No CrossRef data available.
Article contents
A Multi-Colour Survey for High-Redshift Quasars
Published online by Cambridge University Press: 19 July 2016
Abstract
We describe how the application of techniques which utilise all the information contained in multi-colour surveys of stellar-like objects can be employed to detect quasars over an extended redshift range. The method is particularly effective for the identification of quasars with redshifts z>2.2 where the application of the ultra-violet excess criterion breaks down. Spectroscopy of a small sample of objects from the first survey field has resulted in the detection of two new faint quasars with redshifts z=3.42 and z=4.01 (ref. 1).
- Type
- Chapter XI: Quasi-Stellar Objects: Distribution and General Properties
- Information
- Symposium - International Astronomical Union , Volume 124: Observational Cosmology , 1987 , pp. 661 - 664
- Copyright
- Copyright © Reidel 1987