SIMBAD references

2009AJ....137.3541W - Astron. J., 137, 3541-3547 (2009/March-0)

Six more quasars at redshift 6 discovered by the Canada-France high-z quasar survey.

WILLOTT C.J., DELORME P., REYLE C., ALBERT L., BERGERON J., CRAMPTON D., DELFOSSE X., FORVEILLE T., HUTCHINGS J.B., McLURE R.J., OMONT A. and SCHADE D.

Abstract (from CDS):

We present imaging and spectroscopic observations for six quasars at z ≥ 5.9 discovered by the Canada-France High-z Quasar Survey (CFHQS). The CFHQS contains subsurveys with a range of flux and area combinations to sample a wide range of quasar luminosities at z ∼ 6. The new quasars have luminosities 10-75 times lower than the most luminous Sloan Digital Sky Survey quasars at this redshift. The least luminous quasar, CFHQS J0216-0455 at z = 6.01, has absolute magnitude M1450= -22.21, well below the likely break in the luminosity function. This quasar is not detected in a deep XMM-Newton survey showing that optical selection is still a very efficient tool for finding high-redshift quasars.

Abstract Copyright:

Journal keyword(s): cosmology: observations - quasars: emission lines - quasars: general

Nomenclature: Table 1: CFHQS JHHMMSS+DDMMSS N=6 added.

Simbad objects: 9

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