UPA Perpustakaan Universitas Jember

Molecular cloud formation via thermal instability of finite resistive viscous radiating plasma with finite Larmor radius corrections

KAOTHEKAR, Sachin - Personal Name

The effect of radiative heat-loss function and fi-
nite ion Larmor radius (FLR) corrections on the thermal in-
stability of infinite homogeneous viscous plasma has been
investigated incorporating the effects of thermal conduc-
tivity and finite electrical resistivity for the formation of a
molecular cloud. The general dispersion relation is derived
using the normal mode analysis method with the help of rel-
evant linearized perturbation equations of the problem. Fur-
thermore the wave propagation along and perpendicular to
the direction of external magnetic field has been discussed.
Stability of the medium is discussed by applying Routh Hur-
witz’s criterion and it is found that thermal instability cri-
terion determines the stability of the medium. We find that
the presence of radiative heat-loss function and thermal con-
ductivity modify the fundamental criterion of thermal insta-
bility into radiatively driven thermal instability criterion. In
longitudinal direction FLR corrections, viscosity, magnetic
field and finite resistivity have no effect on thermal insta-
bility criterion. The presence of radiative heat-loss function
and thermal conductivity modify the fundamental thermal
instability criterion into radiatively driven thermal instability
criterion. Also the FLR corrections modify the growth rate
of the Alfven mode. For transverse wave propagation FLR
corrections, radiative heat-loss function, magnetic field and
thermal conductivity modify the thermal instability crite-
rion. From the curves it is clear that heat-loss function, FLR
corrections and viscosity have stabilizing effect, while finite
resistivity has destabilizing effect on the thermal modes. Our
results show that the FLR corrections and radiative heat-
loss functions affect the evolution of interstellar molecular
clouds and star formation.

EB00000004072K Available

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E-Jurnal

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Molecular cloud formation
Thermal instability
Radiative heat-loss function
FLR corrections
Finite resistivity

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Statement of Responsibility

Sachin Kaothekar

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Molecular cloud formation via thermal instability of finite resistive viscous radiating plasma with finite Larmor radius corrections

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NPP. 3509212D1000001

Molecular cloud formation via thermal instability of finite resistive viscous radiating plasma with finite Larmor radius corrections

KAOTHEKAR, Sachin - Personal Name

Series Title

Call Number

Publisher

Collation

Language

ISBN/ISSN

Classification

Content Type

Media Type

Carrier Type

Edition

Subject(s)

Specific Detail Info

Statement of Responsibility

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