Electrostatic drift shocks and drift wave instability in inhomogeneous rotating electron-positron-ion plasmas

The electrostatic drift wave shocks are studied in inhomogeneous rotating e-p-i plasma of the pulsar atmosphere. In this regard, the dissipation due to ion-neutral collisions is considered, which facilitate the formation of shock structures. It is noticed that these structures can move with the velo...

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Bibliographic Details
Published in:Physics of plasmas 2012-09, Vol.19 (9)
Main Author: Haque, Q.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Collisions
Drift
ELECTRONS
Electrostatics
Instability
MAGNETIC FIELDS
PLASMA
PLASMA DRIFT
PLASMA INSTABILITY
Plasmas
POSITRON-ION COLLISIONS
POSITRONS
PULSARS
Rotating
ROTATION
Rotational
SHOCK WAVES
SPACE CHARGE
Stability
WAVE PROPAGATION
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Summary:The electrostatic drift wave shocks are studied in inhomogeneous rotating e-p-i plasma of the pulsar atmosphere. In this regard, the dissipation due to ion-neutral collisions is considered, which facilitate the formation of shock structures. It is noticed that these structures can move with the velocity of the drift wave which is not possible without considering the rotational effects. Several limiting cases are also discussed. In addition, the drift wave instability is obtained when electrons and positrons could not cancel out the space charge effects along the magnetic field lines in the presence of electron-ion and positron-ion collisions. Further, it is found that this instability is sensitive to rotational frequency of the object. The importance of the results with relevance to astrophysical plasmas is also pointed out.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4750057