1WHSP: VHE {gamma}-ray blazar candidates J/A+A/579/A34 ivo://CDS.VizieR/J/A+A/579/A34 doi:10.26093/cds/vizier.35790034 CDS Arsioli B. Fraga B. Giommi P. Padovani P. Marrese P.M. 2015-10-23T15:42:03Z 2015-06-23T06:16:15Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr Blazars are the dominant type of extragalactic sources at microwave and at {gamma}-ray energies. In the most energetic part of the electromagnetic spectrum (E>~100GeV) a high fraction of high Galactic latitude sources are blazars of the high synchrotron peaked (HSP) type, that is BL Lac objects with synchrotron power peaking in the UV or in the X-ray band. Building new large samples of HSP blazars is key to understand the properties of jets under extreme conditions, and to study the demographics and the peculiar cosmological evolution of these sources. High synchrotron peaked blazars are remarkably rare, with only a few hundreds of them expected to be above the sensitivity limits of currently available surveys, some of which include hundreds of millions of sources. To find these very uncommon objects, we have devised a method that combines ALLWISE survey data with multi-frequency selection criteria. The sample was defined starting from a primary list of infrared colour-colour selected sources from the ALLWISE all sky survey database, and applying further restrictions on IR-radio and IR-X-ray flux ratios. Using a polynomial fit to the multi-frequency data (radio to X-ray), we estimated synchrotron peak frequencies and fluxes of each object. 2015A&A...579A..34A https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/579/A34 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010) J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012) J/A+A/495/691 : Blazar multifrequency catalogue Roma-BZCAT (Massaro+, 2009) J/ApJ/764/135 : Spectroscopic redshifts of BL Lac objects (Shaw+, 2013) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/579/A34 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/579/A34 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/579/A34 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/579/A34 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/579/A34 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/579/A34 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/579/A34/table2 (*1WHSP sample of High Synchrotron Peaked blazars) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/579/A34/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/579/A34/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/579/A34/table2? GET text/xml+votable 180.0 50000 true 0.317917 29.592778 0.005555555555555556 6/29 49 70 115 161 248 250 267 342 398 423 447 615 690 696 716-717 877 974-975 2050 2058 2073 2094 2100 2229 2249 2273 2295 2340 2432 2610 2615 2621 2647 2650-2651 2708 4048 4050 4057 4096 4098 4141 4160 4190 4215 4255 4278 4317 4353 4472 4475 4612 4642 4672 4686 4692 4705 4748 4760 4862 4882 4964 4974 5049 5195 5208 5213 5270 5311 5361 5412 5423 5462 5483 5516 5522-5523 5529 5536 5556-5557 5569 5614 5698 5703 5721 5723 5731 5833 5844 5872 5918 5952 5990 6018 6021 6025 6027 6038-6039 6067 6088 6095 6223 6243 6348 6362 6386 6436 6457 6464 6498 6502 6625 6647 6988 6996 7034 7037-7038 7140 7233 7265 7285 7308 7380 7411 7441 7516 7518 7548 7553 7613 7617-7618 7640-7641 7681 7699 7710 7727-7728 7744 7747 7758 7777 7799 7801 7855 7905 7984 7991 8008 8067 8071 8095 8134 8137 8143 8173 8267 8299 8306 8335 8338 8374 8438-8439 8458 8479 8556 8595 8614 8665 8714 8717 8739-8740 8755 8762 8866 8910 8915 8917 8931 8937 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44290-44291 44308 44318 44340 44474 44477 44482 44533 44539 44563 44590 44638 44761 44781 44813 44820 44858 44915 44918 44931 44956 45002 45011 45016 45038 45068 45081 45105 45235 45242 45284 45330 45386 45409 45593 45812 45820 45900 45904 46067 46079 46142 46184 46227 46258 46272 46280 46350 46370 46392 46444 46483 46510 46542 46564 46796 46915 46918 46924 46994 47014 47101 47130 47149 47152 47199 47319 47375 47398 47424-47425 47461 47479 47497 47575 47586 47900 48174 48176 48223 48245 48259 48284 48316 48353 48403 48419 48443 48477 48498 48504 48576 48596 48603 48611 48624 48629 48676 48829 48985 49068 49141-49142 49151 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/579/A34?format=ascii Gamma-ray default J/A+A/579/A34/table2 *1WHSP sample of High Synchrotron Peaked blazars recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int 1WHSP 1WHSPJ designation (HHMMSS.s+DDMMSS) meta.id;meta.main char Bz [y-] in BZcat (J/A+A/495/691)? (1) meta.code char l_log(nup) [>] Limit flag on log(nup) (2) meta.code.error char log(nup) [15/18.4] Peak frequency, {nu}_peak_ log(Hz) em.freq float u_log(nup) [*] Uncertainty flag on log(nup) meta.code.error char l_log(fp) [>] Limit flag on log(fp) meta.code.error char log(fp) [-13.1/-9.5] Peak flux in erg/cm^2^/s [{nu}*f_{nu}_({nu}_peak_)] log(mW.m**-2) phot.flux.density float u_log(fp) [*] Uncertainty flag on log(fp) meta.code.error char l_z [>] Limit flag on z meta.code.error;src.redshift char z [0.01/1.1]? Redshift (3) src.redshift float nullable r_z [bcdefg] References of z (3) meta.ref;pos.frame char u_z [*] Uncertainty flag on z meta.code.error;src.redshift char rmag [14/20.3]? r magnitude used for redshift (3) phot.mag;em.opt.R float nullable Fermi-LAT {gamma}-ray counterpart in the FERMI catalogs meta.id.cross char Gamma [1.1/2.7]? Photon index {Gamma} measured for the energy band 0.1GeV<E<100GeV from FERMI catalogs (1FGL, 2FGL, or 3FGL) meta.code;spect.index float nullable e_Gamma [0.01/0.5]? rms uncertainty on Gamma stat.error float nullable Type [0/5] Source type (4) meta.code.class int TeV [y-] in TeVCat ? (5) meta.code char FOM [0.02/57.5] Figure Of Merit: likelihood of detection in the TeV band (see section 4.5) stat.likelihood float _RA Position from 1WHSP name (right ascension part) deg pos.eq.ra;meta.main _DE Position from 1WHSP name (declination part) deg pos.eq.dec;meta.main