Constraints on Very Faint High-z Quasars
Abstract
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.
- Publication:
-
Highlights of Astronomy
- Pub Date:
- August 2007
- DOI:
- Bibcode:
- 2007HiA....14..261D
- Keywords:
-
- galaxies: high-redshift;
- X-rays: diffuse background;
- cosmology: theory;
- quasars: emission lines