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HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics

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HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics. / Mishin, E. V.; Kosch, M. J.; Pedersen, T. R. et al.
In: Geophysical Research Letters, Vol. 32, 12.2005, p. L23106.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Mishin, EV, Kosch, MJ, Pedersen, TR & Burke, WJ 2005, 'HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics', Geophysical Research Letters, vol. 32, pp. L23106. https://doi.org/10.1029/2005GL023864

APA

Mishin, E. V., Kosch, M. J., Pedersen, T. R., & Burke, W. J. (2005). HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics. Geophysical Research Letters, 32, L23106. https://doi.org/10.1029/2005GL023864

Vancouver

Mishin EV, Kosch MJ, Pedersen TR, Burke WJ. HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics. Geophysical Research Letters. 2005 Dec;32:L23106. doi: 10.1029/2005GL023864

Author

Mishin, E. V. ; Kosch, M. J. ; Pedersen, T. R. et al. / HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics. In: Geophysical Research Letters. 2005 ; Vol. 32. pp. L23106.

Bibtex

@article{950652bcb6d8481cac5eed5e4cf66ba1,
title = "HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics",
abstract = "We analyze airglow induced by intense radio waves at the High-frequency Active Auroral Research Program (HAARP) facility for pump frequencies f 0 near the second and third electron gyroharmonic (f c ). While passing through the double resonance in the weakening ionosphere during heating at f 0 ∼ 2f c , airglow intensities rose abruptly and remained elevated during four consecutive pulses. During this period both the thermal and parametric instabilities coexisted. Subsequently, the thermal parametric instability was hampered. The effectiveness of heating near the second gyroharmonic is ascribed to specific dispersion characteristics near the double resonance. The observations suggest that Langmuir waves participate in cyclotron acceleration when the local plasma and second gyroharmonic frequencies match. With f 0 ∼ 3f c the airglow terminated due to the suppression of cyclotron acceleration and parametric decay instability.",
keywords = "heating DCS-publications-id, art-721, DCS-publications-credits, iono, DCS-publications-personnel-id, 7",
author = "Mishin, {E. V.} and Kosch, {M. J.} and Pedersen, {T. R.} and Burke, {W. J.}",
year = "2005",
month = dec,
doi = "10.1029/2005GL023864",
language = "English",
volume = "32",
pages = "L23106",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",

}

RIS

TY - JOUR

T1 - HF-induced airglow at magnetic zenith: Thermal and parametric instabilities near electron gyroharmonics

AU - Mishin, E. V.

AU - Kosch, M. J.

AU - Pedersen, T. R.

AU - Burke, W. J.

PY - 2005/12

Y1 - 2005/12

N2 - We analyze airglow induced by intense radio waves at the High-frequency Active Auroral Research Program (HAARP) facility for pump frequencies f 0 near the second and third electron gyroharmonic (f c ). While passing through the double resonance in the weakening ionosphere during heating at f 0 ∼ 2f c , airglow intensities rose abruptly and remained elevated during four consecutive pulses. During this period both the thermal and parametric instabilities coexisted. Subsequently, the thermal parametric instability was hampered. The effectiveness of heating near the second gyroharmonic is ascribed to specific dispersion characteristics near the double resonance. The observations suggest that Langmuir waves participate in cyclotron acceleration when the local plasma and second gyroharmonic frequencies match. With f 0 ∼ 3f c the airglow terminated due to the suppression of cyclotron acceleration and parametric decay instability.

AB - We analyze airglow induced by intense radio waves at the High-frequency Active Auroral Research Program (HAARP) facility for pump frequencies f 0 near the second and third electron gyroharmonic (f c ). While passing through the double resonance in the weakening ionosphere during heating at f 0 ∼ 2f c , airglow intensities rose abruptly and remained elevated during four consecutive pulses. During this period both the thermal and parametric instabilities coexisted. Subsequently, the thermal parametric instability was hampered. The effectiveness of heating near the second gyroharmonic is ascribed to specific dispersion characteristics near the double resonance. The observations suggest that Langmuir waves participate in cyclotron acceleration when the local plasma and second gyroharmonic frequencies match. With f 0 ∼ 3f c the airglow terminated due to the suppression of cyclotron acceleration and parametric decay instability.

KW - heating DCS-publications-id

KW - art-721

KW - DCS-publications-credits

KW - iono

KW - DCS-publications-personnel-id

KW - 7

U2 - 10.1029/2005GL023864

DO - 10.1029/2005GL023864

M3 - Journal article

VL - 32

SP - L23106

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

ER -