The Spectroscopic Database of the Digitized First Byurakan Survey

Details The Spectroscopic Database of the Digitized First Byurakan Survey The Spectroscopic Database of the Digitized First Byurakan Survey

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008asvo.proc...29m&link_type=abstract

Astronomical Spectroscopy and Virtual Observatory, Proceedings of the EURO-VO Workshop, held at the European Space Astronomy Cen

Astronomy and Astrophysics

Astronomy

Scientific paper

The First Byurakan Survey (FBS), also known as Markarian Survey, is the largest low dispersion spectroscopic survey of the sky covering 17,000 square degrees at Galactic latitudes |b|>15. The FBS led to the discovery of 1500 UV-excess (Markarian) galaxies and it was also used to search for UV-excess stellar objects (QSOs, WDs, CVs, etc.), late-type stars, and for the identification of IRAS sources. The Digitised First Byurakan Survey (DFBS) provides the astronomical community with a digitised version of the FBS images and the extracted spectra for the objects present in the plates. Nearly 2000 plates have been scanned and stored and programs were developed to compute the astrometric solution, extract the spectra, and apply wavelength and photometric calibration to the objects. The DFBS database and catalogue 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 visualisation and analysis tools. New scientific projects as well as existing surveys will benefit by the digitised images and the ready-to-use extracted spectra which will allow an efficient computer-based analysis of the dataset.

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