Gravity or turbulence? - II. Evolving column density probability distribution functions in molecular clouds

It has been recently shown that molecular clouds do not exhibit a unique shape for the column density probability distribution function (N-PDF). Instead, clouds without star formation seem to possess a lognormal distribution, while clouds with active star formation develop a power-law tail at high c...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society Jg. 416; H. 2; S. 1436 - 1442
Hauptverfasser:	Ballesteros-Paredes, Javier, Vázquez-Semadeni, Enrique, Gazol, Adriana, Hartmann, Lee W., Heitsch, Fabian, Colín, Pedro
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Oxford, UK Blackwell Publishing Ltd 01.09.2011 Wiley-Blackwell Oxford University Press
Schlagworte:	Astronomy Astrophysics Earth, ocean, space Exact sciences and technology ISM: clouds ISM: general ISM: kinematics and dynamics Numerical analysis Star & galaxy formation stars: formation turbulence stars: formation ISM: clouds ISM: general turbulence ISM: kinematics and dynamics Turbulence Gravitational contraction High density Molecular clouds Digital simulation Column density Log normal distribution Star formation Dynamics Kinematics Probability density function Density fluctuation Power law Gravity
ISSN:	0035-8711, 1365-2966
Online-Zugang:	Volltext
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