Residual intensity fluctuation measurements within the wings of the 25183.6 MgI bl line, obtained from two, high-resolution, high-dispersion, Sacramento Peak Observatory spectrograms, have been subtracted from intensity fluctuations in the adjacent continuum in order to isolate fluctuations associat
Spectral analyses of solar photospheric fluctuations
β Scribed by Frank N. Edmonds
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 275 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0038-0938
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π SIMILAR VOLUMES
Amplitude distributions, which are nearly Gaussian, have been calculated for radial velocity, continuum brightness, spectral line equivalent width and spectral line central residual intensity fluctuations measured from high-dispersion high-resolution spectrograms taken at the center of the solar dis
The general problem of interpreting granulation data, in particular Edmonds' r.m.s. intensity fluctuation distribution against heliocentric angle 0, is discussed. A inethod is developed for investigating a variety of models of inhomogelaeous departures fi'om radiative equilibrium using two dimensio
The fractional convective flux nFc(xc)/zcF is computed for the effective level Xc =logrc =0.125, using bi-dimensional co-spectra for relative continuum-brightness fluctuations AI and radial velocity fluctuations A V measured for the C I 5052.16 spectral line. A more uncertain flux for xre ~-0.9 is o
A new value of the solar photospheric abundance of iron, independent of line-shape parameters, is derived. Our analysis is based on a study of 40 weak infrared lines (0.85<2<2.5/-0 for which theoretical oscillator strengths (calculated with configuration interactions taken into account) have recentl