New inner boundaries of the habitable zones around M dwarfs

被引：25
作者：
Bin, Jiayu [1 ,2 ]
Tian, Feng [1 ,2 ]
Liu, Lei [1 ,2 ]
机构：
[1] Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing 100084, Peoples R China
[2] Joint Ctr Global Change Studies, Beijing 100875, Peoples R China
来源：
EARTH AND PLANETARY SCIENCE LETTERS | 2018年 / 492卷
基金：
中国国家自然科学基金;
关键词：
exoplanets; habitable zones; M dwarfs; COMMUNITY ATMOSPHERE MODEL; STOCHASTIC MIXING MODEL; CLIMATE SIMULATIONS; MOMENTUM TRANSPORT; EARTH; PARAMETERIZATION; CIRCULATION; CONVECTION; RUNAWAY; EVOLUTION;
D O I：
10.1016/j.epsl.2018.04.003
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Two general circulation models CAM4 and CAM5 are used to study the climate of ocean planets around M dwarfs with different effective temperatures. The atmospheres in CAM5 simulations are warmer and contain more water vapor than those in CAM4 under identical model settings, a result likely caused by improved treatments of radiation and possibly clouds in CAM5. The inner boundary of the habitable zones of M dwarfs based on CAM5 simulations, expressed as a second order polynomial function, are farther away from the stars than what are suggested by previous works and the corresponding atmospheres are in the moist greenhouse state. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 129
页数：9
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