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Constraints on Very Faint High-z Quasars

Published online by Cambridge University Press:  01 August 2006

Mark Dijkstra
Mark Dijkstra*
Affiliation:
The School of Physics, The University of Melbourne, Parkville, VIC 3066, Australia email: dijkstra@physics.unimelb.edu.au
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Abstract

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I discuss the constraints that can be derived on the abundance of high redshift (z>6) (mini)quasars from the unresolved soft X-Ray background. Furthermore, I will show how existing Lyα surveys can be used to probe the very faint MB≳-21 mag (i.e., ≳7–8 mag fainter than the SDSS quasars) end of the z≥,4.5 quasar luminosity function.

Keywords

galaxies: high-redshiftX-rays: diffuse backgroundcosmology: theoryquasars: emission lines
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 261
Copyright
Copyright © International Astronomical Union 2007

References

Dijkstra, M., Haiman, Z., & Loeb, A. 2004, ApJ, 613, 646CrossRefGoogle Scholar
Dijkstra, M., & Wyithe, J. S. B. 2007, MNRAS, 379, 1589CrossRefGoogle Scholar