Second Byurakan spectral sky survey. I - Results for region centered on alpha = 11 H 30 min, delta = +59 deg 00 arcmin

Details Second Byurakan spectral sky survey. I - Results for region centered on alpha = 11 H 30 min, delta = +59 deg 00 arcmin Second Byurakan spectral sky survey. I - Results for region centered on alpha = 11 H 30 min, delta = +59 deg 00 arcmin

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983afz....19..639m&link_type=abstract

(Astrofizika, vol. 19, Oct.-Dec. 1983, p. 639-654) Astrophysics (ISSN 0571-7132), vol. 19, no. 4, April 1984, p. 354-368. Transl

Astronomy and Astrophysics

Astronomy

63

Astronomical Spectroscopy, Blue Stars, Galactic Structure, Quasars, Seyfert Galaxies, Sky Surveys (Astronomy), Astronomical Catalogs, Astronomical Observatories, Schmidt Telescopes, Ultraviolet Astronomy

Scientific paper

The results of a survey at 500 and 650 nm of a 4-deg x 4-deg region, performed using 1.5, 3, and 4-deg prisms on the Schmidt telescope at Biurakan Astrophysical Observatory are reported. The exposure times are 30-60 min with the 1.5-deg prism and up to 3 h with the 3 and 4-deg prisms; reciprocal dispersions at H-gamma are 1800, 900, and 280 A/mm, respectively; and limiting magnitude is 18.5-19.5 mag. Photographs, data tables, and detailed characterizations are provided for 107 objects, including 11 QSO candidates, 7 Seyfert galaxies, 11 BSOs, 29 galaxies with UV continuum, and 56 emission galaxies without significant UV emission. The surface densities of QSOs and Seyfert galaxies and of emission galaxies are 1.5 and over 5 per sq deg, respectively.

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