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Understanding star formation in molecular clouds III. Probability distribution functions of molecular lines in Cygnus X

Schneider, N; Bontemps, S.; Motte, F.; Ossenkopf, Volker; Klessen, R.; Simon, R; Fechtenbaum, S; Herpin, F; Tremblin, P; Csengeri, T.; Federrath, Christoph


The probability distribution function of column density (N-PDF) serves as a powerful tool to characterise the various physical processes that influence the structure of molecular clouds. Studies that use extinction maps or H2 column-density maps (N) that are derived from dust show that star-forming clouds can best be characterised by lognormal PDFs for the lower N range and a power-law tail for higher N, which is commonly attributed to turbulence and self-gravity and/or pressure, respectively....[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201527144
Access Rights: Open Access


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