Time evolution of the water snowline in viscous discs

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 恒星形成与演化研究团组

	Time evolution of the water snowline in viscous discs
	Xiao, Lin1 ; Niu, Ruijuan 2; Zhang, Hongxing 2
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2017-06-01
通讯作者邮箱	xiaolin11@mails.jlu.edu.cn
卷号	467 期号:3 页码:2869-2878
关键词	accretion, accretion discs protoplanetary discs
ISSN号	0035-8711
通讯作者	Xiao, Lin
英文摘要	We model the evolution of the water snowline in a protoplanetary disc from its birth to death. Since the disc forms from the collapse of the molecular cloud core, the core properties influence the snowline evolution. For the case of low angular momentum of the core, the disc is gravitationally stable. There is a unique snowline in the disc. It moves outward during the core collapse and then shrinks after the collapse ending. However, if the initial angular momentum of the cloud core is high, the disc is gravitationally unstable during the core collapse. Materials accumulates in the outer part of the low-viscosity region in the disc and the temperature of the disc in this region sharply increases. The snowline is pushed farther away from the central star in the core collapse stage. There is an inner icy region inside the snowline. After the core collapse ends, the snowline shrinks and the icy region disappear. Since icy materials in the inner icy region always exist during the disc lifetime, we suggest that the inner icy region may be the most favourable formation location of a giant planet. Finally, we discuss the implications of the disc dissipation by photoevaporation for terrestrial planet formation and the occurrence rate of debris discs.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	MOLECULAR CLOUD CORES ; PROTOSTELLAR ACCRETION DISKS ; ANGULAR-MOMENTUM TRANSPORT ; PRIMORDIAL SOLAR NEBULA ; LONG-TERM EVOLUTION ; PROTOPLANETARY DISKS ; PLANET FORMATION ; STAR-FORMATION ; MAGNETIC-FIELDS ; CIRCUMSTELLAR DISKS
收录类别	SCI
语种	英语
WOS记录号	WOS:000398419400029
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/1463]
专题	恒星形成与演化研究团组新疆天文台_射电天文研究室
作者单位	1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Jilin Univ, Inst Theoret Chem, Int Joint Res Lab Nanomicro Architecture Chem, Changchun 130023, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Lin,Niu, Ruijuan,Zhang, Hongxing. Time evolution of the water snowline in viscous discs[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,467(3):2869-2878.
APA	Xiao, Lin,Niu, Ruijuan,&Zhang, Hongxing.(2017).Time evolution of the water snowline in viscous discs.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,467(3),2869-2878.
MLA	Xiao, Lin,et al."Time evolution of the water snowline in viscous discs".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 467.3(2017):2869-2878.