Theory and modeling of stellar atmospheres

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

I will briefly outline basic concepts of the stellar atmospheres theory. After summarizing basic structural equations describing a stellar atmospheres, an emphasis is given to describing efficient numerical methods developed to deal with the stellar atmosphere problem, namely the method of complete linearization ant its recent variants, and the whole class of methods known by name Accelerated Lambda Iteration. In the next part of the lectures I will briefly summarize existing computer codes, with an emphasis on our code TLUSTY, and list some of the most useful grids of model atmospheres that are publicly available. Next, I will show how the model atmospheres and synthetic spectra are used in quantitative stellar spectroscopy in order to determine basic stellar parameters and chemical abundances. Finally, I will briefly describe an application of model atmosphere theory and models to related objects, such as accretion disks around various accretors, and atmospheres of substellar-mass objects - extrasolar giant planets and brown dwarfs.

Original languageEnglish (US)
Title of host publicationGraduate School in Astronomy - XIV Special Courses at the National Observatory of Rio de Janeiro, XIV CCE
Pages73-115
Number of pages43
DOIs
StatePublished - 2010
Event14th Special Courses at the National Observatory of Rio de Janeiro, XIV CCE - Rio de Janeiro, Brazil
Duration: Nov 16 2009Nov 19 2009

Publication series

NameAIP Conference Proceedings
Volume1268
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other14th Special Courses at the National Observatory of Rio de Janeiro, XIV CCE
CountryBrazil
CityRio de Janeiro
Period11/16/0911/19/09

Keywords

  • Accretion disks
  • Methods: Numerical
  • Stellar atmospheres

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Hubeny, I. (2010). Theory and modeling of stellar atmospheres. In Graduate School in Astronomy - XIV Special Courses at the National Observatory of Rio de Janeiro, XIV CCE (pp. 73-115). (AIP Conference Proceedings; Vol. 1268). https://doi.org/10.1063/1.3483880