A multithermal analysis of solar X-ray emission

Autor:	Donald M. Horan, Kenneth P. Dere, R. W. Kreplin
Rok vydání:	1974
Předmět:	Physics Electron density Solar flare Space and Planetary Science Astrophysics::High Energy Astrophysical Phenomena Ionization Bremsstrahlung Measure (physics) Astronomy and Astrophysics Spontaneous emission Astrophysics Emission spectrum Spectral line
Zdroj:	Solar Physics. 36:459-472
ISSN:	1573-093X 0038-0938
DOI:	10.1007/bf00151215
Popis:	The NRL SOLRAD 10 satellite carries six ionization chambers to measure solar X-radiation in the 0.5 to 60 A wavelength band. The X-ray emission spectrum in this range is determined by the derivative of the coronal emission measure (∫ Ne2dV) with respect to temperature when the thermal processes of bremsstrahlung, radiative recombination and line radiation are considered. If a simple model for this differential emission measure is used and detector responses to the calculated spectra are fitted to the SOLRAD data by a least squares method, the differential emission measure can be obtained for temperatures between 2 × 106K and 64 × 106K. Data during quiet and flaring periods are analyzed and the general behavior of the differential emission measure during flares is presented. This analysis is based on experimental measurements of the efficiencies of the SOLRAD detectors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1c29a3358e0a0f945d8b1e8f2cbbf4d7 https://doi.org/10.1007/bf00151215 Zobrazit plný text záznamu Full text from SpringerLink