J/ApJS/206/17ivo://CDS.VizieR/J/ApJS/206/17doi:10.26093/cds/vizier.22060017CDSMaselli A.Massaro F.Cusumano G.D'Abrusco R.La Parola V.Paggi A.,Segreto A.Smith H.A.Tosti G.2020-01-17T05:30:49Z2013-08-06T09:49:14ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvisible-astronomysloan-photometryredshiftedquasarsbl-lacertae-objectsradio-sourcesinfrared-sourcesWide-band photometryultraviolet-astronomyWe searched for {gamma}-ray blazar candidates among the 382 unidentified hard X-ray sources of the third Palermo BAT Catalog (3PBC) obtained from the analysis of 66 months of Swift Burst Alert Telescope (BAT) survey data and listing 1586 sources. We adopted a recently developed association method based on the peculiar infrared colors that characterize the {gamma}-ray blazars included in the second catalog of active galactic nuclei detected by the Fermi Large Area Telescope. We used this method exploiting the data of the all-sky survey performed by the Wide-field Infrared Survey Explorer (WISE) to establish correspondences between unidentified 3PBC sources and WISE {gamma}-ray blazar candidates located within the BAT positional uncertainty region at a 99% confidence level. We obtained a preliminary list of candidates for which we analyzed all the available data in the Swift archive to complement the information in the literature and in the radio, infrared, and optical catalogs with the information on their optical-UV and soft X-ray emission. Requiring the presence of radio and soft X-ray counterparts consistent with the infrared positions of the selected WISE sources, as well as a blazar-like radio morphology, we finally obtained a list of 24 {gamma}-ray blazar candidates.2013ApJS..206...17Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/206/17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/311 : WISE All-Sky Data Release (Cutri+ 2012)VII/269 : SDSS Quasar Catalog, DR9Q (Paris+, 2012)J/A+A/524/A64 : 2PBC 54-month Palermo BAT-survey catalogue (Cusumano+, 2010)J/ApJS/206/13 : Unidentified gamma-ray sources. II. (Massaro+, 2013)J/ApJS/206/12 : Unidentified gamma-ray sources. I. (D'Abrusco+, 2013)J/A+A/545/A101 : Spectra of 29 Swift/BAT optical counterparts (Parisi+, 2012)J/A+A/541/A160 : X & gamma-ray obs. of selected blazars (Giommi+, 2012)J/ApJS/195/2 : The second Swift BAT GRB catalog (BAT2) (Sakamoto+, 2011)J/A+A/520/A47 : Blazars in the Swift-BAT hard X-ray sky (Maselli+, 2010)J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010)J/ApJ/699/603 : Evolution of Swift/BAT blazars (Ajello+, 2009)J/ApJS/175/179 : The BAT1 gamma-ray burst catalog (Sakamoto+, 2008)http://www.ifc.inaf.it/cgi-bin/INAF/pub.cgi?href=activities/bat/index.html :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/206/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/206/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/206/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/206/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/206/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/206/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/206/17/table2 (List of correspondences between unidentified 3PBC hard X-ray sources and WISE {gamma}-ray blazar candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/206/17/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/206/17/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/206/17/table2?GETtext/xml+votable180.050000true14.303563.99522220.0055555555555555566/325 1069 1093 1120 1782 3103 3616 3724 4070 8484 10788 14933 15434 16273 18319 29648 32658 33248 39467 41938 42003 43359 47074 48676https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/206/17?format=asciiUVOpticalInfraredRadiodefaultJ/ApJS/206/17/table2List of correspondences between unidentified 3PBC hard X-ray sources and WISE {gamma}-ray blazar candidatesz? Redshiftsrc.redshiftfloatnullableWISEWISE name (JHHMMSS.ss+DDMMSS.s)meta.id.crosscharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint3PBC3PBC name (JHHMM.m+DDMM)meta.id;meta.maincharOName3PBC counterpart namemeta.id.crosscharUVNumber of UVOT observations in table3 for this sourcemeta.ref.urlintnullableClClass of the candidate as designated by our association procedure (A=best) (1)meta.codecharSepDistance d from the 3PBC counterpartarcsecpos.angDistancefloatf_Sep[s] s: This value represents the distance of the WISE source from the 3PBC sourcemeta.codecharr_z? Reference for z (2)meta.ref;pos.frameintnullableFrRadio flux density F_r_mJyphot.flux.density;em.radiofloatr_Fr[nspf] Reference for Fr (3)meta.ref;pos.framecharu-r? u-r color index as derived from SDSS-DR9magphot.color;em.opt.U;em.opt.RfloatnullableIR/XComparison between IR/X positions (4)meta.codecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from WISE names (right ascension part)degpos.eq.ra;meta.main_DEPositions from WISE names (declination part)degpos.eq.dec;meta.mainJ/ApJS/206/17/table3Optical-UV photometry of WISE {gamma}-ray blazar candidates observed by Swift-UVOTrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWISEWISE name of the candidate (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharGLATThe Galactic latitude bdegpos.galactic.latfloatE(B-V)The E(B-V) valuemagphot.color.excessfloate_E(B-V)E(B-V) uncertaintymagstat.errorfloatObsIDSwift observation identification numbermeta.idDateObservation datetime.epoch;obsnullableFiltUVOT filter (U, B, V, M2, W1 or W2)meta.notecharExpExposure timestime.duration;obs.exposureintmagMagnitude in filter, or upper limit (1)magphot.magfloate_mag? mag uncertainty (1)magstat.error;phot.magfloatnullable