Evolution and lifetime of transient clumps in the turbulent interstellar medium

Details Evolution and lifetime of transient clumps in the turbulent interstellar medium Evolution and lifetime of transient clumps in the turbulent interstellar medium

2011-04-11

arxiv.org/abs/1104.2073v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

accepted for publication by ApJ

Scientific paper

We study the evolution of dense clumps and provide argument that the existence of the clumps is not limited by the crossing time of the clump. We claim that the lifetimes of the clumps are determined by the turbulent motions on larger scale and predict the correlation of the clump lifetime and its column density. We use numerical simulations and successfully test this relation. In addition, we study the morphological asymmetry and the magnetization of the clumps as a function of their masses.

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