Data for: JWST COMPASS: A NIRSpec G395H Transmission Spectrum of Radius Valley-Dweller TOI-260 b

Data and models accompanying the publication Meech et al. 2026: "JWST COMPASS: A NIRSpec G395H Transmission Spectrum of Radius Valley-Dweller TOI-260 b", accepted to The Astronomical Journal (arXiv:2602.22329). Here we include: Fitted white and spectroscopic light curves from the two independent reductions (Tiberius and Eureka!) and two visits; Transmission spectra from both reductions; PLATON atmospheric forward models presented in Figure 10 (clear, isothermal atmospheres).本数据集配套于Meech等人2026年的论文《詹姆斯·韦伯太空望远镜（James Webb Space Telescope，JWST）COMPASS：针对半径谷（Radius Valley）居民系外行星TOI-260 b的近红外光谱仪（Near-Infrared Spectrograph，NIRSpec）G395H透射光谱》，该论文已被《天文学期刊》（The Astronomical Journal）录用，预印本编号为arXiv:2602.22329。 本次公开的数据集包含以下内容： 1. 两次独立还原流程（Tiberius与Eureka!）以及两次观测任务所得到的拟合白光光变曲线与分光光变曲线； 2. 两种还原流程各自得到的透射光谱； 3. 图10中展示的PLATON大气正演模型（对应晴空、等温大气场景）。