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

The formation of brown dwarfs in discs: Physics, numerics, and observations

Stamatelos, Dimitrios and Whitworth, Anthony Peter 2010. The formation of brown dwarfs in discs: Physics, numerics, and observations. Proceedings of the International Astronomical Union 6 (S270) , pp. 223-226. 10.1017/S174392131100041X

[img]
Preview
PDF - Published Version
Download (148kB) | Preview

Abstract

A large fraction of brown dwarfs and low-mass stars may form by gravitational fragmentation of relatively massive (a few 0.1 M⊙) and extended (a few hundred AU) discs around Sun-like stars. We present an ensemble of radiative hydrodynamic simulations that examine the conditions for disc fragmentation. We demonstrate that this model can explain the low-mass IMF, the brown dwarf desert, and the binary properties of low-mass stars and brown dwarfs. Observing discs that are undergoing fragmentation is possible but very improbable, as the process of disc fragmentation is short lived (discs fragment within a few thousand years).

Item Type: Article
Date Type: Publication
Status: Published
Schools: Advanced Research Computing @ Cardiff (ARCCA)
Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Stars: formation – Stars: low-mass; brown dwarfs – accretion; accretion disks – Methods: Numerical; Radiative transfer; Hydrodynamics
Additional Information: Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/1743-9213/ (accessed 21/02/2014).
Publisher: Cambridge University Press
ISSN: 1743-9213
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 03:29
URI: http://orca.cf.ac.uk/id/eprint/22057

Citation Data

Cited 1 time in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics