On the basis of the Second Byurakan Survey (SBS), we have produced a new
complete sample of bright QSOs.
The observations were obtained using the 1.5, 3 and 4 degree objective prisms
with the 40–52 inch Schmidt telescope at the Byurakan Observatory. The total sky
coverage area of SBS is 1000 square degrees from R.A. 07h40m–17h15m and Dec.
+49–+61.
In all, in SBS about 3000–1600 stellar objects have been selected, and about
1400 galaxies down to a limiting magnitude B ∼ 19.5.
290 QSO and 67 Sy galaxies are spectroscopically confirmed.
The estimate of surface density of SBS QSOs in the magnitude range 15.5
< B < 17.2 and redshift distribution of SBS QSOs and Sy galaxies are
given.
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