Abstract
view Abstract Citations (4) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Electron Density Diagnostics for Late-Type Stellar Atmospheres Keenan, F. P. ; Dufton, P. L. ; Aggarwal, K. M. ; Kingston, A. E. Abstract R-matrix calculations of electron excitation rates in C III, O III, and Si IV have been used to obtain several theoretical emission-line ratios for a range of electron temperatures and densities applicable to late-type stellar atmospheres. Data are derived for the ratios I(C III 1908 A)/I(O III 1666 A), I(O III 1666 A)/I(Si IV 1402 A), and I(C III 1908 A)/I(Si IV 1402 A). It is suggested that differences found between the results and those of Doschek et al. (1978) are due to the present adoption of improved atomic data. Publication: The Astrophysical Journal Pub Date: January 1988 DOI: 10.1086/165963 Bibcode: 1988ApJ...324.1068K Keywords: Electron Density (Concentration); Late Stars; Plasma Diagnostics; Stellar Atmospheres; Stellar Spectra; Ultraviolet Spectra; Carbon; Electron Energy; Emission Spectra; Oxygen; Silicon; Astrophysics; ATOMIC PROCESSES; STARS: ATMOSPHERES; STARS: LATE-TYPE; ULTRAVIOLET: SPECTRA full text sources ADS |
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