Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333..925m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 333, Oct. 15, 1988, p. 925-935. Research supported by the Ministero della P
Astronomy and Astrophysics
Astrophysics
7
Carbon Monoxide, Late Stars, Magnetic Flux, Molecular Structure, Stellar Atmospheres, Atmospheric Temperature, Magnetic Stars, Surface Temperature
Scientific paper
The authors determine the structure of a stellar atmosphere and of a thin magnetic flux tube embedded in it, taking the opacity by H- and carbon monoxide into account. It is found that CO has a strong cooling effect on the external atmosphere. For effective temperatures below ≡5900K, the surface temperature of the atmosphere with H- and CO opacity is much lower than with H- alone. In the interior of the flux tube the equations can have multiple solutions. Thus hot flux tubes can exist in a cool atmosphere even in the absence of nonradiative heating.
Bodo Gianluigi
Kalkofen Wolfgang
Massaglia Silvano
Rosner Robert
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