BT-NextGen (AGSS2009)

The NextGen Model grid of theoretical spectra; Gas phase only, valid for Teff > 2700 K. Updated opacities. Wavelengths have been converted to air wavelengths.理论光谱的NextGen模型网格；仅适用于气相，有效温度（Teff）大于2700 K。采用更新后的不透明度。所有波长均已转换为空气波长。