Structure Function Scaling of a 2MASS Extinction Map of Taurus | Zendy

Paolo Padoan | Zendy; L. Cambrésy | Zendy; W. D. Langer | Zendy

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Structure Function Scaling of a 2MASS Extinction Map of Taurus

Author(s) -

Paolo Padoan,

L. Cambrésy,

W. D. Langer

Publication year - 2002

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/345403

Subject(s) - scaling , supersonic speed , physics , extinction (optical mineralogy) , molecular cloud , turbulence , structure function , astrophysics , geometry , mathematics , optics , stars , mechanics , particle physics

We compute the structure function scaling of a 2MASS extinction map of theTaurus molecular cloud complex. The scaling exponents of the structurefunctions of the extinction map follow the Boldyrev's velocity structurefunction scaling of supersonic turbulence. This confirms our previous resultbased on a spectral map of 13CO J=1-0 covering the same region and suggeststhat supersonic turbulence is important in the fragmentation of thisstar--forming cloud.Comment: submitted to Ap

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