2MASS observation of BL Lac objects II. J/other/NewA/16. ivo://CDS.VizieR/J/other/NewA/16.503 CDS Mao L.S. 2017-09-27T05:55:39Z 2012-01-16T09:25:31Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr bl-lacertae-objects infrared-sources In this paper, we have searched for the Two Micron All Sky Survey (2MASS, Cat. II/246) counterparts of 1434 BL Lacs. 833 of 1434 BL Lacs (58%) have spatially coincident 2MASS counterparts. Fermi-detected BL Lacs (FBLs) have a much higher 2MASS detection rate than non-Fermi-detected BL Lacs (non-FBLs) (95% vs 49%). 2011NewA...16..503M https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NewA/16.503 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/297 : NOMAD Catalog (Zacharias+ 2005) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) VII/258 : Quasars & Active Galactic Nuclei (13th Ed.) (Veron+ 2010) J/other/NewA/11.27 : 2MASS observation of BL Lac objects (Chen+, 2005) J/other/NewA/11.557 : Infrared photometry of BL Lac objects (Chen+, 2006) J/ApJ/715/429 : First Fermi-LAT AGN catalog (1LAC) (Abdo+, 2010) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NewA/16.503 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NewA/16.503 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NewA/16.503 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/NewA/16.503 https://vizier.iucaa.in/viz-bin/votable?-source=J/other/NewA/16.503 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/NewA/16.503 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/other/NewA/16.503/table1 (2MASS observational data of 833 BL Lacs) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NewA/16.503/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/other/NewA/16.503/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NewA/16.503/table1? 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Should Not be used for identification. meta.record int Name Source name meta.id;meta.main char z ? Confirmed redshift or lower limit src.redshift float nullable l_z [a] a if redshift lower limit meta.code.error;src.redshift char Type Type Source type adopted from the VV13 (Cat. VII/258) catalog (1) src.class char FBL? [Y] Y if this BL Lac is in the LAC sample (Fermi-detected BL Lac, FBL) meta.code char NOMAD NOMAD (Cat. I/297) counterpart designation meta.id char 2MASS 2MASS (Cat. II/246) counterpart designation meta.id char n_2MASS [*] * when source having more than one 2MASS counterpart meta.note char r1 Position difference between BL Lac and NOMAD counterpart positions arcsec pos;arith.diff float r2 Position difference between BL Lac and 2MASS counterpart positions arcsec pos;arith.diff float Jmag 2MASS J magnitude mag phot.mag;em.IR.J float e_Jmag ? rms uncertainty on Jmag mag stat.error;phot.mag;em.IR.J float nullable Hmag 2MASS H magnitude mag phot.mag;em.IR.H float e_Hmag ? rms uncertainty on Hmag mag stat.error;phot.mag;em.IR.H float nullable Ksmag 2MASS Ks magnitude mag phot.mag;em.IR.K float e_Ksmag ? rms uncertainty on Ksmag mag stat.error;phot.mag;em.IR.K float nullable Q2M [ABCDEU] 2MASS quality flags (2) meta.code.qual char AV Interstellar extinction coefficients from NED mag phys.absorption float n_AV [Sb] Note on AV (3) meta.note char alf.IR ? NIR spectral index {alpha} such that F_{nu}_{prop.to}{nu}^-{alpha}^ spect.index float nullable e_alf.IR ? rms uncertainty on alf.IR stat.error float nullable logFp ? Synchrotron peak frequency log(Hz) em.freq float nullable r_logFp ? Reference for Fpeak (4) meta.ref;pos.frame int nullable dH ? Curvature parameter of the NIR spectrum, {delta}H stat.fit.param float nullable n_dH [c] c for low confidence curvature meta.note char e_dH ? rms uncertainty on dH stat.error float nullable NED Simbad column added by the CDS meta.ref.url char _RA Position from 2MASS counterpart (right ascension part) deg pos.eq.ra;meta.main _DE Position from 2MASS counterpart (declination part) deg pos.eq.dec;meta.main