Supernovae and molecular clouds in spiral galaxies

	Supernovae and molecular clouds in spiral galaxies
	Song, GX; Schilizzi, RT; Vogel, SN; Paresce, F; Elvis, MS
刊名	GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS
	2001
期号	205 页码:392-393
英文摘要	We report N-body simulations of the birthrate and distribution of supernovae in spiral galaxies. The simulations assume that stars form in GMCs with mass greater than 10(5) Mcircle dot and that a Miller-Scalo IMF results. We assume that the resulting supernovae disrupt the GMC into smaller clouds; these clouds aggregrate to form new GMCs via inelastic collisions. Imposing a spiral potential, we find that supernovae form throughout the disk, but concentrated in the spiral arms. Using conditions appropriate for the Galaxy, a set of simulations with different initial random distributions of molecular clouds predicts 755tau(5) supernova remnants (SNR) should exist in the Galaxy (where tau(5) is the ratio of the lifetimes of SNRs to 10(5) yr). The predicted number of remnants and their spatial distribution can be compared to observations.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000175998000128
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/28300]
专题	上海天文台_星系宇宙学重点实验室
作者单位	Chinese Acad Sci, Natl Astron Observ, Shanghai Astron Observ, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Song, GX,Schilizzi, RT,Vogel, SN,et al. Supernovae and molecular clouds in spiral galaxies[J]. GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS,2001(205):392-393.
APA	Song, GX,Schilizzi, RT,Vogel, SN,Paresce, F,&Elvis, MS.(2001).Supernovae and molecular clouds in spiral galaxies.GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS(205),392-393.
MLA	Song, GX,et al."Supernovae and molecular clouds in spiral galaxies".GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS .205(2001):392-393.