由新视野号观测的冥王星大气
地球与行星天体物理
2021-09-06 v1
摘要
新视野号（New Horizons）飞掠期间进行的观测提供了冥王星大气当前状态的详细快照。虽然低层大气（高度<200 km）与地基恒星掩星观测一致，但高层大气比遭遇前模型所指示的要冷得多且更紧凑。分子氮（N）主导大气（高度<1800 km左右），而甲烷（CH）、乙炔（CH）、乙烯（CH）和乙烷（CH）是丰富的小组分，并可能催生包裹冥王星的广泛雾霾。寒冷的高层大气阻断了预期的增强金斯型、类流体动力学的冥王星大气向太空的逃逸。目前尚不清楚冥王星大气的当前状态是否代表其平均状态——在季节或地质时间尺度上。
引用
@article{arxiv.1604.05356,
title = {The Atmosphere of Pluto as Observed by New Horizons},
author = {G. Randall Gladstone and S. Alan Stern and Kimberly Ennico and Catherine B. Olkin and Harold A. Weaver and Leslie A. Young and Michael E. Summers and Darrell F. Strobel and David P. Hinson and Joshua A. Kammer and Alex H. Parker and Andrew J. Steffl and Ivan R. Linscott and Joel Wm. Parker and Andrew F. Cheng and David C. Slater and Maarten H. Versteeg and Thomas K. Greathouse and Kurt D. Retherford and Henry Throop and Nathaniel J. Cunningham and William W. Woods and Kelsi N. Singer and Constantine C. C. Tsang and Rebecca Schindhelm and Carey M. Lisse and Michael L. Wong and Yuk L. Yung and Xun Zhu and Werner Curdt and Panayotis Lavvas and Eliot F. Young and G. Leonard Tyler and the New Horizons Science Team},
journal= {arXiv preprint arXiv:1604.05356},
year = {2021}
}
备注
in Science 351, aad8866 (2016)