Results 151 to 160 of about 995 (183)

A study of energetic solar flare X-rays

Solar Physics, 1967
A new series of solar flare energetic X-ray events has been detected by an ionization chamber on the OGO-I and OGO-III satellites in free space. These X-rays lie in the range 10–50 keV, and a study has been made of their relationship to 3 and 10 cm radio bursts and with the emission of electrons and protons observed in space.
R. L. Arnoldy, S. R. Kane, J. R. Winckler   +2 more
openaire   +1 more source

Determination of the temperature in a solar X-ray flare

Journal of Atmospheric and Terrestrial Physics, 1973
Abstract The equivalent temperature in a solar X-ray flare for λ ≈ 2 A . is deduced from the measurement of the X-ray flux by Explorer 37 and the simultaneous measurement of the ionospheric electron density by VLF and LF records on the Rugby-Turin link. These data yield the value of the effective photoionization cross section in the band 1
openaire   +1 more source

Impulsive X-ray brightenings in solar flares

Advances in Space Research, 1996
Abstract An analysis of 40 solar flares observed with the Yohkoh satellite was carried out to investigate the temporal relationship between rapid hard and soft X-ray flaring. Using Bragg Crystal Spectrometer (BCS) and Hard X-ray Telescope (HXT) data it was found that in every event the Neupert effect occurred throughout most of the impulsive phase.
openaire   +1 more source

Solar flare X-ray spectra

Solar Physics, 1979
V. V. Korneev, V. V. Krutov, S. L. Mandelstam, A. M. Urnov, I. A. Zhitnik, E. Ya. Golts, E. Ya. Kononov, Y. V. Sidelnikov   +7 more
openaire   +2 more sources

Solar flare hard X-ray observations

Solar Physics, 1988
Recent hard X-ray observations of solar flares are reviewed with emphasis on results obtained with instruments on the Solar Maximum Mission satellite. Flares with three different sets of characteristics, designated as Type A, Type B, and Type C, are discussed and hard X-ray temporal, spatial, spectral, and polarization measurements are reviewed in this
openaire   +1 more source

Solar flare X-ray spectra

Solar Physics, 1980
V. V. Korneev, V. V. Krutov, S. L. Mandelstam, B. Sylwester, I. P. Tindo, A. M. Urnov, B. Valníček, I. A. Zhitnik   +7 more
openaire   +1 more source

Investigation of Hemispherical Variations of Soft X-Ray Solar Flares during Solar Cycles 21 to 24

Solar System Research, 2021
Sankar Narayan Patra, Soumya Roy, Koushik Ghosh   +2 more
exaly  

Spectra of solar x-ray flares

Soviet Physics Uspekhi, 1979
I.A. Zhitnik, É.Ya. Kononov, V.V. Korneev, V.V. Krutov, S.L. Mandel'shtam, A.M. Urnov   +5 more
openaire   +1 more source

Hard X-Ray Emission in Solar Flares

2021
Michele Piana, A. Gordon Emslie, Anna Maria Massone, Brian R. Dennis   +3 more
openaire   +1 more source

Modeling of the Lower Ionosphere During Solar X‐Ray Flares of Different Classes

Journal of Geophysical Research: Space Physics, 2021
Susanna Bekker, Ilya Ryakhovsky
exaly