Spectroscopic analysis of DA white dwarfs with 3D model atmospheres

Spectroscopic analysis of DA white dwarfs with 3D model atmospheres

We present the first grid of mean three-dimensional (3D) spectra for pure-hydrogen (DA) white dwarfs based on 3D model atmospheres. We use CO5BOLD radiation-hydrodynamics 3D simulations instead of the mixing-length theory for the treatment of convection. The simulations cover the effective temperatu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Astronomy and astrophysics (Berlin) 2013-11, Vol.559, p.1-23
Hauptverfasser: Tremblay, P.-E., Ludwig, H.-G., Steffen, M., Freytag, B.
Format: Artikel
Sprache:eng
Schlagworte:
Atmospherics
Computer simulation
convection
hydrodynamics
line: profiles
Mathematical models
Spectra
Spectroscopic analysis
stars: atmospheres
Stellar atmospheres
Three dimensional
White dwarf stars
white dwarfs
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We present the first grid of mean three-dimensional (3D) spectra for pure-hydrogen (DA) white dwarfs based on 3D model atmospheres. We use CO5BOLD radiation-hydrodynamics 3D simulations instead of the mixing-length theory for the treatment of convection. The simulations cover the effective temperature range of 6000 
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201322318