Identification of New Gamma-Ray Blazar Candidates with Multifrequency Archival Observations
Articolo
Data di Pubblicazione:
2013
Abstract:
Blazars are a highly variable, radio-loud subclass of active galactic nuclei. In order to better understand such
objects we must be able to easily identify candidate blazars from the growing population of unidentified sources.
Working toward this goal, we attempt to identify new gamma-ray blazar candidates from a sample of 102 previously
unidentified sources. These sources are selected from The Astronomer’s Telegram and the literature on the basis
of non-periodic variability and multi-wavelength behavior. We then attempt to associate these objects to an IR
counterpart in the Wide-field Infrared Survey Explorer all-sky survey. We are able to identify 16 candidate sources
whose IR colors are consistent with those of the blazar population. Of those, 13 sources have IR colors indicative
of being gamma-ray emitting blazar candidates. These sources all possess archival multi-wavelength observations
that support their blazar-like nature.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
BL Lacertae objects: general , galaxies: active , radiation mechanisms: non-thermal
Elenco autori:
Philip S. Cowperthwaite;F. Massaro;R. D'Abrusco;A. Paggi;G. Tosti;Howard A. Smith
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