High-redshift Quasars -- their Signatures and Effects

Details High-redshift Quasars -- their Signatures and Effects High-redshift Quasars -- their Signatures and Effects

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.3410f&link_type=abstract

American Astronomical Society Meeting 204, #34.10; Bulletin of the American Astronomical Society, Vol. 36, p.704

Astronomy and Astrophysics

Astronomy

Scientific paper

I will summarize recent observations of the highest redshift quasars and their relations to the first star formation and cosmic reionization. I will discuss the Gunn-Peterson effect in the quasar spectra and its implication to the history of reionization. I will present results on the evolution of quasar luminosity function at the highest redshift and the contribution of quasars/AGNs to the high-redshift ionizing background. I will also discuss the evidences of chemical enrichment and intensive star-formation activity in the high-redshift quasar environment. Finally, I will comment on the prospects of finding quasars at z>7 with existing or planned surveys.

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