Surveys and the Blazar Parameter Space

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dc.creatorPerlman, E. S.
dc.creatorPadovani, P.
dc.creatorLandt, H.
dc.creatorStocke, J. T.
dc.creatorCostamente, L.
dc.creatorRector, T. A.
dc.creatorGiommi, P.
dc.creatorSchachter, J. F.
dc.date2000-12-08
dc.date.accessioned2026-07-07T01:56:56Z
dc.date.available2026-07-07T01:56:56Z
dc.descriptionThe rareness of blazars, combined with the previous history of relatively shallow, single-band surveys, has dramatically colored our perception of these objects. Despite a quarter-century of research, it is not at all clear whether current samples can be combined to give us a relatively unbiased view of blazar properties, or whether they present a view so heavily affected by biases inherent in single-band surveys that a synthesis is impossible. We will use the coverage of X-ray/radio flux space for existing surveys to assess their biases. Only new, deeper blazar surveys approach the level needed in depth and coverage of parameter space to give us a less biased view of blazars. These surveys have drastically increased our knowledge of blazars' properties. We will specifically review the discovery of ``blue'' blazars, objects with broad emission lines but broadband spectral characteristics similar to HBL BL Lac objects.
dc.description8 pages, 4 figures, to appear in "Blazar Demographics & Physics", ed. P. Padovani & C. M. Urry
dc.identifierhttps://arxiv.org/abs/astro-ph/0012185
dc.identifierhttp://arxiv.org/abs/astro-ph/0012185
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2188
dc.subjectAstrophysics
dc.titleSurveys and the Blazar Parameter Space
dc.typetext

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