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ASPID: a Large Source of Spectral Data
Chilingarian, I. V.1,2,*; Afanasiev, V. L.3, Afanasieva, E. L.3,**, Belinski, A. A.1
1 - Sternberg
Astronomical Institute of the Moscow State University, Russia
de Recherche Astronomique de Lyon - Observatoire de Lyon, France
- Special Astrophysical Observatory of the Russian Academy of Sciences, Russia
* - Visiting investigator
** - Invited specialist
2 - Centre
3
General presentation
ASPID stands for "Archive of Spectral, Photometric and Interferometic data".
ASPID is a data archive containing results of observations conducted by the
Laboratory of Spectroscopy and Photometry of Extragalactic Objects (LSPEO
SAO RAS) on the 6-m telescope since 1990. The data were obtained with
integral field spectrograph (MPFS), multi object spectrograph (MOFS), long-slit
spectrograph (UAGS), Fabry-Perot interferometer (till 2000), and SCORPIO
universal spectrograph (since 2000). The description of the instruments can be
found on the LSPEO homepage [1].
Figure 1. An example of the MPFS data. The velocity field of the stellar component of the diffuse elliptical galaxy IC3653
(left) and several examples of the spectra in different regions of the galaxy. Signal to noise ratio is shown near each
spectrum. The data were obtained in the frame of the proposal “Diffuse elliptical galaxies in the Virgo cluster” (PI: P.
Prugniel) in May, 2004.
ASPID is a project developed and maintained in the LSPEO. The first release
was done in 1997. At present, the content of the archive represents about 30%
of the total amount of the observations obtained with the 6-m telescope in the
last 14 years. All the data obtained by the means of 3D spectroscopy with the
6-m telescope is included.
Credits
The WEB based part of ASPID is
powered by PLEINPOT software package
[2] and is supported by MIGALE project
[3].
These data have a great scientific value for the astronomical community.
Presently, ASPID provides the largest collection of integral field spectroscopic
data in the world.
Spatial indexing capabilities provided by
pgSphere [4] extension for PostgreSQL
are used to ensure high-performance
search in celestial coordinates.
Data cubes for more than 200 nearby galaxies and AGNs were obtained with
the MPFS field spectrograph in the frames of several tens of observing
programs, including long-term projects on the studies of the nearby AGNs and
starburst galaxies and early-type galaxies as well. For obtaining the field
spectroscopy for faint extended objects it is possible to use different gratings
providing low spectral resolution of R=300..700 in a wavelength range
between 3000 Å and 1 m. For detailed studies of the kinematics and stellar
populations of nearby galaxies the 1200 gr/mm gratings may be used, with
R=1500..2500. The example of MPFS data for the IC3653, the diffuse elliptical
galaxy in Virgo, is shown in Fig.1 (talk by P. Prugniel, this conference)
Beside MPFS data, there are about 100 Fabry-Perot (IFP) data cubes
obtained in the H and [OIII] emission lines. They allow detailed study of the
gas kinematics of spiral and irregular galaxies, or active galaxies in a wide
field of view of 5'x5'. The example of the results obtained using the IFP data
(program entitled "Kinematics of Seyfert galaxies", PI: S.Ciroi) is shown in
Fig.2.
The WEB-interface prototype developed
for the database of MASTER project [5] is
used.
Extensible multi-language support is
based on the technologies developed for
the Russian Astronomical Network project
[6].
Figure 2. An example of the IFP data. The monochromatic image
and velocity field of the gaseous component of the Mkn1157
Seyfert 2 galaxy obtained in H line. The data were obtained in the
frame of the proposal “Kinematics of Seyfert galaxies” (PI: S. Ciroi)
in Sep 2002. Credits of the image: A.V. Moiseev (SAO RAS)
Observational Logs
FITS Header
Statistics
Some average characteristics of the database
(09/2004) are presented hereafter.
• Total data volume: 38 Gb (64 CD-ROMs)
• Total number of frames: 47300
• Number of frames indexed: 46638
• Number of science frames: 21661
• Number of proposal's authors: 84
The functionalities
Presently ASPID provides:
• multiparametric search in the data archive
• two-language interface (English and Russian)
• printer-friendly output
• Number of unique proposals: 257
Acknowledgements
Authors appreciate the JENAM-2004 organizing committee for the financial support provided for attending
the conference, LSPEO staff for useful advices and comments, CNRS for financial support of staying one of
us in France, Philippe Prugniel and Francois Simien (CRAL Observatoire de Lyon) for useful tips concerning
this presentation
• quick look to the science and calibration frames
• access to the metadata (FITS headers)
• access to the logs of observations
• WEB interface for simple database management operations (restricted access)
• the download of the data opened to the public is provided through the General
Observational Archive of SAO RAS [7].
References
1. http://www.sao.ru/hq/lsfvo/
2. http://leda.univ-lyon1.fr/
3. http://migale.obspm.fr/
4. Chilingarian, I.; Bartunov, O.; Richter, J.; Sigaev, T.
ASP Conference Proceedings, Vol. 314, p.225
5. http://observ.pereplet.ru/
6. http://www.astronet.ru/
7. http://www.sao.ru/oasis/cgi-bin/fetch