Understanding star formation in molecular clouds: III. Probability distribution functions of molecular lines in Cygnus X
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: | , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
19 February 2016
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| 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 
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| 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 |
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| 245 | 1 | 0 | |a Understanding star formation in molecular clouds |b III. Probability distribution functions of molecular lines in Cygnus X |c 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 |
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| 520 | |a 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. | ||
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