publication . Conference object . Preprint . 2008

Modeling Stellar Atmospheres with a Spherically Symmetric Version of the ATLAS Code: Testing the Code by Comparisons to Interferometric Observations and PHOENIX models

Hilding R. Neilson; John B. Lester; Eric Stempels;
Open Access
  • Published: 28 Aug 2008
  • Publisher: AIP
Abstract
One of the current opportunities for stellar atmospheric modeling is the interpretation of optical interferometric data of stars. Starting from the robust, open source ATLAS atmospheric code (Kurucz, 1979), we have developed a spherically symmetric code, SATLAS, as a new option for modeling stellar atmospheres of low gravity stars. The SATLAS code is tested against both interferometric observations of M giants by Wittkowski and collaborators, and spherically symmetric M giant NextGen models from the PHOENIX code. The SATLAS models predict interferometric visibilities that agree with the observed visibilities and with predicted visibilities, and the SATLAS atmosp...
Subjects
arXiv: Astrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: Atlas (anatomy), medicine.anatomical_structure, medicine, Physics, Phoenix, biology.organism_classification, biology, Astrophysics, Interferometry, Stellar atmosphere, Atmosphere, Low Gravity, Astronomy, Atmospheric model, Stars
Related Organizations

1. R. L. Kurucz, SAO Special Report 309 (1970).

2. M. Wittkowski, J. P. Aufdenberg, and P. Kervella, A&A 413, 711-723 (2004), arXiv:astro-ph/0310128.

3. M. Wittkowski, C. A. Hummel, J. P. Aufdenberg, and V. Roccatagliata, A&A 460, 843-853 (2006), arXiv:astro-ph/0610149.

4. M. Wittkowski, J. P. Aufdenberg, T. Driebe, V. Roccatagliata, T. Szeifert, and B. Wolff, A&A 460, 855-864 (2006), arXiv:astro-ph/0610150.

5. J. Lester, and H. Neilson (2008), A&A, Submitted.

6. P. H. Hauschildt, F. Allard, J. Ferguson, E. Baron, and D. R. Alexander, ApJ 525, 871-880 (1999), arXiv:astro-ph/9907194.

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publication . Conference object . Preprint . 2008

Modeling Stellar Atmospheres with a Spherically Symmetric Version of the ATLAS Code: Testing the Code by Comparisons to Interferometric Observations and PHOENIX models

Hilding R. Neilson; John B. Lester; Eric Stempels;