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The Second Byurakan Survey

Published online by Cambridge University Press:  26 July 2016

J. Stepanian
J. Stepanian*
Affiliation:
Special Astrophysical Observatory, Nizhnij Arkhyz, Karachaevo-Cherkessk Republic, 357 147 Russia

Abstract

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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.

Type
Part Fifteen: Properties and Clustering of Objects at Large Redshifts
Information
Symposium - International Astronomical Union , Volume 161: Astronomy from Wide-Field Imaging , 1994 , pp. 731 - 736
Copyright
Copyright © Kluwer 1994 

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