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

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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...

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Hauptverfasser: Schneider, Nicola (VerfasserIn) , Bontemps, S. (VerfasserIn) , Motte, F. (VerfasserIn) , Ossenkopf, V. (VerfasserIn) , Klessen, Ralf S. (VerfasserIn) , Simon, R. (VerfasserIn) , Fechtenbaum, S. (VerfasserIn) , Herpin, F. (VerfasserIn) , Tremblin, P. (VerfasserIn) , Csengeri, T. (VerfasserIn) , Myers, P. C. (VerfasserIn) , Hill, T. (VerfasserIn) , Cunningham, M. (VerfasserIn) , Federrath, C. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 19 February 2016
In: Astronomy and astrophysics
Year: 2016, Jahrgang: 587
ISSN:1432-0746
DOI:10.1051/0004-6361/201527144
Online-Zugang:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/201527144
Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2016/03/aa27144-15/aa27144-15.html
Volltext
Verfasserangaben:N. Schneider, S. Bontemps, F. Motte, V. Ossenkopf, R.S. Klessen, R. Simon, S. Fechtenbaum, F. Herpin, P. Tremblin, T. Csengeri, P.C. Myers, T. Hill, M. Cunningham, and C. Federrath
Beschreibung
Zusammenfassung: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.
Beschreibung:Gesehen am 20.05.2020
Beschreibung:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/201527144

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