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ON the Cross-Correlation of Galaxies with UVX Objects and QSOS

Published online by Cambridge University Press:  12 April 2016

B.J. Boyle ,
T. Shanks  and
R. Fong
B.J. Boyle
Affiliation:
University of Durham, South Road, Durham
T. Shanks
Affiliation:
University of Durham, South Road, Durham
R. Fong
Affiliation:
University of Durham, South Road, Durham

Abstract

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Recent measurement of UK Schmidt plates have yielded interesting results on the cross-correlation of galaxies with QSOs and ultra-violet excess (UVX) objects. We find that in all Schmidt fields so far analysed there appears to be a significant anti-correlation (at angular scales less than 5') between the positions of galaxies and QSOs and between the positions of galaxies and UVX objects. This anti-correlation appears to be restricted to those galaxies that are found in clusters. These observations can very naturally be explained using a model in which dust within clusters of galaxies obscures the QSOs lying at cosmological distances behind them. This hypothesis may be further corroborated by tentative evidence that the UVX objects and the QSOs appear to be reddened close to clusters of galaxies.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 78: Astronomy with Schmidt-type telescopes , 1984 , pp. 467 - 472
Copyright
Copyright © Reidel 1984

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