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The Influence of Selection Effects on the Properties of BL Lacs

Published online by Cambridge University Press:  19 July 2016

M.J.M. Marchã  and
I.W.A. Browne
M.J.M. Marchã
Affiliation:
NRAL, University of Manchester, Jodrell Bank, Nr Macclesfield, Cheshire SK11 9DL, UK
I.W.A. Browne
Affiliation:
NRAL, University of Manchester, Jodrell Bank, Nr Macclesfield, Cheshire SK11 9DL, UK

Extract

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The fact that the recognition of BL Lacs always requires optical confirmation, regardless of whether the objects were first selected in the radio, or X-ray frequencies means that deep surveys will miss some objects simply because the optical emission from the host galaxy outshines that of the BL Lac. In particular, the deeper the survey, the more difficult it will become to recognize low luminosity BL Lacs in the nuclei of luminous galaxies. This recognition effect will modify the intrinsic distribution of objects, and influence their statistical properties in general.

Type
Poster contributions: Statistical Studies and Evolution
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 515
Copyright
Copyright © Kluwer 1994