Optical identification of iras point sources on the basis of low-dispersion FBS spectra. II |
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| Authors: | A M Mickaelian K S Gigoyan D Russeil |
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| Institution: | (1) Byurakan Astrophysical Observatory, Armenia;(2) Marseille Astrophysical Observatory, France |
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| Abstract: | The second portion of optically identified point sources from the IRAS Point Source Catalog contains 104 objects. The identifications
were made on the basis of the Digitized Sky Survey (DSS), the First Byurakan Survey (FBS), blue and red maps of the Palomar
Survey (POSS), and infrared fluxes at wavelengths of 12, 25, 60, and 100 fim in the region of +61 ° ≤ δ ≤ +65°and 50h30m ≤ α ≤ 11h15m with an area of 157 sq. deg. Of the 114 sources in this region, 10 could not be identified because of the absence of the
corresponding optical counterparts with the given coordinates. For the identified objects we determined their optical coordinates,
their departure from the IR coordinates, the stellar V magnitudes, the color indices CI, and the preliminary types. The objects
have optical magnitudes in the range of 8n–21m. Of the 104 objects, 46 turned out to be stars of spectral types K and M, 1 is a planetary nebula, 3 are QSO candidates,
and 54 are galaxies. In the present work we give a list of the 58 nonstellar objects. The identified galaxies include Seyfert
candidates, interacting pairs, galaxies with companions and superassociations, etc. Finder charts for these objects from the
DSS are given.
Translated from Astrofizika, Vol. 40, No. 4, pp. 581–593, October-December, 1997. |
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