Some properties of dispersive Alfven waves. 4. Hydrodynamics (finite and high pressure plasma)

Heading: 
1Malovichko, PP
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2014, 30(5):22-38
Start Page: Space Physics
Language: Russian
Abstract: 

The behaviour of dispersive Alfven waves (DAW) for some unstudied regions like finite and high pressure astrophysical plasma is investigated in hydrodynamic approximation. Our results are analyzed and compared with ones obtained for the kinetic approach. It is shown that in the framework of the hydrodynamic approach, as opposed to the kinetic approach, one general solution for DAW can be obtained in a finite and high pressure plasma. In a very low damping region, the kinetic and hydrodynamic solutions agreed very well, but there exist parameter regions where the solutions are essentially different, especially for high pressure plasma. The influence of astrophysical environment parameters on the DAW behaviour and properties is analyzed. All of the main wave characteristics, namely, dispersion, damping, polarization, density perturbation, and charge density perturbation, are obtained. Since a finite pressure plasma is one of most abundant among astrophysical plasma conditions, consideration of behaviour features of such waves is very important for their observations and detection as well as for more correct understanding of the behaviour and role of such waves in various astrophysical processes of cosmic environment.

Keywords: Alfven waves, hydrodynamics, plasma
References: 

1.P. P. Malovichko, “Generation of Alfven waves in the plasma sheet of the Earth’s magnetospheric tail,” Kosm. Nauka Tekhnol. 18(5), 41–47 (2012).

2.P. P. Malovichko, “Properties of dispersive Alfven waves: 1. Kinetics (very low, intermediate, and low density plasmas),” Kinem. Phys. Celest. Bodies 29, 269–284 (2013).
https://doi.org/10.3103/S0884591313060044

3.P. P. Malovichko, “Properties of dispersive Alfven waves: 2. Kinetics (finite and high density plasmas),” Kinem. Phys. Celest. Bodies 30, 22–31 (2014).
https://doi.org/10.3103/S088459131401005X

4.P. P. Malovichko, “Properties of dispersive Alfven waves: 3. Hydrodynamics (very low, intermediate, and low density plasmas),” Kinem. Phys. Celest. Bodies 30 (2014) (in press).

5.P. P. Malovichko, A. N. Krishtal’, and A. K. Yukhimuk, “Influence of temperature irregularities on the generaton of kinetic Alfven waves in the Earth’s magnetosphere,” Kinem. Phys. Celest. Bodies 22, 41–45 (2006).

6.B. D. G. Chandran, E. Quataert, G. G. Howes, Qian Xia, and Peera Pongkitiwanichakul, “Constraining low-frequency Alfvénic turbulence in the solar wind using density-fluctuation measurements,” Astrophys. J. 707, 1668–1675 (2009).
https://doi.org/10.1088/0004-637X/707/2/1668

7.L. Chen and D. J. Wu, “Kinetic Alfven wave instability driven by field-aligned currents in solar coronal loops,” Astrophys. J. 754, 123 (2012).
https://doi.org/10.1088/0004-637X/754/2/123

8.N. F. Cramer, The Physics of Alfven Waves (Wiley, New York, 2001).
https://doi.org/10.1002/3527603123

9.W. Farrell, S. Curtis, M. Desch, and R. P. Lepping, “A theory for narrow-banded radio bursts at Uranus: MHD surface waves as an energy driver,” J. Geophys. Res.: Space Phys. 97, 4133–4141 (1992).
https://doi.org/10.1029/91JA03143

10.J. Hanasz, H. de Feraudy, R. Schreiber, and M. Panchenko, “Pulsations of the auroral kilometric radiation,” J. Geophys. Res.: Space Phys. 111, A03209 (2006).

11.J. V. Hollweg, “Kinetic Alfven wave revisited,” J. Geophys. Res.: Space Phys. 104, 14811–14819 (1999).
https://doi.org/10.1029/1998JA900132

12.R. Lehe, I. J. Parrish, and E. Quataert, “The heating of test particles in numerical simulations of Alfvenic turbulence,” Astrophys. J. 707, 404–419 (2009).
https://doi.org/10.1088/0004-637X/707/1/404

13.Y. Lin, J. R. Johnson, and X. Y. Wang, “Hybrid simulation of mode conversion at the magnetopause,” J. Geophys. Res.: Space Phys. 115, A04208 (2010).

14.M. Malik, R. P. Sharma, and H. D. Singh, “Ion-acoustic wave generation by two kinetic Alfven waves and particle heating,” Sol. Phys. 241, 317–328 (2007).
https://doi.org/10.1007/s11207-007-0331-6

15.P. P. Malovichko, “Correlation of longitudinal currents with Alfven wave generation in the solar atmosphere,” Kinem. Phys. Celest. Bodies 23, 185–190 (2007).
https://doi.org/10.3103/S0884591307050017

16.P. P. Malovichko, “Stability of magnetic configurations in the solar atmosphere under temperature anisotropy conditions,” Kinem. Phys. Celest. Bodies 24, 236–241 (2008).
https://doi.org/10.3103/S0884591308050024

17.P. P. Malovichko, “Generation of low-frequency magnetic field disturbances in coronal loops by proton and electron beams,” Kinem. Phys. Celest. Bodies 26, 62–70 (2010).
https://doi.org/10.3103/S0884591310020030

18.R. P. Sharma and S. Kumar, “Nonlinear excitation of fast waves by dispersive Alfven waves and solar coronal heating,” Sol. Phys. 267, 141–151 (2010).
https://doi.org/10.1007/s11207-010-9634-0

19.R. P. Sharma and M. Malik, “Non-linear interaction of the kinetic Alfven waves and the filamentation process in the solar wind plasma,” Astron. Astrophys. 457, 675–680 (2006).
https://doi.org/10.1051/0004-6361:20054715

20.Y.-J. Su, R. E. Ergun, S. T. Jones, R. J. Strangeway, C. C. Chaston, S. E. Parker, and J. L. Horwitz, “Generation of short-burst radiation through Alfvenic acceleration of auroral electrons,” J. Geophys. Res.: Space Phys. 112, A06209 (2007).

21.S. Whitelam, J. M. A. Ashbourn, R. Bingham, P. K. Shukla, and D. S. Spicer, “Alfven wave heating and acceleration of plasmas in the solar transition region producing jet-like eruptive activity,” Sol. Phys. 211, 199–219 (2002).
https://doi.org/10.1023/A:1022408206824

22.D. J. Wu, “Dissipative solitary kinetic Alfven waves and electron acceleration in the solar corona,” Space Sci. Rev. 121, 333–342 (2005).
https://doi.org/10.1007/s11214-006-4450-4

23.D. J. Wu and C. Fang, “Sunspot chromospheric heating by kinetic Alfven waves,” Astrophys. J. Lett. 659, L181–L184 (2007).
https://doi.org/10.1086/518033