scholarly journals Generation of Auroral Kilometric Radiation in a dipole magnetic field: 3-D approach

2018 ◽  
Keyword(s):  
Magnetic Field ◽  
Auroral Kilometric Radiation ◽  
Dipole Magnetic Field

Generation of auroral kilometric radiation by a finite-size source in a dipole magnetic field. Part II

2017 ◽  
Vol 43 (9) ◽  
pp. 910-915 ◽  
Author(s):  
T. M. Burinskaya ◽  
M. M. Shevelev
Keyword(s):  
Magnetic Field ◽  
Finite Size ◽  
Auroral Kilometric Radiation ◽  
Dipole Magnetic Field

Generation of auroral kilometric radiation by a finite-size source in a dipole magnetic field

2016 ◽  
Vol 42 (10) ◽  
pp. 929-935 ◽  
Author(s):  
T. M. Burinskaya ◽  
M. M. Shevelev
Keyword(s):  
Magnetic Field ◽  
Finite Size ◽  
Auroral Kilometric Radiation ◽  
Dipole Magnetic Field

Particle balance in a steady state plasma in a dipole magnetic field

2019 ◽  
Vol 1 (4) ◽  
pp. 045005 ◽  
Author(s):  
Anuj Ram Baitha ◽  
Ayesha Nanda ◽  
Sargam Hunjan ◽  
Sudeep Bhattacharjee
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
Dipole Magnetic Field ◽  
Particle Balance ◽  
State Plasma

scholarly journals Spin-down rate and inferred dipole magnetic field of the soft gamma-ray repeater SGR 1627-41

2009 ◽  
Vol 399 (1) ◽  
pp. L44-L48 ◽  
Author(s):  
P. Esposito ◽  
M. Burgay ◽  
A. Possenti ◽  
R. Turolla ◽  
S. Zane ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Gamma Ray ◽  
Dipole Magnetic Field

Effect of Long-Wavelength Magnetic Field Disturbances on the Generation of Auroral Kilometric Radiation

2018 ◽  
Vol 44 (11) ◽  
pp. 1026-1032
Author(s):  
T. M. Burinskaya ◽  
M. M. Shevelev
Keyword(s):  
Magnetic Field ◽  
Long Wavelength ◽  
Auroral Kilometric Radiation

scholarly journals First results from the Cluster wideband plasma wave investigation

2001 ◽  
Vol 19 (10/12) ◽  
pp. 1259-1272 ◽  
Author(s):  
D. A. Gurnett ◽  
R. L. Huff ◽  
J. S. Pickett ◽  
A. M. Persoon ◽  
R. L. Mutel ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Wave Packet ◽  
Plasma Wave ◽  
Bright Spot ◽  
Deep Space ◽  
Good Correspondence ◽  
Auroral Kilometric Radiation ◽  
First Results ◽  
One To One ◽  
The Magnetic Field

Abstract. In this report we present the first results from the Cluster wideband plasma wave investigation. The four Cluster spacecraft were successfully placed in closely spaced, high-inclination eccentric orbits around the Earth during two separate launches in July – August 2000. Each spacecraft includes a wideband plasma wave instrument designed to provide high-resolution electric and magnetic field wave-forms via both stored data and direct downlinks to the NASA Deep Space Network. Results are presented for three commonly occurring magnetospheric plasma wave phenomena: (1) whistlers, (2) chorus, and (3) auroral kilometric radiation. Lightning-generated whistlers are frequently observed when the spacecraft is inside the plasmasphere. Usually the same whistler can be detected by all spacecraft, indicating that the whistler wave packet extends over a spatial dimension at least as large as the separation distances transverse to the magnetic field, which during these observations were a few hundred km. This is what would be expected for nonducted whistler propagation. No case has been found in which a strong whistler was detected at one spacecraft, with no signal at the other spacecraft, which would indicate ducted propagation. Whistler-mode chorus emissions are also observed in the inner region of the magnetosphere. In contrast to lightning-generated whistlers, the individual chorus elements seldom show a one-to-one correspondence between the spacecraft, indicating that a typical chorus wave packet has dimensions transverse to the magnetic field of only a few hundred km or less. In one case where a good one-to-one correspondence existed, significant frequency variations were observed between the spacecraft, indicating that the frequency of the wave packet may be evolving as the wave propagates. Auroral kilometric radiation, which is an intense radio emission generated along the auroral field lines, is frequently observed over the polar regions. The frequency-time structure of this radiation usually shows a very good one-to-one correspondence between the various spacecraft. By using the microsecond timing available at the NASA Deep Space Net-work, very-long-baseline radio astronomy techniques have been used to determine the source of the auroral kilometric radiation. One event analyzed using this technique shows a very good correspondence between the inferred source location, which is assumed to be at the electron cyclotron frequency, and a bright spot in the aurora along the magnetic field line through the source.Key words. Ionosphere (wave-particle interactions; wave propagation) – Magnetospheric physics (plasma waves and instabilities; instruments and techniques)

scholarly journals Dependence of the Spring-Autumnal asymmetry in geomagnetic activity on the solar main dipole magnetic field polarity over last 140 years

2018 ◽  
Vol 158 ◽  
pp. 1-5
Author(s):  
X.M. Sha ◽  
A.M. Du ◽  
H. Luo ◽  
Y.S. Ge ◽  
Y. Zhang
Keyword(s):  
Magnetic Field ◽  
Geomagnetic Activity ◽  
Field Polarity ◽  
Dipole Magnetic Field

scholarly journals Correction to “On field line resonance of hydromagnetic Alfvén waves in dipole magnetic field”

1989 ◽  
Vol 16 (9) ◽  
pp. 1079-1079
Author(s):  
Liu Chen ◽  
Steven C. Cowley
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Field Line Resonance ◽  
Dipole Magnetic Field ◽  
Line Resonance

scholarly journals Modeling ULF waves in a compressed dipole magnetic field

2010 ◽  
Vol 115 (A10) ◽  
pp. n/a-n/a ◽  
Author(s):  
A. W. Degeling ◽  
R. Rankin ◽  
K. Kabin ◽  
I. J. Rae ◽  
F. R. Fenrich
Keyword(s):  
Magnetic Field ◽  
Ulf Waves ◽  
Dipole Magnetic Field
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