17 citations · 111 across the 22 of their papers we have counts for
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Investigating thermal evolution of the self-gravitating one dimensional molecular cloud by smoothed particle hydrodynamics
Mohsen Nejad-Asghar, Diego Molteni
The heating of the ion-neutral (or ambipolar) diffusion may affect the thermal phases of the molecular clouds. We present an investigation on the effect of this heating mechanism i…
Smoothed Particle Hydrodynamics in Thermal Phases of a One Dimensional Molecular Cloud
M. Nejad-Asghar, D. Molteni
We present an investigation on effect of the ion-neutral (or ambipolar) diffusion heating rate on thermal phases of a molecular cloud. We use the modeling of ambipolar diffusion wi…
Modeling fragmentation of the self-gravitating molecular layer by smoothed particle hydrodynamics
M. Nejad-Asghar, D. Molteni
We revisit the modeling of ion-neutral (or ambipolar) diffusion with two fluid smoothed particle hydrodynamics, as discussed by Hosking & Whitworth. Some parts of the technique are…
Artificial viscosity in simulation of shock waves by smoothed particle hydrodynamics
M. Nejad-Asghar, A. R. Khesali, J. Soltani
The artificial viscosity is reconsidered in smoothed particle hydrodynamics to prevent inter-particle penetration, unwanted heating, and unphysical solutions. The coefficients in t…
Formation of Fluctuations in the Molecular Slab via Isobaric Thermal Instability
M. Nejad-Asghar
The frictional heating by ion-neutral drift is calculated and its effect on isobaric thermal instability is carried out. Ambipolar drift heating of one-dimensional self-gravitating…
Formation of Small-Scale Condensations in the Molecular Clouds via Thermal Instability
Mohsen Nejad-Asghar, Jamshid Ghanbari
A systematic study of the linear thermal instability of a self-gravitating magnetic molecular cloud is carried out for the case when the unperturbed background is subject to local…