J/MNRAS/511/572ivo://CDS.VizieR/J/MNRAS/511/572doi:10.26093/cds/vizier.75110572CDSOnken C.A.Wolf C.Bian F.Fan X.Hon W.J.Raithel D.Tisserand P.,Lai S.2025-07-03T20:15:08Z2025-02-14T14:22:24ZCDS support team

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

cds-question@unistra.frquasarsactive-galactic-nucleigalaxiesredshiftedphotometryspectroscopyvisible-astronomyinfrared-astronomyultraviolet-astronomyabsolute-magnitudeWe search for ultraluminous Quasi-Stellar Objects (QSOs) at high redshift using photometry from the SkyMapper Southern Survey Data Release 3 (DR3), in combination with 2MASS, VHS DR6, VIKING DR5, AllWISE, and CatWISE_2020_, as well as parallaxes and proper motions from Gaia DR2 and eDR3. We report 142 newly discovered Southern QSOs at 3.8 < z < 5.5, of which 126 have M_145_ < -27 AB mag and are found in a search area of 14486 deg^2^. This Southern sample, utilizing the Gaia astrometry to offset wider photometric colour criteria, achieves unprecedented completeness for an ultraluminous QSO search at high redshift. In combination with already known QSOs, we construct a sample that is >80 per cent complete for M_145_ < -27.33 AB mag at z = 4.7 and for M_145_ < -27.73 AB mag at z = 5.4. We derive the bright end of the QSO luminosity function at rest frame 145 nm for z = 4.7-5.4 and measure its slope to be {beta} = -3.60 +/- 0.37 and {beta} = -3.38 +/- 0.32 for two different estimates of the faint-end QSO density adopted from the literature. We also present the first z ~ 5 QSO luminosity function at rest frame 300 nm.2022MNRAS.511..572Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/511/572CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia EDR3 (Gaia Collaboration, 2020)I/345 : Gaia DR2 (Gaia Collaboration, 2018)II/358 : SkyMapper Southern Sky Survey. DR1.1 (Wolf+, 2018)II/379 : SkyMapper Southern Sky Survey. DR4 (Onken+, 2024)II/343 : VIKING catalogue data release 2 (Edge+, 2016)II/367 : The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020)J/AJ/155/131 : z~5 quasar luminosity function from the CFHTLS (McGreer+, 2018)J/ApJ/829/33 : Luminous of high-z QSOs with SDSS and WISE. II (Yang+, 2016)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/365 : The CatWISE2020 catalog (updated version 28-Jan-2021)J/ApJ/887/268 : Bright QSOs in Southern Hemisphere (QUBRICS) (Calderone+, 2019)J/ApJ/829/33 : Luminous of high-z QSOs with SDSS and WISE. II (Yang+, 2016)J/ApJS/243/5 : The ELQS in the PS1 footprint (PS-ELQS) (Schindler+, 2019)https://skymapper.anu.edu.au : SkyMapper home for catalogshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/511/572https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/511/572http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/511/572https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/511/572https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/511/572http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/511/572GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/511/572/table1 (List of newly discovered QSOs with redshifts between 3.8 <= z < 4.4)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/511/572/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/511/572/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/511/572/table1?GETtext/xml+votable180.050000true1.242125-21.51241670.005555555555555556Cone search capability for table J/MNRAS/511/572/table2 (List of newly discovered QSOs with redshifts between 4.4 <= z < 4.7)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/511/572/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/511/572/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/511/572/table2?GETtext/xml+votable180.050000true8.6607083-76.361250.005555555555555556Cone search capability for table J/MNRAS/511/572/table3 (List of newly discovered QSOs with redshifts between 4.7 <= z < 5.5)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/511/572/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/511/572/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/511/572/table3?GETtext/xml+votable180.050000true17.3512917-50.63047220.0055555555555555566/16402 16631 16678 16715 16976 16995-16996 17125 17482 17713 17921 17964 18473 18502 18733 20643 20695 21139 21143 22619 24597 24664 25122 25144 25212 25217 25521 25561 25760 25828 26700 26744 30026 30859 30914 30949 32785 32874 32877 33281 33476 33518 33559 33574 33589 33689 33695 33915 33950 34188 34202 34214 34225 34348 34453 34459 34476 34555 34562 34739 34847 34961 35020 35141 35266 35291 35428 35576 35676 35733 35842 36000 36040 36081 36129 36149 36302 36319 36387 36399 36539 36593 36748 37464 38357 38764 40005 40061 40168 40208 40221 40518 40805 41050 41055 41309 43449 43826 43896 43929 43993 44153 44498 44587 44812 44901 45017 45109 45131 45391 45484 45599-45600 45861 46025 46034 46047 46116 46121 46132 46203 46252 46353 46383 46462 46468 46543 46628 46677 46768 46771 47015 47169 47244 47497-47498 47558 47664 