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	Outflows and inflows in astrophysical systems
	Shen, Y ; Lou, YQ
	2010-05-06 ; 2010-05-06
会议名称	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS ; 5th Micorquasar Workshop ; Beijing, PEOPLES R CHINA ; Web of Science
关键词	hydrodynamics ISM : clouds shock waves stars : formation winds, outflows SELF-SIMILAR COLLAPSE SIMILARITY SOLUTIONS ISOTHERMAL SPHERES STAR-FORMATION GAS CLOUDS CONDENSATION DYNAMICS FLOWS DISK Astronomy & Astrophysics
中文摘要	We seek for self-similar solutions describing the time-dependent evolution of self-gravity systems with either spherical symmetry or axisymmetric disk geometry. By assuming self-similar variable x &3bond; r/at where a is isothermal sound speed we find self-similar solutions extending from the initial instant t = 0 to the final stage t -> infinity using standard semi-analytical methods. Different types of solutions are constructed, which describe overall expansion or collapse, envelope expansion with core collapse (EECC), the formation of central rotationally supported quasi-equilibrium disk as well as shocks. Though infinitely many, these self-similarity solutions have similar asymptotic behaviors which may impose diagnosis on the velocity and density structures in astrophysical systems.; Tsinghua Univ
会议录出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/6944]
专题	清华大学
推荐引用方式 GB/T 7714	Shen, Y,Lou, YQ. Outflows and inflows in astrophysical systems[C]. 见:CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 5th Micorquasar Workshop, Beijing, PEOPLES R CHINA, Web of Science.

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