Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237..255h&link_type=abstract
Astrophysical Journal, Part 1, vol. 237, Apr. 1, 1980, p. 255-264.
Astronomy and Astrophysics
Astrophysics
11
Line Spectra, Magnesium, Metallic Stars, Solar Atmosphere, Solar Spectra, Stellar Spectrophotometry, Atmospheric Models, Chromosphere, Faculae, Limb Darkening, Photosphere, Solar Temperature, Spectrum Analysis, Stellar Models, Ultraviolet Spectra
Scientific paper
The observed quiet-sun profiles for a number of Mg I and II lines are compared with theoretical spectra computed for two upper-photosphere lower-chromosphere models published by Ayres and Linsky (1976). Both the Mg I and the Mg II resonance line wings, observed with the University of Hawaii Echelle Rocket Spectrographs, favor a model with a higher temperature in the upper photosphere than required to match the visible region lines 4571 and 5172. Neither model atmosphere reproduces the observed shapes in the cores of the strong lines or the limb darkening of the 4571 A intercombination line. The wings of the ultraviolet lines in plages can be reproduced either with a mean one-component atmosphere or by a two-component model with an ad hoc filling factor.
Allen Marc S.
Heasley James N. Jr.
No associations
LandOfFree
Analysis of the solar magnesium lines does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of the solar magnesium lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of the solar magnesium lines will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1697728