TOI-1842b：围绕演化中次巨星经历再膨胀的凌星温 Saturn
地球与行星天体物理
2022-02-02 v1
摘要
旨在探测系外行星大气的空间望远镜即将发射，促使人们重新努力对数千个凌星行星候选体进行排序以优先开展后续表征。我们报告 TOI-1842b 的探测与确认：这是一颗由 TESS 发现、并经 Minerva-Australis、NRES 和 Las Cumbres Observatory Global Telescope 地基观测确认的温 Saturn。该行星半径为 ，质量为 ，轨道周期为 天，密度极低（=0.2520.091 g cm）。TOI-1842b 拥有已知最佳的大气标高（893 km）与宿主星亮度（ mag）组合之一，是大气表征的理想目标。由于宿主星正开始脱离主序演化，TOI-1842b 为检验气态巨行星再膨胀模型提供了绝佳机会。仅 4.3 小时的主凌星时长也使 TOI-1842b 成为易于排期的地基大气表征目标。
引用
@article{arxiv.2112.00198,
title = {TOI-1842b: A Transiting Warm Saturn Undergoing Re-Inflation around an Evolving Subgiant},
author = {Robert A. Wittenmyer and Jake T. Clark and Trifon Trifonov and Brett C. Addison and Duncan J. Wright and Keivan G. Stassun and Jonathan Horner and Nataliea Lowson and John Kielkopf and Stephen R. Kane and Peter Plavchan and Avi Shporer and Hui Zhang and Brendan P. Bowler and Matthew W. Mengel and Jack Okumura and Markus Rabus and Marshall C. Johnson and Daniel Harbeck and Rene Tronsgaard and Lars A. Buchhave and Karen A. Collins and Kevin I. Collins and Tianjun Gan and Eric L. N. Jensen and Steve B. Howell and E. Furlan and Crystal L. Gnilka and Kathryn V. Lester and Rachel A. Matson and Nicholas J. Scott and George R. Ricker and Roland Vanderspek and David W. Latham and S. Seager and Joshua N. Winn and Jon M. Jenkins and Alexander Rudat and Elisa V. Quintana and David R. Rodriguez and Douglas A. Caldwell and Samuel N. Quinn and Zahra Essack and Luke G. Bouma},
journal= {arXiv preprint arXiv:2112.00198},
year = {2022}
}
备注
Accepted for publication in AJ