47718 47934 48659 48774https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/511/572?format=asciiUVOpticalInfrareddefaultJ/MNRAS/511/572/table1List of newly discovered QSOs with redshifts between 3.8 <= z < 4.4recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMSSSkyMapper Southern Survey designation of the form SMSS Jhhmmss.ss+/-ddmmss.s derived from mean ICRS coordinates (SMSSID)meta.id;meta.maincharzRedshift from SMSS and specta see section 4 (Redshift)src.redshiftfloatRPmagIntegrated RP mean magnitude (Vega) from Gaia eDR3 Gaia Collaboration 2021A&A...649A...1G, Cat. I/350 (R_p_)magphot.mag;em.opt.RfloatzPSFmagWeighted mean z-band PSF magnitude (AB) (z_PSF_)magphot.mag;em.opt.IfloatHmagNear-Infrared H from VHS DR6 and VIKING DR5 catalogs (Vega) (H)magphot.mag;em.IR.HfloatSimbadSimbad column added by the CDSmeta.ref.urlcharW1magMid-Infrared W1 from CatWISE catalog (Vega) (W1)magphot.mag;em.IR.3-4umfloatW2magMid-Infrared W2 from CatWISE catalog (Vega) (W2)magphot.mag;em.IR.4-8umfloatW1-W2W1-W2 colour index from CatWISE catalog (Vega) (W1-W2)magphot.color;em.IR;em.IRfloatM145MagQSO absolute magnitude at rest frame 145 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_145_)magphys.magAbs;em.UV.100-200nmfloatM300MagQSO absolute magnitude at rest frame 300 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_300_)magphys.magAbs;em.UV.200-300nmfloatObsDateDate of the first spectrum taken by our team see section Appendix A for spectrum (Epoch)'Y:M:D'meta.ref;pos.framenullableCommentsComment refering to non-standard observing setups or unusual propertiesmeta.notechar_RAPosition from SkyMapper names (right ascension part)degpos.eq.ra;meta.main_DEPosition from SkyMapper names (declination part)degpos.eq.dec;meta.mainJ/MNRAS/511/572/table2List of newly discovered QSOs with redshifts between 4.4 <= z < 4.7CommentsComment refering to non-standard observing setups or unusual propertiesmeta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SkyMapper names (right ascension part)degpos.eq.ra;meta.main_DEPosition from SkyMapper names (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMSSSkyMapper Southern Survey designation of the form SMSS Jhhmmss.ss+/-ddmmss.s derived from mean ICRS coordinates (SMSSID)meta.id;meta.maincharzRedshift from SMSS and specta see section 4 (Redshift)src.redshiftfloatRPmagIntegrated RP mean magnitude (Vega) from Gaia eDR3 Gaia Collaboration 2021A&A...649A...1G, Cat. I/350 (R_p_)magphot.mag;em.opt.RfloatzPSFmagWeighted mean z-band PSF magnitude (AB) (z_PSF_)magphot.mag;em.opt.IfloatHmagNear-Infrared H from VHS DR6 and VIKING DR5 catalogs (Vega) (H)magphot.mag;em.IR.HfloatW1magMid-Infrared W1 from CatWISE catalog (Vega) (W1)magphot.mag;em.IR.3-4umfloatW2magMid-Infrared W2 from CatWISE catalog (Vega) (W2)magphot.mag;em.IR.4-8umfloatW1-W2W1-W2 colour index from CatWISE catalog (Vega) (W1-W2)magphot.color;em.IR;em.IRfloatM145MagQSO absolute magnitude at rest frame 145 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_145_)magphys.magAbs;em.UV.100-200nmfloatM300MagQSO absolute magnitude at rest frame 300 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_300_)magphys.magAbs;em.UV.200-300nmfloatObsDateDate of the first spectrum taken by our team see section Appendix A for spectrum (Epoch)'Y:M:D'meta.ref;pos.framenullableJ/MNRAS/511/572/table3List of newly discovered QSOs with redshifts between 4.7 <= z < 5.5recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMSSSkyMapper Southern Survey designation of the form SMSS Jhhmmss.ss+/-ddmmss.s derived from mean ICRS coordinates (SMSSID)meta.id;meta.maincharzRedshift from SMSS and specta see section 4 (Redshift)src.redshiftfloatRPmagIntegrated RP mean magnitude (Vega) from Gaia eDR3 Gaia Collaboration 2021A&A...649A...1G, Cat. I/350 (R_p_)magphot.mag;em.opt.RfloatzPSFmagWeighted mean z-band PSF magnitude (AB) (z_PSF_)magphot.mag;em.opt.IfloatHmagNear-Infrared H from VHS DR6 and VIKING DR5 catalogs (Vega) (H)magphot.mag;em.IR.HfloatW1magMid-Infrared W1 from CatWISE catalog (Vega) (W1)magphot.mag;em.IR.3-4umfloatSimbadSimbad column added by the CDSmeta.ref.urlcharW2magMid-Infrared W2 from CatWISE catalog (Vega) (W2)magphot.mag;em.IR.4-8umfloatW1-W2W1-W2 colour index from CatWISE catalog (Vega) (W1-W2)magphot.color;em.IR;em.IRfloatM145MagQSO absolute magnitude at rest frame 145 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_145_)magphys.magAbs;em.UV.100-200nmfloatM300MagQSO absolute magnitude at rest frame 300 nm (AB) as exposed in the section 4.4 Estimation of M_145_ and M_300_ (M_300_)magphys.magAbs;em.UV.200-300nmfloatObsDateDate of the first spectrum taken by our team see section Appendix A for spectrum (Epoch)'Y:M:D'meta.ref;pos.framenullableCommentsComment refering to non-standard observing setups or unusual propertiesmeta.notechar_RAPosition from SkyMapper names (right ascension part)degpos.eq.ra;meta.main_DEPosition from SkyMapper names (declination part)degpos.eq.dec;meta.main