Estimating the average energy of auroral electrons from 427.8 nm emission intensity measurements
Journal Title: Solar-Terrestrial Physics - Year 2024, Vol 10, Issue 4
Abstract
We propose a method for estimating average energy of precipitating electrons from 427.8 nm emission intensity measurements. This method is based on the experimental dependence of the ratio of λ630.0 and λ427.8 nm emission intensities on the λ427.8 emission intensity and model calculations of the dependence of the average auroral electron energy on the I₆₃₀.₀/I₄₂₇.₈ ratio. We present numerical estimates of the influence of three factors on this dependence: the shape of the auroral electron energy spectrum, the atomic oxygen concentration, and the NO concentration. The dependence of the average energy of the auroral electron flux on the 427.8 nm emission intensity is obtained and its analytical approximation is presented.
Authors and Affiliations
Dashkevich Z. V. , Ivanov V. E.
Keywords
Related Articles
- EP ID EP753753
- DOI 10.12737/stp-104202408
- Views 29
- Downloads 0
COMPARING METHODS TO ESTIMATE CLOUD COVER OVER THE BAIKAL NATURAL TERRITORY IN DECEMBER 2020
The paper addresses the issue of how much cloud cover data obtained using satellite and model-interpolation techniques are suitable for monitoring the transparency of the atmosphere and determining conditions for airglow...
Estimating the average energy of auroral electrons from 427.8 nm emission intensity measurements
We propose a method for estimating average energy of precipitating electrons from 427.8 nm emission intensity measurements. This method is based on the experimental dependence of the ratio of λ630.0 and λ427.8 nm emissio...
RESULTS OF JOINT OBSERVATIONS WITH SOLAR SPECTROPOLARIMETER OF METER RANGE WAVELENGTHS AND OTHER INSTRUMENTS
Solar radiation is emitted in the wide frequency range from gamma to radio emission. Hence, joint observations from different instruments and frequency ranges let us to complete full representation of the evolution of so...
QUASI-PERIODIC OSCILLATIONS OF SMALL-SCALE MAGNETIC STRUCTURES AND A SPECIFIC METHOD FOR MEASURING THE DIFFERENTIAL ROTATION OF THE SUN
The SDO/HMI data with an angular resolution of 1 arcsec have been used to explore the differential rotation on the Sun, using an original “p2p” effect on the basis of the movement of small-scale magnetic structures in th...
STRUCTURE OF GROUPS OF EIGENFREQUENCIES IN SPECTRA OF GEOMAGNETIC PULSATIONS IN THE NIGHTSIDE MAGNETOSPHERE
Using a new method of correlation function for amplitude and phase fluctuations (APCF), records of geomagnetic field component fluctuations (observatories Mondy and Borok) have been processed for a number of hour zones o...