Computer Science
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003iauga..25e...1m&link_type=abstract
IAU GA XXV Abstract Book
Computer Science
Iras Sources, Infrared Galaxies
Scientific paper
A program of optical identifications of all IRAS sources in a large area (|b|>15° and ℓ>+61°) on the basis of the First Byurakan Survey (FBS) low-dispersion spectra is aimed at revealing all FIR flux limited (0.6 Jy at 60μm, and 1.0 Jy at 100μm, i. e. the IRAS PSC completeness limit) objects and study its contents. 1577 previously unidentified IRAS point sources have been optically identified in an area with 1487 deg2, of which 1178 are galaxies, and 399 are stars. The identifications program brought to 2 samples of objects: BIS (Byurakan-IRAS Stars), and BIG (Byurakan-IRAS Galaxies). A redshift survey for BIG objects have been undertaken with 3 telescopes (Byurakan 2.6m, Russian SAO 6m, and Haute-Provence 1.93m): 213 galaxies have been observed so far, and their redshifts and activity types are available. The BIG objects contain Seyferts, LINERs, composite spectrum AGNs, high-luminosity IR galaxies, groups of galaxies, interacting and merging galaxies, as well as obscured IRAS galaxies. The redshifts are in the range 0.008-0.173, and the obtained FIR is in the range 3x10^9
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