Extended static stellar atmospheres. IV - Study of an F giant

Details Extended static stellar atmospheres. IV - Study of an F giant Extended static stellar atmospheres. IV - Study of an F giant

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.179..563s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 179, June 1977, p. 563-567.

Other

5

Atmospheric Models, Atmospheric Stratification, F Stars, Giant Stars, Globular Clusters, Stellar Atmospheres, Stellar Models, Atmospheric Temperature, Gas Pressure, Optical Thickness

Scientific paper

Effects of atmospheric extension are studied for the population II F giant HD 116745 (T-eff 6550 plus of minus 150 K, log g 1.0 plus or minus 0.3, a mass ratio of 0.37). The stellar atmosphere is compact (a mass ratio of 0.74) to moderately extended (a mass ratio of 0.19) and the approximation of plane-parallel stratification may be inadequate to interpret high-accuracy observations of this star or other stars with similar stellar parameters. Simple curve-of-growth analyses are hardly affected.

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