Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Previously unreported optical emissions generated during ionospheric heating
AU - Mutiso, C.K.
AU - Hughes, J.M.
AU - Sivjee, G.G.
AU - Pedersen, T.
AU - Gustavsson, B.
AU - Kosch, M.J.
N1 - Copyright (2008) American Geophysical Union. Further reproduction or electronic distribution is not permitted.
PY - 2008/7/19
Y1 - 2008/7/19
N2 - Several radio-induced optical emissions were generated during an ionospheric heating experiment performed at the High Power Auroral Stimulation (HIPAS) facility near Two Rivers, Alaska. The O+ 732–733 nm and O(3 D o) 799.0 nm emissions, previously unreported from ionospheric heating experiments, were detected, in addition to the already documented O(3 P) 844.6 nm and O(5 P) 777.4 nm emissions. Maximum emission intensity was observed in the magnetic zenith, when the heater was transmitting continuous wave O-mode, at a frequency of 2.85 MHz. A modified Czerny-Turner grating spectrometer was used to acquire high resolution optical spectra of the induced emissions, which were synchronized to the heater duty cycle. Candidate mechanisms for the production of the radio-induced emissions, which occurred before the “double resonance” condition, are presented.
AB - Several radio-induced optical emissions were generated during an ionospheric heating experiment performed at the High Power Auroral Stimulation (HIPAS) facility near Two Rivers, Alaska. The O+ 732–733 nm and O(3 D o) 799.0 nm emissions, previously unreported from ionospheric heating experiments, were detected, in addition to the already documented O(3 P) 844.6 nm and O(5 P) 777.4 nm emissions. Maximum emission intensity was observed in the magnetic zenith, when the heater was transmitting continuous wave O-mode, at a frequency of 2.85 MHz. A modified Czerny-Turner grating spectrometer was used to acquire high resolution optical spectra of the induced emissions, which were synchronized to the heater duty cycle. Candidate mechanisms for the production of the radio-induced emissions, which occurred before the “double resonance” condition, are presented.
KW - heating DCS-publications-id
KW - art-1028
KW - DCS-publications-credits
KW - iono
KW - DCS-publications-personnel-id
KW - 193
KW - 7
U2 - 10.1029/2008GL034563
DO - 10.1029/2008GL034563
M3 - Journal article
VL - 35
SP - 1
EP - 6
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - L14103
ER -