Spitzer 对 Kepler K2 任务发现系外行星的观测
地球与行星天体物理
2016-05-25 v1
摘要
我们利用 {\it Spitzer Space Telescope} 观测了 \Kepler \Ktwo 任务发现的两颗环绕低质量恒星的凌星行星系统。系统 K2-3 (EPIC 201367065) 拥有三颗行星，而 EPIC 202083828 (K2-26) 拥有单颗行星。对这两个系统中全部四个天体的观测确认并精化了行星的轨道与物理参数。借助 \Spitzer 可实现的精化轨道信息及更精确的行星半径，对今后对这些及其他 \Ktwo 目标的观测至关重要。对于 K2-3b，我们发现 \Ktwo 与 \Spitzer\ 历元之间存在凌星时间变分 (Transit Timing Variation) 的边际显著证据。
引用
@article{arxiv.1603.01934,
title = {Spitzer Observations of Exoplanets Discovered with The Kepler K2 Mission},
author = {Charles Beichman and John Livingston and Michael Werner and Varoujan Gorjian and Jessica Krick and Katherine Deck and Heather Knutson and Ian Wong and Erik A. Petigura and Jessie Christiansen and David Ciardi and Thomas P. Greene and Joshua E. Schlieder and Mike Line and Ian Crossfield and Andrew Howard and Evan Sinukoff},
journal= {arXiv preprint arXiv:1603.01934},
year = {2016}
}
备注
accepted for Astrophysical Journal