J/A+A/631/A148ivo://CDS.VizieR/J/A+A/631/A148doi:10.26093/cds/vizier.36310148CDSAguado-Barahona A.Barrena R.Streblyanska A.Ferragamo A.,Rubino-Martin J.A.Tramonte D.Lietzen H.2021-03-02T09:36:39Z2020-03-27T08:27:43ZCDS support team

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

cds-question@unistra.frgalaxy-clustersredshiftedradio-sourcesThe second legacy catalog of Planck Sunyaev-Zeldovich (SZ) sources, hereafter PSZ2, provides the largest galaxy cluster sample selected by means of the SZ signature of the clusters in a full sky survey. In order to fully characterize this PSZ2 sample for cosmological studies, all the members should be validated and the physical properties of the clusters, including mass and redshift, should be derived. However, at the time of its publication, roughly 21% of the 1653 PSZ2 members had no known counterpart at other wavelengths. Here, we present the second and last year of observations of our optical follow-up program 128-MULTIPLE-16/15B (hereafter LP15), which has been developed with the aim of validating all the unidentified PSZ2 sources in the northern sky with declinations higher than -15{deg} that have no correspondence in the first Planck catalog PSZ1. The description of the program and the first year of observations have been presented previously. The LP15 program was awarded 44 observing nights that were spread over two years with the Isaac Newton Telescope (INT), the Telescopio Nazionale Galileo (TNG), and the Gran Telescopio Canarias (GTC), all at Roque de los Muchachos Observatory (La Palma). Following the same method as described previously, we performed deep optical imaging for more than 200 sources with the INT and spectroscopy for almost 100 sources with the TNG and GTC at the end of the LP15 program. We adopted robust confirmation criteria based on velocity dispersion and richness estimates for the final classification of the new galaxy clusters as the optical counterparts of the PSZ2 detections. Here, we present the observations of the second year of LP15, as well as the final results of the program. The full LP15 sample comprises 190 previously unidentified PSZ2 sources. Of these, 106 objects were studied before, while the remaining sample (except for 6 candidates) has been completed in the second year and is discussed here. In addition to the LP15 sample, we here study 42 additional PSZ2 objects that were originally validated as real clusters because they matched a WISE or PSZ1 counterpart, but they had no measured spectroscopic redshift. In total, we confirm the optical counterparts for 81 PSZ2 sources after the full LP15 program, 55 of them with new spectroscopic information. Forty of these 81 clusters are presented in this paper. After the LP15 observational program the purity of the PSZ2 catalog has increased from 76.7% originally to 86.2%. In addition, we study the possible reasons for false detection, and we report a clear correlation between the number of unconfirmed sources and galactic thermal dust emission.2019A&A...631A.148Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/631/A148CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/594/A27 : Planck Sunyaev-Zeldovich sources (PSZ2) (Planck+, 2016)J/A+A/628/A13 : PSZ2 cluster candidates. I. (Streblyanska+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/631/A148https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/631/A148http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/631/A148https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/631/A148https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/631/A148http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/631/A148GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/631/A148/tablea1 (78 PSZ2 cluster candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/631/A148/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/631/A148/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/631/A148/tablea1?GETtext/xml+votable180.050000true219.297916724.389250.005555555555555556Cone search capability for table J/A+A/631/A148/tablea2 (Updated information of other PSZ2 candidates beyond the LP15 sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/631/A148/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/631/A148/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/631/A148/tablea2?GETtext/xml+votable180.050000true313.0083333-25.48261110.0055555555555555566/232 1166 1406 1495 1700 2288 2302 2381 2650 2676 2801 2836 3411 3894 4091 4575 5184 5201 5324 6127 6331 6592 6749 6851 7009 7117 7280 7383 7405 7565 7589 7747 7823 7905 8024 8063 8185 8831 9285 9435 10485 10548 10913 10935 11124 11142 11272 11401 11642 11708 11879 11939 11971 11993 12135 13560 13763 13915 14965 14985 15250 15280 15285 16374 16687 16721 17122 17504 17767 18198 18342 18405 18727 19797 20133 20223 21618 21624 21757 22460 22555 22691 22830 23225 23424 23436 23544 24004 24401 25235 25244 25678 25800 25909 26525 26557 26689 26773 27505 27786 27890 28013 28428 32704 32764 36222 36621 40702 40741 40933 48353 48414 48442 48576 48692https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/631/A148?format=asciiRadiodefaultJ/A+A/631/A148/tablea178 PSZ2 cluster candidatesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDOfficial identification numbermeta.idintm_ID[AB] Multiplicity index on ID for multiple counterpartsmeta.code.multipcharn_IDNotes on ID (1)meta.notecharPSZ2PSZ2 designation, PSZ2 GLLL.ll+BB.bbmeta.id;meta.maincharS/N? SZ signal-to-noise ratiostat.snrfloatnullableRAJ2000? BGC Right ascension (J2000)pos.eq.ranullableDEJ2000? BGC Declination (J2000)pos.eq.decnullableDist? Distance between Planck and the optical center reported in this workarcminpos.angDistancefloatnullablezsp? Mean spectroscopic redshift of the clustersrc.redshiftfloatnullablezsp2? BCG spectroscopic redshiftsrc.redshift;pos.heliocentricfloatnullablensp? Number of spectroscopic members retrievedmeta.numberintnullablezph? Photometric redshiftsrc.redshiftfloatnullablee_zph? Photometric redshift errorstat.errorfloatnullableRcor? Richness estimatesrc.class.richnessfloatnullablee_Rcor? Richness estimate errorstat.errorfloatnullablesigmaR? Background levelinstr.skyLevelfloatnullableFlagFlag (2)meta.code.errorcharNotesNotes (3)meta.notechar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainJ/A+A/631/A148/tablea2Updated information of other PSZ2 candidates beyond the LP15 sampleSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDOfficial identification numbermeta.idintm_ID[AB] Multiplicity index on ID for multiple counterpartsmeta.code.multipcharn_IDNotes on ID (1)meta.notecharPSZ2PSZ2 designation, PSZ2 GLLL.ll+BB.bbmeta.id;meta.maincharS/N? SZ signal-to-noise ratiostat.snrfloatnullableRAJ2000? BGC Right ascension (J2000)pos.eq.ranullableDEJ2000? BGC Declination (J2000)pos.eq.decnullableDist? Distance between Planck and the optical center reported in this workarcminpos.angDistancefloatnullablezsp? Mean spectroscopic redshift of the clustersrc.redshiftfloatnullablezsp2? BCG spectroscopic redshiftsrc.redshift;pos.heliocentricfloatnullablensp? Number of spectroscopic members retrievedmeta.numberintnullablezph? Photometric redshiftsrc.redshiftfloatnullablee_zph? Photometric redshift errorstat.errorfloatnullableRcor? Richness estimatesrc.class.richnessfloatnullablee_Rcor? Richness estimate errorstat.errorfloatnullablesigmaR? Background levelinstr.skyLevelfloatnullableFlagFlag (2)meta.code.errorcharNotesNotes (3)meta.notechar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.main