Evolution and propagation of density waves on galactic disk .1. General evolution equation of wavelet and discussion of its solution

IMECH-IR > 力学所知识产出(1956-2008)

	Evolution and propagation of density waves on galactic disk .1. General evolution equation of wavelet and discussion of its solution
	Xu JJ(徐建军); XU, JJ (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA.
发表期刊	Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences
	1985
卷号	28 期号:11 页码:1192-1207
ISSN	0253-5831
摘要	This paper presents a general self-consistent theory of evolution and propagation of wavelets on the galactic disk. A simplified model for this theory, i. e. the thin transition-layer approximation is proposed.There are three types of solutions to the basic equation governing the evolution of wavelets on the disk: (ⅰ) normal propagating type; (ⅱ) swing type; (ⅲ) general evolving type. The results show that the first two types are applicable to a certain domain on the galactic disk and a certain region of the wave number of wavelets. The third is needed to join the other two types and to yield a coherent total picture of the wave motion. From the present theory, it can be seen that the well-known "swing theory" of the G-L sheet model holds only for a certain class of basic states of galaxies.
收录类别	SCI
语种	英语
WOS记录号	WOS:A1985A135500008
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/39790
专题	力学所知识产出(1956-2008)
通讯作者	XU, JJ (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	Xu JJ,XU, JJ . Evolution and propagation of density waves on galactic disk .1. General evolution equation of wavelet and discussion of its solution[J]. Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,1985,28,11,:1192-1207.
APA	徐建军,&XU, JJ .(1985).Evolution and propagation of density waves on galactic disk .1. General evolution equation of wavelet and discussion of its solution.Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,28(11),1192-1207.
MLA	徐建军,et al."Evolution and propagation of density waves on galactic disk .1. General evolution equation of wavelet and discussion of its solution".Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences 28.11(1985):1192-1207.

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