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  • 1
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    Abundance determination in solar active region (1994)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: An improved method has been developed to evaluate element abundances from emission line intensities of thin plasmas, depending on the differential emission measure (DEM) of the source. Observations made by the Solar EUV Rocket Telescope and Spectrograph (SERTS) Rocket EUV Spectrograph are used to perform a detailed analysis of the DEM distribution for temperatures larger than 10(exp 5) K in a solar active region. Comparison of the DEM distributions obtained by means of lines from different elements allows the verification of relative abundances for the most common elements of the solar corona, and gives an abundance estimates for the minor components, such as Na, Al, Ar, Cr, Mn and Zn.
    Keywords: SOLAR PHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 14; 4; p. (4)163-(4)166
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  • 2
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    Solar X-ray spectra (1969)
    In:  CASI
    Details
    Publication Date: 2005-11-17
    Description: Solar X ray spectra
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI., 1968 1969; P 103-107
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  • 3
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    Response of GAS payload (G345 and G347) temperatures to various orbiter flight attitudes (1986)
    In:  CASI
    Details
    Publication Date: 2006-06-12
    Description: At the beginning of the Get-Away Special (GAS) flight program, the GAS Project flew a Flight Verification Payload on STS-3 to make measurements of the vibrations, acoustic and magnetic environments of the canister, and to obtain thermal profiles of internal and external components of the GAS system. Two types of GAS canister end caps (insulated end cap and silverized teflon covered end cap) were used on the two flights (STS-7 and STS-8) so that a direct comparison of the thermal performance was obtained. These observations were compared with a simple thermal model of the instrument in the GAS canister in order to assess whether such simple models can be useful to experimenters in predicting the thermal response of their payloads.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: The 1985 Get Away Special Experimenter's Symposium; p 151-164
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  • 4
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    Soft solar X-rays (1970)
    In:  CASI
    Details
    Publication Date: 2006-04-25
    Description: Analysis on soft solar X-ray spectra of solar flares
    Keywords: SPACE RADIATION
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 123-126
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  • 5
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    Satellite lines in the solar X-ray spectrum (1971)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Solar X-ray line emission, using crystal spectrometers during large chromospheric flare
    Keywords: SPACE RADIATION
    Type: ; HYSICAL PROCESSES IN
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  • 6
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    Workshop on orbiting solar observatories (1971)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: OSO satellites observations, studying X ray flare phases, temperatures and spectra
    Keywords: SPACE SCIENCES
    Type: ; TA FREQUENZA (
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  • 7
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    Resonance and satellite lines of highly ionized iron in the solar spectrum near 1.9 A (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Resonance and satellite lines of highly ionized iron in solar spectra, discussing spectrum features during chromospheric flares
    Keywords: SPACE SCIENCES
    Type: ; 37 (
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  • 8
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    Polarization results of solar X-rays from OSO-7 (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Polarization measurements of solar X-ray events that were obtained with an instrument on OSO-7 are presented. The results appear to be consistent with the results of Tindo et al. on the existence and magnitudes of polarization. A comparison with polarization predictions when X-rays are produced by radial beams of electrons gives two examples of deviations from such a model.
    Keywords: SOLAR PHYSICS
    Type: Solar Physics; 37; Aug. 197
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  • 9
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    Ionization equilibrium in soft X-ray-emitting solar flares (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Studies of the 1.9-A line produced by highly ionized iron during a solar flare indicate that this emission occurs under conditions approaching a steady-state ionization equilibrium. Time-dependent and steady-state ionization equilibrium values are used for calculation of 1.9 A line fluxes per unit flare emission. The results are compared with those obtained by observations of some four solar flares, showing that the calculations from time-dependent equilibrium values approximate the observed line flux values with the same accuracy as the calculations from steady-state equilibrium values only when the electron densities are equal to or greater than 10 billion per cu cm.
    Keywords: SPACE RADIATION
    Type: Solar Physics; 36; June 197
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  • 10
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    On helium-like 1s2l-1snl prime transitions in solar flare spectra (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Expected wavelengths and intensities are computed for 1s2l-1snl prime transitions in helium-like ions of the abundant elements from oxygen to iron under coronal conditions. Probable observations of some of these lines in the spectra of solar flares are discussed, and attention is called to a possible reversal of singlet and triplet intensities as compared to laboratory observations.
    Keywords: SPACE RADIATION
    Type: Solar Physics; 36; May 1974
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