Spec. Intensities
Download
All files are available at:
- https://ftp.gwdg.de/pub/misc/phoenix/SpecIntFITS/ (HTTPS)
- ftp://ftp.gwdg.de/pub/misc/phoenix/SpecIntFITS/ (FTP)
The parameter range of the grid is
| Parameter | Range | Step size |
|---|---|---|
| Teff [K] | 2300 - 7000 | 100 |
| 7000 - 12000 | 200 | |
| log(g) | 0.0 - 6.0 | 0.5 |
| [Fe/H] | -4.0 - -2.0 | 1.0 |
| -2.0 - +1.0 | 0.5 |
Each spectrum is a single file in the directory of its metallicity, e.g.
PHOENIX-ACES-AGSS-COND-SPECINT-2011/Z-0.5/lte05800-4.50-0.5.PHOENIX-ACES-AGSS-COND-SPECINT-2011.fits
for Teff=5800 K, log(g)=4.5, [Fe/H]=-0.5.
The same grid binned to 50Å is available at https://ftp.gwdg.de/pub/misc/phoenix/SpecInt50FITS/ (HTTPS) and ftp://ftp.gwdg.de/pub/misc/phoenix/SpecInt50FITS/ (FTP).
Specific intensity spectra
Specific intensity spectra, which are also known as ‘full radiation field’, are the spectra for several values for the angle mu.
FITS files
The spectra are stored in a 2D FITS image, where one axis is the wavelength (as defined in the FITS header) and the other one is mu, which is given in a FITS extension called “MU”.
The header keywords are essentially the same as for the high resolution spectra, as can be found here.