Ottensamer and I. Pagano and E. Pallé and G. Peter and G. Piotto and D. Pollacco and F. J. Pozuelos and D. Queloz and R. Ragazzoni and N. Rando and H. Rauer and C. Reimers and I. Ribas and S. Salmon and N. C. Santos and G. Scandariato and A. E. Simon and A. M. S. Smith and M. Steller and M. I. Swayne and Gy. M. Szabó and D. Ségransan and N. Thomas and S. Udry and V. Van Grootel and N. A. Walton},
journal= {arXiv preprint arXiv:2111.08828},
year = {2022}
}
备注
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review