Computer Science
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993kfnt....9...70b&link_type=abstract
Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 9, no. 4, p. 70-78.
Computer Science
Absorption Spectra, Helium Atoms, Line Shape, Line Spectra, Neutral Gases, Solar Atmosphere, Comparison, Solar Limb, Temperature Gradients
Scientific paper
The quiet solar atmosphere mode is used to construct a theoretical profile of the 1083 nm neutral helium absorption line. A comparison with the observed profile is performed. A line formation mechanism is proposed. It is argued that the line is not the result of a simple imposition of the chromospheric emission line on the photospheric absorption line in accordance with the temperature gradient sign in the chromosphere and the photosphere. It is in the chromosphere that the optical thickness of the line exceeds the optical thickness in the continuum; however, the absorption line itself is formed in the photosphere. Center-to-limb variations of the line are explained qualitatively for different regions. A theoretical explanation is presented for the transition of this line from the center of the solar disk to the edge, with the subsequent transformation of the absorption line into an emission line.
Babyij B. T.
Koval'Chuk M. M.
Rikalyuk Je. R.
No associations
LandOfFree
Theoretical investigation of the 1083 NM helium absorption line in the atmosphere of a quiescent sun 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 Theoretical investigation of the 1083 NM helium absorption line in the atmosphere of a quiescent sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical investigation of the 1083 NM helium absorption line in the atmosphere of a quiescent sun will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1493843