1887
Volume 2014, Issue 1
  • EISSN: 2223-506X

Abstract

We have discussed the effect of black body radiation on self-gravitational instability of infinite homogeneous, optically thick quantum plasma carrying a uniform magnetic field. With the help of relevant linearized perturbation quantum magneto-hydrodynamic equations of the problem, using normal mode technique, a general dispersion relation is obtained with black body radiation, quantum correction and magnetic field. Discussed when propagation vectors are longitudinal and transverse to the magnetic field, separately. The new Jeans condition of instability due to quantum correction, magnetic field and black body radiation is discussed. We find that in transverse mode of propagation the condition of Jeans instability of gaseous plasma is modified by quantum correction, magnetic field and black body radiation. In the case of longitudinal mode, it is unaffected by a magnetic field, as this mode provides the Alfven mode separately with the gravitational mode. From the curves we found that the effects of quantum correction, black body radiation and magnetic field have a stabilizing influence.

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2014-09-01
2024-04-20
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References

  1. Jeans JH. The stability of a spherical nebula. Philosophical Transactions of the Royal Society, London. 1902; 199:1.
    [Google Scholar]
  2. Chandrashekhar S. Hydrodynamics and hydromagnetic stability. Oxford: Clarendon Press 1961.
    [Google Scholar]
  3. Langer WD. The stability of interstellar clouds containing magnetic fields. The Astrophysical Journal. 1978; 225:95.
    [Google Scholar]
  4. Jacobs G, Shukla PK. Stability of molecular clouds in partially ionized self-gravitating space plasmas. Journal of Plasma Physics. 2005; 71:487.
    [Google Scholar]
  5. Pensia RK, Kumar V, Prajapat V. Role of magnetic field in contraction and fragmentation of interstellar clouds. Ultra Science. 2010; 22:2:253.
    [Google Scholar]
  6. Vranjes J, Cadez V. Gravitational instability of a homogeneous gas cloud with radiation. Astrophysics and Space Science. 1990; 164:329.
    [Google Scholar]
  7. Vaghela DS, Shrivastava HSP. Magneto-gravitational instability of a rotating homogeneous gas cloud with radiation. Czechoslovak Journal of Physics. 1994; 44:10:905.
    [Google Scholar]
  8. Shrivastava HSP, Vaghela DS. Magneto-gravitational stability of a finitely conducting interstellar medium with variable streams and radiation. Proceedings of the National Academy of Science, India. 1997; 67(A)I:75.
    [Google Scholar]
  9. Radwan AE. Variable streams self-gravitating instability of radiating rotating gas cloud. Applied Mathematics and Computation. 2004; 148:331.
    [Google Scholar]
  10. Thompson TA. Gravitational instability in radiation pressure-dominated backgrounds. Astrophysics Journal. 2008; 684:212.
    [Google Scholar]
  11. Tsintsadze NL, Chaudhary R, Shah HA, Murtaza G. Jeans instability in a magneto-radiative dusty plasma. Journal of Plasma Physics. 2008; 74:847.
    [Google Scholar]
  12. Haas F. A magnetohydrodynamic model for quantum plasmas. Physics Plasmas. 2005; 12:062117.
    [Google Scholar]
  13. Lundin J, Marklund M, Brodin G. Modified jeans instability criteria for magnetized systems. Physics Plasmas. 2008; 15:072116.
    [Google Scholar]
  14. Ren H, Wu Z, Cao J, Chu PK. Jeans instability in quantum magnetoplasma with resistive effects. Physics Plasmas. 2009; 16:072101.
    [Google Scholar]
  15. Masood W, Sallimullah M, Shah HA. A quantum hydrodynamic model for multicomponent quantum magnetoplasma with Jeans term. Physics Letters A. 2008; 372:6757.
    [Google Scholar]
  16. Sallimullah M, Jamil M, Shah HA, Murtaza G. Jeans instability in a quantum dusty magnetoplasma. Physics Plasmas. 2009; 16:014502.
    [Google Scholar]
  17. Prajapati RP, Chhajlani RK. Effect of Hall current on the Jeans instability of magnetized viscous quantum plasma. Physica Scripta. 2010; 82:055003.
    [Google Scholar]
  18. Chandrashekhar S. An Introduction to the study of stellar structure. New York: Dover Publication 1957.
    [Google Scholar]
  19. Herrengger FJ. Effects of collisions and gyroviscosity on gravitational instability in a two-component plasma. Journal of Plasma Physics. 1972; 8:393.
    [Google Scholar]
  20. Patidar AK, Pensia RK, Shrivastava V. Effect of electron inertia on radiative instability of rotating two-component gaseous plasma. Canadian Journal of Physics. 2012; 90:1209.
    [Google Scholar]
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