Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs

Details Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.8003r&link_type=abstract

American Astronomical Society, AAS Meeting #211, #80.03; Bulletin of the American Astronomical Society, Vol. 39, p.871

Astronomy and Astrophysics

Astronomy

Scientific paper

The effects of photospheric granulation on absorption lines in the spectra of K-dwarfs are resolved using ultra high resolution observations made with the 2dcoude spectrograph at McDonald Observatory, combined with data from the Hobby-Eberly Telescope. The line asymmetries and wavelength shifts are then compared with theoretical line profiles calculated using a state-of-the-art three-dimensional radiative-hydrodynamical model atmosphere for a star with parameters: Teff=4830 K, log g=4.50, and [Fe/H]=0. We find remarkable agreement between the predictions of the model and our observations. The impact of 3D effects on classical 1D-LTE abundance determinations in K-dwarfs is explored.

Affiliated with

Also associated with

No associations

Rating

Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs 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 Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line Formation in Three-Dimensional Model Atmospheres of K-Dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1478634