Structure function scaling of a 2MASS extinction map of Taurus

被引：47

作者：

Padoan, P ^{[1
]}

Cambrésy, L ^{[1
]}

Langer, W ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 580卷 / 01期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

dust; extinction; ISM : kinematics and dynamics; turbulence;

D O I：

10.1086/345403

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the structure function scaling of a 2MASS extinction map of the Taurus molecular cloud complex. The scaling exponents of the structure functions of the extinction map follow Boldyrev's velocity structure function scaling of supersonic turbulence. This confirms our previous result based on a spectral map of (CO)-C-13 J = 1-0 covering the same region and suggests that supersonic turbulence is important in the fragmentation of this star-forming cloud.

引用

页码：L57 / L60

页数：4

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