Digitized First Byurakan Survey (DFBS) Spectra Query Service
Short Name:
DFBS SSAP
Date:
27 Dec 2024 08:31:13
Publisher:
The GAVO DC team
Description:
The First Byurakan Survey (FBS) is the largest and the first systematic
objective prism survey of the extragalactic sky. It covers 17,000 sq.deg.
in the Northern sky together with a high galactic latitudes region in the
Southern sky. The FBS has been carried out by B.E. Markarian, V.A.
Lipovetski and J.A. Stepanian in 1965-1980 with the Byurakan Observatory
102/132/213 cm (40"/52"/84") Schmidt telescope using 1.5 deg. prism. Each
FBS plate contains low-dispersion spectra of some 15,000-20,000 objects;
the whole survey consists of about 20,000,000 objects.
TheoSSA provides spectral energy distributions based on model
atmosphere calculations. Currently, we serve results obtained using
the Tübingen NLTE Model Atmosphere Package (TMAP) for hot compact
stars.
TheoSSA provides spectral energy distributions based on model
atmosphere calculations. Currently, we serve results obtained using
the Tübingen NLTE Model Atmosphere Package (TMAP) for hot compact
stars.
TMAW -- Tübingen Model Atmosphere Package WWW Interface
Short Name:
TMAW
Date:
27 Dec 2024 08:31:03
Publisher:
The GAVO DC team
Description:
The Tübingen NLTE Model-Atmosphere Package (`TMAP
<http://astro.uni-tuebingen.de/%7ETMAP/TMAP.html>`_) is a tool to calculate
stellar atmospheres in spherical or plane-parallel geometry in hydrostatic
and radiative equilibrium allowing departures from local thermodynamic
equilibrium (LTE) for the population of atomic levels./TMAP/ is based on
the so-called Accelerated Lambda Iteration (ALI) method and is able to
account for line blanketing by metals. All elements from hydrogen to nickel
may be included in the calculation with model atoms which are tailored for
the aims of the user.
