Faint emission line quasars and the number density for Z of no less that 2 and less than 2.5

Details Faint emission line quasars and the number density for Z of no less that 2 and less than 2.5 Faint emission line quasars and the number density for Z of no less that 2 and less than 2.5

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apjs...57..523w&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 57, March 1985, p. 523-533. NSF-supported research.

Astronomy and Astrophysics

Astrophysics

36

Astronomical Spectroscopy, Emission Spectra, Quasars, Lyman Alpha Radiation, Photographic Plates, Red Shift

Scientific paper

A list is presented of 189 faint emission line quasars with magnitude of between 19 and 22. The quasars are in 20 fields spread around the sky, observed with the Canada-Frence-Hawaii Telescope. Limits to the number as a function of magnitude for redshifts of no less than 2.0, but less than 2.5 are determined using objects with redshifts from two lines, and single-line objects in which the line could be Lyman-alpha. The results show that quasar numbers in this redshift interval increase more slowly with magnitude after 20 mag than they do for quasars brighter than 20 mag. A list is given of the close quasar-galaxies and quasar-quasar pairs.

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