Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44..309t&link_type=abstract
Astronomical Society of Japan, Publications (ISSN 0004-6264), vol. 44, no. 3, 1992, p. 309-324.
Astronomy and Astrophysics
Astronomy
41
Hertzsprung-Russell Diagram, Line Spectra, Oxygen Atoms, Stellar Atmospheres, Stellar Luminosity, Turbulence Effects, A Stars, Abundance, Atmospheric Turbulence, F Stars, Stellar Spectra
Scientific paper
The behavior of the microturbulence (xi) in the H-R diagram corresponding to A-F stars is investigated, based on a comparison of the observed and theoretical strengths of the O I triplet lambda 7771-5. The non-LTE effect, which along with xi significantly affects the strength of this line, was adequately accounted for by applying the results from detailed non-LTE calculations performed on a sufficiently realistic model O I atom. It is seen that for stars of the luminosity classes III-V, there seems to exist a maximum peak of xi at about late A, which may be related to a convective zone lying near to the photosphere in stars of this spectral type.
No associations
LandOfFree
Strength of the O I triplet lambda 7771-5 and atmospheric microturbulence in A-F stars 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 Strength of the O I triplet lambda 7771-5 and atmospheric microturbulence in A-F stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strength of the O I triplet lambda 7771-5 and atmospheric microturbulence in A-F stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1523100