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DC Field | Value | Language |
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dc.contributor.author | Singh, S.V. | |
dc.contributor.author | Lakhina, G.S. | |
dc.contributor.author | Bharuthram, R. | |
dc.date.accessioned | 2017-03-07T11:46:59Z | |
dc.date.accessioned | 2021-02-12T09:49:00Z | - |
dc.date.available | 2017-03-07T11:46:59Z | |
dc.date.available | 2021-02-12T09:49:00Z | - |
dc.date.issued | 1996 | |
dc.identifier.citation | Earth, Moon, and Planets, v.74/3, p.231-242, 1996, doi: 10.1007/BF00055189 | en_US |
dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/956 | - |
dc.description.abstract | Energetic protons haying ring type distributions are shown to generate low-frequency electrostatic waves, propagating nearly transverse to the geomagnetic field lines, in the ring current region by exciting Mode 1 arid Mode 2 nonresonant instabilities and a resonant instability. Mode 1 nonresonant instability has frequencies around ~4 Hz with transverse wavelengths of ~(8–80) km, and it is likely to occur in the region L = (7–8). Mode 2 nonresonant instability can generate frequencies ~(850–1450) Hz with transverse wavelengths ~(2–20) km. The typical frequencies and transverse wavelengths associated with the resonant instability are (950–1250) Hz and (30–65) km. Both the Mode 2 nonresonant instability and the resonant instability can occur in the ring current region with L = (4–6). The low-frequency modes driven by energetic protons could attain maximum saturation electric field amplitude varying from 0.8 mV/m to 70 mV/m. It is suggested that the turbulence produced by the low-frequency modes may cause pitch angle scattering of ring current protons in the region outside the plasmapause resulting in the ring current decay. | en_US |
dc.language.iso | en | en_US |
dc.subject | Electric field | en_US |
dc.subject | Energetic protons | en_US |
dc.subject | Electrostatic waves | en_US |
dc.title | Low-frequency electric field fluctuations excited by ring current protons | en_US |
dc.type | Article | en_US |
dc.identifier.accession | 091280 | |
Appears in Collections: | UAS_Reprints |
Files in This Item:
File | Description | Size | Format | |
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SinghSV_LakhinaGS_EarthMoonPlanet_1996.pdf Restricted Access | 1.07 MB | Adobe PDF | View/Open Request a copy |
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