Now showing items 1-10 of 19
A comparison of the temperature and emission measure of X-ray active regions with coronal magnetic fields
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1979-08)
The distribution of temperature and of emission measure in X-ray active regions relative to the coronal magnetic fields has been investigated. The position of maximum temperature and the position of maximum emission measure ...
Solar soft X-rays and solar activity
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1972-06)
Peak fluxes of flare-associated 8–12 Å X-ray bursts occur at or near the time of the maximum energy content of the soft X-ray source volume. The amplitudes of flare-associated bursts may thus be used as a measure of the ...
Note on the energy scale of the Michigan OSO III ion chamber
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1972-01)
The energy scale of the Michigan OSO III soft X-ray ion chamber has been assessed by using realistic theoretical X-ray spectra. Multiplicative factors by which the data may be corrected are proposed. The factors are only ...
Radio Spectrum Of Major Outburst In Bl Lacertae Object Ao 0235+164
(Macmillan Magazines Ltd., 1976)
Core electron densities of coronal polar plumes
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1972-12)
The electron density in the cores of coronal polar plumes that is determined from observations will depend upon the assumed electron density distribution through the plume in a direction normal to its axis. Core electron ...
Power spectra of velocity fluctuations in plages
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1974-11)
Spatial power spectral densities of velocities in plages were compared with velocity power spectra of the quiet photosphere. The comparison suggests that photospheric oscillations are not gravity waves.
Soft solar X-rays and solar activity
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1971-09)
Soft solar X-rays in the wavelength interval 8–12 Å were observed from OSO III. The totality of the observations that were made between 9 March, 1967, and 18 May, 1968, is summarized graphically and compared to the course ...
Two-dimensional spatial power spectra of photospheric velocity fluctuations
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1974-03)
Two-dimensional spatial autocorrelation functions and power spectral density distributions were obtained from high-resolution velocity spectroheliograms. Although the autocorrelation functions indicate the existence of ...