Please use this identifier to cite or link to this item:
|Title:||Hierarchical structure of the interstellar molecular clouds and star formation|
|Authors:||Dudorov, A. E.|
Khaibrakhmanov, S. A.
|Publisher:||De Gruyter Open Ltd|
|Citation:||Dudorov A. E. Hierarchical structure of the interstellar molecular clouds and star formation / A. E. Dudorov, S. A. Khaibrakhmanov // Open Astronomy. — 2017. — Vol. 26. — Iss. 1. — P. 285-292.|
|Abstract:||Properties of the hierarchical structures of interstellar molecular clouds are discussed. Particular attention is paid to the statistical correlations between velocity dispersion and size, and between the magnetic field strength and gas density. We investigate the formation of some hierarchical structures with the help of numerical MHD simulations using the ENLIL code. The simulations show that the interstellar molecular filaments with parallel magnetic field and molecular cores can form via the collapse and fragmentation of cylindrical molecular clouds. The parallelmagnetic field halts the radial collapse of the cylindrical cloud maintaining its nearly constant radius ~0.1 pc. The observed filaments with perpendicularmagnetic field can form as a result of themagnetostatic contraction of oblate molecular clouds under the action of Alfvén and MHD turbulence. The theoretical density profiles are fitted with the Plummer-like function and agree with observed profiles of the filaments in Gould's Belt. The characteristics of molecular cloud cores found in our simulations are in agreement with observations. Open Access. © 2017 A. E. Dudorov and S. A. Khaibrakhmanov, published by De Gruyter Open.|
|metadata.dc.description.sponsorship:||Acknowledgment: The investigation of the protostellar disks evolution (section 5) is supported by Russian science foundation (project 15-12-10017). The authors thank prof. Andrey M. Sobolev for stimulating conversations.|
|RSCF project card:||15-12-10017|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
Files in This Item:
|10.1515-astro-2017-0428.pdf||1,24 MB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.