Other
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.4512y&link_type=abstract
American Astronomical Society, 185th AAS Meeting, #45.12; Bulletin of the American Astronomical Society, Vol. 26, p.1381
Other
Scientific paper
Teff, g, and C/O are determined by fitting the observed spectrum of \linebreak mu Gem, spectral class M3 III, from 3000 Angstroms to 3 microns. The emergent spectrum calculated from the model atmospheres code, ATLAS8, uses the most comprehensive list of low temperature opacities (Alexander and Ferguson, 1994, Ap.J., in press) which includes atomic lines, molecules, and grains (68 million lines in all). Results show that the Teff can be well determined by the strength of the TiO bands and the shape of the continuum in the visible. Little effect is seen in the IR when Teff is changed from 3400 to 3700 K. Log(g)=1.0 is found to be consistent with other studies. A high C/O ratio (greater than 0.95) is strictly ruled out in the models when compared to the TiO bands. The allowable range in the C/O ratio, determined from comparison of the TiO bands in the visible, is from 0.44 to 0.85. Models are also compared to the BVRIJKL band observations and to the Wing spectrophotometric observations. Preliminary results of a theoretical study of M, S, and C giants show that the new list of low temperature opacities will give better determinations of Teff, g, and C/O ratio. This research is supported by NSF grant AST-9217946.
Alexander Richard D.
Young Todd R.
No associations
LandOfFree
A New Verification of Teff, g, and C/O for MU GEM 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 A New Verification of Teff, g, and C/O for MU GEM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A New Verification of Teff, g, and C/O for MU GEM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1320751