Optical Morphology of Bright Quasars on Images Taken With 1.2 M Schmidt Cameras

Details Optical Morphology of Bright Quasars on Images Taken With 1.2 M Schmidt Cameras Optical Morphology of Bright Quasars on Images Taken With 1.2 M Schmidt Cameras

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aj....111..645f&link_type=abstract

Astronomical Journal v.111, p.645

Astronomy and Astrophysics

Astronomy

6

Quasars: General, Luminosity Function, Galaxies: Distances And Redshifts

Scientific paper

The optical morphology of bright extragalactic objects listed by Green et at. [ApJS, 61,305 (1986)] is determined on Palomar Observatory Sky Survey prints. Morphological types are assigned according to whether objects appear resolved or unresolved. These are plotted in the Hubble Diagram. When combined with previous results from the Medium-Bright Quasar Survey (MBQS), objects of redshift z are found to be unresolved on 1.2 m Schmidt telescopes at apparent magnitudes brighter than B = 21 - 3/4z over a large magnitude range 12.5 < B < 18.5. A luminosity cutoff for unresolved objects in this range is found to be M_B_ = -24, (H_0_ = 50), in agreement with an earlier estimate. Relevance to the search for large, bright, host galaxies, and for "naked quasar" candidates, is noted.

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