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Surface convection and red giants radii measurements
L. Piau, P. Kervella, S. Dib +1
The phenomenological models of convection use characteristic length scales they do not determine but that are chosen to fit solar or stellar observations. We investigate if changes…
Studying the Physical Diversity of Late-M Dwarfs with Dynamical Masses
Trent Dupuy, Michael Liu, Brendan Bowler +4
We present a systematic study of the physical properties of late-M dwarfs based on high-quality dynamical mass measurements and near-infrared (NIR) spectra. We use astrometry from…
A 3D radiative transfer framework: VII. Arbitrary velocity fields in the Eulerian frame
A. M. Seelmann, P. H. Hauschildt, E. Baron
A solution of the radiative-transfer problem in 3D with arbitrary velocity fields in the Eulerian frame is presented. The method is implemented in our 3D radiative transfer framewo…
Modeling the near-UV band of GK stars, Paper I: LTE models
C. Ian Short, Peter Hauschildt
We present a grid of LTE atmospheric models and synthetic spectra that cover the spectral class range from mid-G to mid-K, and luminosity classes from V to III, that is dense in Te…
Hydrogen Recombination with Multilevel atoms
Soma De, E. Baron, Peter H. Hauschildt
Hydrogen recombination is one of the most important atomic processes in many astrophysical objects such as Type II supernova (SN~II) atmospheres, the high redshift universe during…