Red giant model atmospheres. IV - Colors of K and M giant models

Details Red giant model atmospheres. IV - Colors of K and M giant models Red giant model atmospheres. IV - Colors of K and M giant models

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301..868s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. 868-876.

Astronomy and Astrophysics

Astrophysics

7

K Stars, Red Giant Stars, Stellar Atmospheres, Stellar Color, Stellar Models, Stellar Spectrophotometry, Stellar Temperature, Limb Darkening, M Stars, Molecular Spectra

Scientific paper

Photometric parameters in the Johnson broad-band and Wing narrow-band photometric systems have been computed for 24 stellar atmospheric models of K and M giants of Johnson, Bernat, and Krupp (1980). Color temperatures, color indices, and certain molecular indices predicted by these models are compared with observations of M giant stars. Good agreement is obtained for effective temperatures of 3500 K or greater, which provides evidence for the overall accuracy of the models. The comparisons support the higher effective temperature scales of Tsuji (1978, 1981) and Ridgway et al. (1980). For models with effective temperatures below 3500 K, the TiO bands are systematically too weak relative to observations. Possible reasons for this discrepancy are discussed. The comparison of broadband color indices gives information concerning the surface gravities. The effects of limb darkening and possible variation of photospheric radius with wavelength on predicted broad-band model colors, and additional implications of comparison between theory and observations, are discussed.

Affiliated with

Also associated with

No associations

Rating

Red giant model atmospheres. IV - Colors of K and M giant models 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 Red giant model atmospheres. IV - Colors of K and M giant models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Red giant model atmospheres. IV - Colors of K and M giant models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1675171