RADIO-WEAK BL LAC OBJECTS IN THE FERMI ERA

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dc.contributor.authorMassaro, F
dc.contributor.authorMarchesini, EJ
dc.contributor.authorD'Abrusco, R
dc.contributor.authorMasetti, N
dc.contributor.authorAndruchow, I
dc.contributor.authorSmith, HA
dc.date.accessioned2017-07-20T20:57:55Z
dc.date.available2017-07-20T20:57:55Z
dc.date.issued2017-01
dc.descriptionIndexación: Web of Science; Scopus.es_CL
dc.description.abstractThe existence of "radio-weak BL Lac objects" (RWBLs) has been an open question, and has remained unsolved since the discovery that quasars could be radio-quiet or radio-loud. Recently, several groups identified RWBL candidates, mostly found while searching for low-energy counterparts of the unidentified or. unassociated gammaray sources listed in the Fermi catalogs. Confirming RWBLs is a challenging task since they could be confused with white dwarfs (WDs) or weak. emission. line quasars (WELQs) when there are not sufficient data to precisely draw their broadband spectral energy distribution, and their classification is mainly based on a featureless optical spectra. Motivated by the recent discovery that Fermi BL Lacs appear to have very peculiar mid-IR emission, we show that it is possible to distinguish between WDs, WELQs, and BL Lacs using the [3.4]-[4.6]-[12] mu m color-color plot built using the WISE magnitudes when the optical spectrum is available. On the basis of this analysis, we identify WISE J064459.38 + 603131 and WISE J141046.00 + 740511.2 as the first two genuine RWBLs, both potentially associated with Fermi sources. Finally, to strengthen our identification of these objects as true RWBLs, we present multifrequency observations for these two candidates to show that their spectral behavior is indeed consistent with that. of the BL Lac population.es_CL
dc.description.urihttp://iopscience.iop.org/article/10.3847/1538-4357/834/2/113/meta;jsessionid=436A8215492E4C98B71CDA146F7ED9FF.c3.iopscience.cld.iop.org
dc.identifier.citationIOP PUBLISHINGes_CL
dc.identifier.issn0004-637X
dc.identifier.otherDOI: 10.3847/1538-4357/834/2/113
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/3750
dc.language.isoenes_CL
dc.publisherASTROPHYSICAL JOURNAL, 834 (2):10.3847/1538-4357/834/2/113 JAN 6 201es_CL
dc.subjectBL Lacertae objects: generales_CL
dc.subjectGalaxies: activees_CL
dc.subjectQuasars: emission lineses_CL
dc.subjectQuasars: generales_CL
dc.subjectRadiation mechanisms: non-thermales_CL
dc.titleRADIO-WEAK BL LAC OBJECTS IN THE FERMI ERAes_CL
dc.typeArtículoes_CL
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