Optical identification of IRAS point sources on the basis of low-dispersion FBS spectra. II.

Details Optical identification of IRAS point sources on the basis of low-dispersion FBS spectra. II. Optical identification of IRAS point sources on the basis of low-dispersion FBS spectra. II.

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ap.....40..379m&link_type=abstract

Astrophysics, Volume 40, Issue 4, pp.379-389

Astronomy and Astrophysics

Astrophysics

Infrared Sources: Finding Charts, Infrared Sources: Optical Identifications, Infrared Sources: Extragalactic, Infrared Sources: Quasars, Infrared Sources: Interacting Galaxies, Infrared Sources: Seyfert Galaxies

Scientific paper

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.

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