Due to some maintenance performed at our IT department, the FTP server (and therefore all the data) is currently not available. We’re trying to get this fixed as soon as possible. Sorry for the inconvenience.
Update: It’s working again.
Author Archives: husser
Atmospheres for v2.0
The atmosphere files have just been uploaded to the FTP for version 2.0 of the grid and can be found here:
ftp://phoenix.astro.physik.uni-goettingen.de/v2.0/AtmosFITS/
There is also a new column “pe” for the electron partial pressure in the files.
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.
Update on server problems
We upgraded the memory on the server and hopefully the problems are now gone.
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.
Wrong FITS headers
Unfortunately it seems that some of the FITS headers in the files are wrong. All the units are given in [cgs], so:
- The mass (PHXMASS) is given in grams.
- The luminosity (PHXLUM) is given in erg/s.
Sorry for the inconvenience.
Atmospheres
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.
FTP access
After some considerations we’ve decided to allow FTP access for the download of the spectra. From now on, both the high and the medium resolution spectra are available via FTP at:
ftp://phoenix.astro.physik.uni-goettingen.de/
If there are any problems, please let us know.
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…