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.
VO-compliant publication of Schmidt survey ESO-R of the southern sky digitized with the MAMA microdensitometer at the Observatoire de Paris Image Analysis Centre (CAI).
*** EUV-SYN *** Synchronous synoptic maps of the corona in the
extreme-UV (EUV), built from series of SoHO/EIT observations, in each
of the 4 wavelength bands of the instrument.
Synchronous synoptic maps are maps of the EUV radiance in different
wavelength bands on the full solar sphere, in heliographic
(Carrington) longitude and latitude, where data are taken as close as
possible to a reference time. They capture the state of the corona at
any given reference time by including data taken as close as possible
to this time.
EUV-SYN is available as part of the generic MEDOC interface which is
currently located at https://idoc-medoc.ias.u-psud.fr/. These
interfaces are based on the CNES SiTools2 framework. EUV-SYN is also
available from IDL and Python scripts, using a specialization of the
generic SiTools2 IDL and Python clients developed by MEDOC.
"The data consists in topographic maps of synthetic 3D bodies
generated by a 3 parameters statistical model : the fractionally
integrated flux (FiF) (Lavallee, D., Lovejoy, S., Schertzer, D.,
Ladoy, P. (1993). Nonlinear variability and landscape topography:
analysis and simulation) adapted for spherical coordinates and
topography (Landais, F., Schmidt, F., and Lovejoy, S, (2018)
Topography of exoplanets, MNRAS). The 3 parameters are the following :
H: degree of smoothness; C1: degree of intermittency; alpha: degree of
multifractality; The service contains topographic maps (in Fits
format) and texture maps (in png format)."
VO-compliant publication of the properties of the 3838 galaxies that were monitored for SNe events, including newly determined morphologies and their DENIS and POSS-II/UKST I, 2MASS and DENIS J and Ks and 2MASS H magnitudes.
The principal research topics of the GEPI (Galaxy - Star - Physics - Instrumentation) Laboratory are the formation and evolution of stars in our Galaxy as well as in numerous other galaxies, which constitute the luminous matter (baryonic matter) component of the Universe. This research calls upon many disciplines, from chemistry to physics, from instrumentation to data-processing engineering, and from project management to financial management within an international framework.