Stellar Model Atmospheres

ATLAS and Kurucz Atmospheres

ATLAS-APOGEE
Calculated using the ATLAS9 code originally for use by APOGEE
  • 3500 < T_{eff} < 30000
  • 0.0 < log(g) < 5.0
  • -5.0 < [Fe/H] < +1.5
  • -1.5 < [alpha/M] < +1.0
  • -1.5 < [carbon/M] < +1.0
(citation: Meszaros et al. 2012)

Kurucz's Grids
A variety of archived model atmosphere grids. Castelli (citation: Castelli & Kurucz 2003) is the newest model group of these.
  • 3500 < T_{eff} < 50000
  • 0.0 < log(g) < 5.0
  • -4.0 < [Fe/H] < +0.5
  • +0.0 < [alpha/M] < +0.4

MARCS Atmospheres

MARCS Homepage
  • 2500 < T_{eff} < 8000
  • -1.0 < log(g) < 5.0
  • -5.0 < [Fe/H] < +1.0
  • +0.0 < [alpha/M] < +0.4
  • 0.09 < C/O < 5.0
  • Numerous other parameters are also varied
(citation: Gustafsson et al. 2008)

Phoenix Atmospheres

Goettingen Spectral Library
  • 2300 < T_{eff} < 25000
  • 0.0 < log(g) < 6.0
  • -4.0 < [Fe/H] < +1.0
  • -0.2 < [alpha/M] < +1.2
(citation: Husser et al. 2013)

France Allard
Multiple PHOENIX grids with varying underlying physics. BT-Settl are the most up-to-date models, with the paper detailing the differences between them.
  • 1500 < T_{eff} < 70000
  • 0.0 < log(g) < 5.5
  • -2.5 < [Fe/H] < +0.5
  • +0.0 < [alpha/M] < +0.4
(citation: Allard 2016)