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Vienna New Model
Grid of Stellar Atmospheres
The NEMO grid is several new sets of grids of model stellar atmospheres computed
with modified versions of the
ATLAS9
code. Each individual set consists of several
grids of models with different metallicities. The individual sets differ from each
other and from previous ones essentially in the physics used for the treatment of
the convective energy transport, in the higher vertical resolution of the
atmospheres and in a finer grid in the (Teff,logg) plane.
These improvements enable the computation of derivatives of color indices accurate
enough for pulsation mode identification. In addition, the chosen vertical resolution
is necessary and sufficient for the purpose of stellar interior modelling.
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| April 2010: |
Extension of the grid to vmicro = 8 km/s.
That are 30846 new models, fluxes and sets of colors.
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| Oktober 2008: |
Synthetic filter photometry for all new model fluxes. Recalculated also all
existing color tables. Added the SDSS ugriz and u'g'r'i'z' filter systems.
Not only the color indizes but also the single filter colors have been
normalized.
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| July 2008: |
Additional data for the computed models can also be downloaded
via the NEMO online search. These files, formerly know as 'the out files',
contain now more information as those from the NEMO 2003 grid and
have therefor a slightly different format; naturally.
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| May 2008: |
Model fluxes for the new models are calculated and available for download.
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| February 2008: |
The Extension of the model grid to Teff = 20000K is public. The additional
models count 54573. They can be obtained via the
NEMO online search .
The calculation of the corresponding model fluxes is in progress. We will
create a new DVD iso-image when the fluxes and colors are finished.
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Should the use of these model atmosphere files result in a publication,
please include references to:
- Ch. Stütz and E. Paunzen, The NEMO webpage,
http://www.univie.ac.at/nemo/
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Heiter U., Kupka F., van't Veer-Menneret C., Barban C., Weiss W.W., Goupil M.-J.,
Schmidt W., Katz D., Garrido R., 2002, A&A 392, 619-636
and include either as a footnote to the title or in the acknowledgements:
This research has made use of the model atmosphere grid NeMo, provided by the
Department of Astronomy of the University of Vienna, Austria
(http://www.univie.ac.at/nemo/).
NeMo was funded by the Austrian Science Fonds.
Please, inform us about your publication.
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