75 citations · 253 across the 11 of their papers we have counts for
9 papers · 1 filter
Driven waves in a two-fluid plasma
W. G. Roberge, Glenn E. Ciolek
We study the physics of wave propagation in a weakly ionised plasma, as it applies to the formation of multifluid, MHD shock waves. We model the plasma as separate charged and neut…
Multifluid, Magnetohydrodynamic Shock Waves with Grain Dynamics II. Dust and the Critical Speed for C Shocks
Glenn E. Ciolek, Wayne G. Roberge, Telemachos Ch. Mouschovias
This is the second in a series of papers on the effects of dust on multifluid, MHD shock waves in weakly ionized molecular gas. We investigate the influence of dust on the critical…
Time-Dependent, Multifluid, Magnetohydrodynamic Shock Waves with Grain Dynamics I. Formulation and Numerical Tests
Glenn E. Ciolek, Wayne G. Roberge
This is the first in a series of papers on the effects of dust on the formation, propagation, and structure of nonlinear MHD waves and MHD shocks in weakly-ionized plasmas. We mode…
Davis-Greenstein alignment of oblate spheroidal grains
W. G. Roberge, A. Lazarian
We present extensive calculations on the efficiency of grain alignment by the Davis-Greenstein mechanism. We model the grains as oblate spheroids with arbitrary axis ratios. Our de…
An adiabatic approximation for grain alignment theory
W. G. Roberge
The alignment of interstellar dust grains is described by the joint distribution function for certain ``internal'' and ``external'' variables, where the former describe the orienta…
Interstellar Polarization in the Taurus Dark Clouds, Wavelength Dependent Position Angles and Cloud Structure Near TMC-1
D. W. Messinger, D. C. B. Whittet, W. G. Roberge
We use polarimetric observations of two stars (HD29647, HD283809) in the general direction of TMC-1 in the Taurus Dark Cloud to investigate grain properties and cloud structure in…