Concentration of bright quasars in the Sculptor Group

Details Concentration of bright quasars in the Sculptor Group Concentration of bright quasars in the Sculptor Group

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.226p...5a&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 226, May 15, 1987, p. 5P-8P.

Astronomy and Astrophysics

Astronomy

3

Brightness, Density Measurement, Quasars, Ultraviolet Astronomy, Astrometry, Prisms, Space Density

Scientific paper

Recent objective prism searches for quasars confirm the grouping of bright quasars in the direction of the Sculptor Group of galaxies. The density of such quasars with V ≤ 17.5 mag over average sky regions is ⪉0.06 deg-2. The concentration in the NGC 55, NGC 300 and NGC 253 areas is 0.65 deg-2. Around NGC 253 the density is over 20 times the average and has a chance of <5×10-4 of being accidental.

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