YNAO OpenIR  > 大样本恒星演化研究组
The effects of the variations of turbulence parameters on the observable turbulence statistics
Ding SY(丁诗源)1,2; Ding, SY
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2016-06-01
卷号458期号:4页码:3489-3505
DOI10.1093/mnras/stw485
产权排序第1完成单位
收录类别SCI
关键词Turbulence Ism: Clouds Ism: Kinematics And Dynamics Ism: Lines And bAnds Ism: Structur.
摘要In order to study how the statistical properties of the observational quantities of the turbulent molecular cloud models vary with different turbulence parameters, I use the artificially generated random numerical models based on Gaussian fields created by the code PYFC with different values of the 1D density Fourier spectral index beta(n), the turbulence driving parameter, i.e. the b parameter and the 1D Fourier velocity power spectral index beta(upsilon). Then I calculate the line profiles of (CO)-C-13 emission on every sight line. I derive the statistical properties of column density N, line intensity W, peak intensity T-peak and velocity dispersion V-rms on every sight line. I discover that as beta(n) increases, (1) the standard deviations sigma(ln(N/< N >)) and sigma(ln(W/< W >)), of the logarithmic column density ln (N /< N >) and the logarithmic integrated intensity ln (W/< W >) increase; (2) the number of the low T-peak values becomes larger; (3) the probability distribution function (PDF) of v(rms) inclines to left a little. As the b parameter increases, (1) the values of both sigma(ln(N/< N >)) and sigma(ln(W/< W >)) increase; (2) the numbers of both the low T-peak values and the saturated T-peak values become larger; (3) the PDF of v(rms) inclines to left obviously. As beta(upsilon) increases, (1) the PDF of ln (W/< W >) remains generally unchanged; (2) the PDF of T-peak remains generally unchanged; (3) the PDF of V-rms inclines to left obviously. I also discuss the relationship among sigma(N/< N)> Mach number, the b parameter and beta(n).
项目资助者NSFC(11173056)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2016-05-12
WOS记录号WOS:000375799500009
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]GALACTIC MOLECULAR CLOUDS ; SUPERSONIC ISOTHERMAL TURBULENCE ; MACH NUMBER RELATION ; STAR-FORMATION RATE ; DENSITY PROBABILITY-DISTRIBUTION ; INITIAL MASS FUNCTION ; MODELING CO EMISSION ; INTERSTELLAR TURBULENCE ; MAGNETOHYDRODYNAMIC TURBULENCE ; NUMERICAL SIMULATIONS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9597
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
通讯作者Ding, SY
作者单位1.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan observatories, Chinese Academy of Sciences, PO Box 110, Kunming, 650011 Yunnan Province, People's Republic of China
2.University of the Chinese Academy of Sciences, Yuquan Road 19, Shijingshan Block, 100049 Beijing, People's Republic of China
推荐引用方式
GB/T 7714
Ding SY,Ding, SY. The effects of the variations of turbulence parameters on the observable turbulence statistics[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,458(4):3489-3505.
APA Ding SY,&Ding, SY.(2016).The effects of the variations of turbulence parameters on the observable turbulence statistics.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,458(4),3489-3505.
MLA Ding SY,et al."The effects of the variations of turbulence parameters on the observable turbulence statistics".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 458.4(2016):3489-3505.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
The effects of the v(3812KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Ding SY(丁诗源)]的文章
[Ding, SY]的文章
百度学术
百度学术中相似的文章
[Ding SY(丁诗源)]的文章
[Ding, SY]的文章
必应学术
必应学术中相似的文章
[Ding SY(丁诗源)]的文章
[Ding, SY]的文章
相关权益政策
暂无数据
收藏/分享
文件名: The effects of the variations of turbulence parameters on the observable turbulence statistics.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。