Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Fragmentation of magnetized cloud cores

Hosking, J. G. and Whitworth, Anthony Peter 2004. Fragmentation of magnetized cloud cores. Monthly Notices of the Royal Astronomical Society 347 (3) , pp. 1001-1010. 10.1111/j.1365-2966.2004.07274.x

Full text not available from this repository.


Using a fully three-dimensional, Lagrangian two-fluid magnetohydrodynamics code, we simulate the collapse and fragmentation of a rotating molecular cloud core. The code used is able to describe the dynamics of partially ionized fluids and takes account of ambipolar diffusion and magnetic braking. We model both magnetized and non-magnetized cores. The magnetized cores are chosen to be initially thermally supercritical, but magnetically subcritical. Therefore, before they can collapse, magnetic support must be lost through ambipolar diffusion. Our results imply that magnetic braking is so effective in removing angular momentum that fragmentation is inhibited. These results cast doubt on the suggestion by Boss that the likelihood of core fragmentation is increased by a magnetic field.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: magnetic fields ; MHD ; stars: formation ; stars: general ; stars: magnetic fields
Publisher: Oxford University Press
ISSN: 0035-8711
Last Modified: 04 Jun 2017 04:58

Citation Data

Cited 65 times in Google Scholar. View in Google Scholar

Cited 43 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item