Statistics – Computation
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.231..897b&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 231, April 15, 1988, p. 897-921. Research supported by
Statistics
Computation
69
Cosmic Dust, Cosmology, Galactic Clusters, Quasars, Red Shift, Ultraviolet Astronomy, Astronomical Catalogs, Computational Astrophysics, Correlation, Statistical Analysis
Scientific paper
The proposed correlations between the positions of high-redshift QSOs and low-redshift galaxies are investigated using unbiased catalogues of UVX objects and galaxies selected from machine measurements of photographic plates. In no case is evidence found for an excess of high-redshift QSOs around low-redshift galaxies. Indeed, a significant 30 per cent deficiency of UVX objects at separations of less than 4 arcmin from galaxies lying in clusters is found. This anticorrelation is most simply explained by a model in which dust situated in foreground clusters of galaxies obscures the QSOs lying behind them, consistent with the cosmological interpretation of QSO redshifts. An absorption of A(B) = 0.2 mag is sufficient to produce the observed effect. The amount of dust required to give this level of absorption is small. This dust can survive significant sputtering by hot gas in clusters of galaxies and is well within limits placed on its existence by intergalactic reddening results.
Boyle Brian J.
Fong Richard
Shanks Tom
No associations
LandOfFree
On the correlation of UVX QSOs with galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the correlation of UVX QSOs with galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the correlation of UVX QSOs with galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-849912