Non-thermal states in models of filaments: a dynamical study
Astrophysics of Galaxies
2017-12-25 v1
Abstract
We study the origin of the non-thermal profiles observed in filamentary structures in galactic molecular clouds by means of numerical dynamical simulations. We find that such profiles are intrinsic features of the end products of dissipationless collapse in cylindrical symmetry. Moreover, for sufficiently cold initial conditions, we obtain end states characterized by markedly anticorrelated radial density and temperature profiles. Gravitational, dissipationless dynamics alone is thus sufficient to reproduce, at least qualitatively, many of the properties of the observed non-thermal structures.
Keywords
Cite
@article{arxiv.1712.08224,
title = {Non-thermal states in models of filaments: a dynamical study},
author = {Pierfrancesco Di Cintio and Shamik Gupta and Lapo Casetti},
journal= {arXiv preprint arXiv:1712.08224},
year = {2017}
}
Comments
To appear in the proceedings of the international conference "Francesco's legacy - Star Formation in Space and Time" Firenze, Italy June 5-9 2017