Thermal instability of an optically thin dusty plasma | Zendy

Madhurjya P. Bora | Zendy

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Thermal instability of an optically thin dusty plasma

Author(s) -

Madhurjya P. Bora

Publication year - 2003

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.1593984

Subject(s) - dusty plasma , plasma , instability , condensation , radiative cooling , isobaric process , thermal instability , physics , radiative transfer , thermal , thermal stability , atomic physics , materials science , mechanics , molecular physics , optics , thermodynamics , nuclear physics , quantum mechanics

We investigate the role of thermal instability, arising from radiativecooling of an optically thin, dusty plasma, by linear stability analysis. Thecorresponding isobaric stability condition for condensation mode is found to bemodified significantly by the degree of ionization and concentration of finitesized, relatively heavy, and negatively charged dust particles. It has beenshown that though the fundamental wave mode is similar in nature to the one inabsence of dust particles, a new dust-wave mode can propagate in such a plasma.It is conjectured that the presence of negatively charged dust particles mayconsiderably affect the stability of various astrophysical structures againstthermal instability, which can not be explained with the help of gravitationalinstability.

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