J/A+A/520/A47ivo://CDS.VizieR/J/A+A/520/A47doi:10.26093/cds/vizier.35200047CDSMaselli A.Cusumano G.Massaro E.La Parola V.Segreto A.Sbarufatti B.2017-12-06T07:38:19Z2010-09-30T09:02:24ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleibl-lacertae-objectsquasarsx-ray-sourcesWe present the results of a study on the blazar content in the 15-150keV map of the entire sky obtained analyzing 39 months of data collected by the BAT telescope aboard the Swift satellite. We performed a cross-correlation of the significance map, obtained with a dedicated highly efficient algorithm (Segreto et al., 2010A&A...510A..47S) for data processing and image reconstruction of the BAT survey data, with the blazar population of the Roma-BZCAT (Massaro et al., 2009, Cat. J/A+A/495/691). After corrections for source confusion and spurious detections, we found significance excesses higher than two standard deviations for 304 sources; the corresponding fraction of expected spurious associations is about 20%. We selected hard X-ray blazars according to their significance level and carried out a statistical analysis to characterise their emission properties. A sample of 121 blazars detected at a significance level sigma>3 is discussed in greater detail. The fraction of blazars with uncertain classification in this sample is considerable, more than twice with respect to the percentage obtained considering all the blazars classified in the Roma-BZCAT. We attribute the X-ray flux of the majority of selected BL Lac objects to the synchrotron emission.2010A&A...520A..47Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/520/A47CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/186/378 : Hard X-ray survey from Swift-BAT 2004-2006 (Tueller+, 2010)J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/520/A47https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/520/A47http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/520/A47https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/520/A47https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/520/A47http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/520/A47GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/520/A47/table2 (Blazars detected at sigma>3)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/520/A47/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/520/A47/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/520/A47/table2?GETtext/xml+votable180.050000true5.5030.1160.0055555555555555566/158 615 1546 1701 2098 2273 2564 2836 3023 3886 4027 4820 5312 5423 5597 5693 6025 6167 6477 7038 7233 7389 7518 7709 7911 7969 8057 8858 9612 9633 9707 9723 10163 10605 10800 11589 12047 12632 13359 13496 13927 14608 14641 15067 15969 16027 16093 16447 16962 17052 18096 18275 18624 18778 19190 19398 19567 19622 19996 20099 20156 20624 20657 21020 22396 22658-22659 23306 23323 23416 24084 24571 24661 25132 25302 25818 25907 26131 26292 26297 26303 26345 27082 27243 27815 28042 28083 28139 29072 31663 32289 32961 33684 33973 34099 34123 34264 36342 37385 38916 39088 40332 41043 41059 42901 43262 43908 44043 44247 44310 44705 44908 46055 46615 46924 47016 47082 47107 47747 48023 48610https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/520/A47?format=asciiX-raydefaultJ/A+A/520/A47/table2Blazars detected at sigma>3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (1)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainz? Redshiftsrc.redshiftfloatnullableu_z[?] Comment (uncertainty) on redshiftmeta.code.error;src.redshiftcharFX? X-ray flux (in 10^-12^erg/cm2/s) (2)fW.m**-2phot.flux;em.X-rayfloatnullablen_FX[*] Comment on X-ray flux (2)meta.notecharX/R? Ratio between X-ray and radio emission (3)phot.flux;arith.ratiodoublenullableSigmaSignificance in the 39-month 15-150keV mapstat.fit.goodnessfloatT[y] Included in the list of Tueller et al. (2010, Cat. J/ApJS/186/378)meta.codecharA[y] Included in the list of Ajello et al. (2009ApJ...699..603A)meta.codecharC[y] Included in the list of Cusumano et al. (2010, Cat. J/A+A/510/A48)meta.codecharSimbadNameSimbad column added by the CDSmeta.idcharONameOther designationmeta.idchar