Version 2.0!

On the FTP server there is a new directory “v2.0” containing the high resolution spectra for version 2.0 of the spectral library. The changes are as follows:

  • extended towards higher temperatures (15,000 K)
  • changed the values at which [alpha/Fe] is sampled
  • extended the use of special line profiles, e.g. for Ca, down to 4000 K
  • filled holes in the grid, especially the previously missing models at 5000 K
  • added some models with logg=6.5 and logg=-0.5

The physical assumptions for the new spectra are the same as in version 1.0.

The other data products as the convolved grids, the specific intensities and so on will follow within the next couple of weeks.

Please continue citing the Husser et al. (2013) paper as before.


Server problems

Unfortunately we’re experiencing massive server problems at the moment due to insufficient memory. We’re in the process of upgrading it and hope that it will work again soonish. We apologize for any inconvenience.


We’ve now also published the atmospheric structures for all our models. They are available for download as FITS binary tables with the columns tau, temp, pgas and rho.

Specific Intensity Spectra and Limb Darkening

We just made specific intensity spectra (a.k.a. the ‘full radiation field’) for all models in the base grid (i.e. [alpha/Fe]=0) available for download. They span the wavelength range from 500 to 26000 Angstrom with a sampling of 1 Angstrom. We provide the spectra for 78 different values for the angle mu.

Furthermore we’ve convolved those specific intensity spectra with commonly used filters to be used for limb darkening applications. The results are also available for download. In case you need different filters, please send us their response curves.

Wrong reference for STELIB

Unfortunately there has been an error in the published paper. The reference that we give for the STELIB is obviously wrong, the correct one is this:

STELIB: A library of stellar spectra at R ~ 2000

Le Borgne, J.-F.; Bruzual, G.; Pelló, R.; Lançon, A.; Rocca-Volmerange, B.; 
 Sanahuja, B.; Schaerer, D.; Soubiran, C.; Vílchez-Gómez, R.,
 2003, A&A 402, 433

ADS: 2003A&A...402..433L

The astro-ph version has already been corrected, but it was too late for the A&A publication…


First update

We have just uploaded an update to the server that consists of two parts:

  1. The missing interpolated spectra, 325 in total. A full list can be found here. All these spectra contain a FITS keyword “INTERPOL” with the value “T” for easy identification.
  2. Since the start of this website, 1365 additional spectra have been calculated successfully that we also uploaded now. See this list for details.

The new spectra are available individually in high resolution and have been added to the archives with the medium resolution spectra.