Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confe..78m&link_type=abstract
"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 78-78"
Astronomy and Astrophysics
Astronomy
Scientific paper
At present the development of astronomy is strongly dependent on the large surveys and databases. The multiwavelength data complement each other and allow new discoveries. Spectroscopic databases are unique among all others. Very few such databases are available: The Digitized Hamburg Quasar Survey (HQS), the Digitized First Byurakan Survey (DFBS), and the Sloan Digital Sky Survey (SDSS), altogether covering about 25000 sq. degrees at high Galactic latitudes. To realize the advantages of the spectroscopic databases, we have carried out several tests for search for new objects and optical identifications of X-ray, IR, and radio sources based on the DFBS. DFBS provides the astronomical community with a digitized version of the FBS images and the extracted spectra for the objects present in the plates. The DFBS database and catalog has been assembled containing data for 20,000,000 objects. A classification scheme for the DFBS spectra is being developed. A work on making the DFBS available through the Virtual Observatory standards and access to spectroscopic data has been started. From the point of view of VO, the DFBS is a new database needing both image and spectra access tools and an interchange between these two standards. Algorithms, tools, and facilities needed for efficient use of the DFBS are discussed, in particular the spectral visualization and analysis tools. New scientific projects as well as existing surveys will benefit by the digitized images and the ready-to-use extracted spectra which will allow an efficient computer-based analysis of the dataset.
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