162 citations · 1.7k across the 35 of their papers we have counts for
14 papers · 1 filter
The direction of outflows from filaments : constraints on core formation
S. V. Anathpindika, A. P. Whitworth
Context: It is generally presumed that the outflows from a YSO are directed close to its rotation axis (i.e. along its angular momentum vector and orthogonal to any attendant accre…
Adaptive smoothing lengths in SPH
R. E. Attwood, S. P. Goodwin, A. P. Whitworth
Context: There is a need to improve the fidelity of SPH simulations of self-gravitating gas dynamics. Aims: We remind users of SPH that, if smoothing lengths are adjusted so as to…
Ionisation-induced star formation I: The collect and collapse model
J. E. Dale, I. A. Bonnell, A. P. Whitworth
We conduct Smoothed Particle Hydrodynamics simulations of the `collect and collapse' scenario (Elmegreen and Lada, 1977) for star formation triggered by an expanding HII region. We…
The minimum mass for star formation, and the origin of binary brown dwarfs
A. P. Whitworth, D. Stamatellos
Our first aim is to calculate the minimum mass for Primary Fragmentation in a variety of potential star-formation scenarios, i.e. (i) hierarchical fragmentation of a 3-D medium; (i…
The formation of brown dwarfs
A. P. Whitworth, S. P. Goodwin
We review four mechanisms for forming brown dwarfs: (i) turbulent fragmentation (producing very low-mass prestellar cores); (ii) gravitational instabilities in discs; (iii) dynamic…
Observational characteristics of dense cores with deeply embedded young protostars
D. Stamatellos, A. P. Whitworth, S. P. Goodwin
Class 0 objects, which are thought to be the youngest protostars, are identified in terms of NIR or radio emission and/or the presence of molecular outflows. We present combined hy…