利用专业和公民科学数据增强系外行星星历表：以WASP-77A b为例
地球与行星天体物理
2024-06-05 v2 天体物理仪器与方法
摘要
我们展示了系外行星WASP-77 A b的更新星历表和物理参数。在这项工作中，我们结合了64次地面和空间凌星观测、6次空间掩星观测和32次径向速度观测，为该目标产生了迄今为止最精确的轨道解，有助于规划詹姆斯·韦伯空间望远镜（JWST）和Ariel观测以及大气研究。我们报告了新的轨道周期1.360029395 ± 5.7e-8天，新的凌星中心时刻2459957.337860 ± 4.3e-5 BJDTDB（质心动力学时标下的质心儒略日；arXiv:1005.4415）和新的掩星中心时刻2459956.658192 ± 6.7e-5 BJDTDB。此外，本研究中提出的方法将行星质量的不确定性降低到1.6654 ± 4.5e-3 Mjup，轨道周期的不确定性降低到1.360029395 ± 5.7e-8天，分别降低了15.1倍和10.9倍。通过比较空间和公民科学主导的凌星数据的联合拟合分析，我们的研究证明了包含公民科学家收集的数据相比于仅使用空间数据拟合的优势。此外，通过包含来自ExoClock、系外行星凌星数据库（ETD）和Exoplanet Watch的大量公民科学数据，我们可以增加观测基线，从而比仅使用TESS数据更好地约束星历表的前向传播。
引用
@article{arxiv.2405.19615,
title = {Enhancing Exoplanet Ephemerides by Leveraging Professional and Citizen Science Data: A Test Case with WASP-77A b},
author = {Federico R. Noguer and Suber Corley and Kyle A. Pearson and Robert T. Zellem and Molly N. Simon and Jennifer A. Burt and Isabela Huckabee and Prune C. August and Megan Weiner Mansfield and Paul A. Dalba and Peter C. B. Smith and Timothy Banks and Ira Bell and Dominique Daniel and Lindsay Dawson and Jesús De Mula and Marc Deldem and Dimitrios Deligeorgopoulos and Romina P. Di Sisto and Roger Dymock and Phil Evans and Giulio Follero and Martin J. F. Fowler and Eduardo Fernández-Lajús and Alex Hamrick and Nicoletta Iannascoli and Andre O. Kovacs and Denis Henrique Kulh and Claudio Lopresti and Antonio Marino and Bryan E. Martin and Paolo Arcangelo Matassa and Tasso Augusto Napoleão and Alessandro Nastasi and Anthony Norris and Alessandro Odasso and Nikolaos I. Paschalis and Pavel Pintr and Jake Postiglione and Justus Randolph and François Regembal and Lionel Rousselot and Sergio José Gonçalves da Silva and Andrew Smith and Andrea Tomacelli},
journal= {arXiv preprint arXiv:2405.19615},
year = {2024}
}
备注
Updated a co-author name. Added a co-author. Added an acknowledgement