• Effect of radiative cooling on collapsing charged grains

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      https://www.ias.ac.in/article/fulltext/pram/056/01/0095-0105

    • Keywords

       

      Jeans instability; radiative cooling; dusty plasma

    • Abstract

       

      The effect of the radiative cooling of electrons on the gravitational collapse of cold dust grains with fluctuating electric charge is investigated. We find that the radiative cooling as well as the charge fluctuations, both, enhance the growth rate of the Jeans instability. However, the Jeans length, which is zero for cold grains and nonradiative plasma, becomes finite in the presence of radiative cooling of electrons and is further enhanced due to charge fluctuations of grains resulting in an increased threshold of the spatial scale for the Jeans instability.

    • Author Affiliations

       

      BP Pandey1 Vinod Krishan1 2 M Roy1

      1. Centre for Plasma Astrophysics, K. U. Leuven, Celestijnenlaan 200B, Heverlee - 3001, Belgium
      2. Indian Institute of Astrophysics, Koramangala, Bangalore - 560 034, India
    • Dates

       
  • Pramana – Journal of Physics | News

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