J/A+A/706/A362ivo://CDS.VizieR/J/A+A/706/A362CDSArsenov N.Kovacs A.Perez Sar M.Bogdan A.Sz.Sinigaglia F.,Kitaura F.S.Favole G.Slavcheva-Mihova L.2026-02-20T08:41:26Z2026-02-20T09:37:43ZCDS support team

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

cds-question@unistra.frsurveysquasarsredshiftedvisible-astronomyUnderstanding the formation and evolution of the cosmic web of galaxies is a fundamental goal of both theoretical and observational cosmology, using various tracers of the cosmic large-scale structure at an ever wider range of redshifts. Our principal aim is to advance the mapping of the cosmic web at high redshifts using observational and synthetic catalogues of quasars (QSOs), which offer a powerful probe of structure formation and the validity of the concordance cosmological model at the largest scales in the Universe. In this analysis, we selected 708483 quasars at 0.8<z<2.2 from the Quaia data set, allowing an extended reconstruction of the matter density field using 24372deg^2^ sky area with a well-understood selection function, and thus going beyond the capacity of previous studies. Using the REVOLVER method, we created catalogues of voids and clusters based on the estimation of the local density at QSO positions with Voronoi tessellation. We tested the consistency of Quaia data and 50 realistic mock catalogues, including various parameters of the voids and clusters in characteristic subsets of the data, and also measurements of the density profiles of these cosmic super-structures at R=~100h^-1^Mpc scales. We identified 12820 voids and 41154 clusters in the distribution of Quaia quasars. We found ~5-10% level agreement between data and the ensemble of the 50 mocks considering void and cluster radii, average inner density, and density profiles at all redshifts. In particular, we tested the role of survey mask proximity effects in the void and cluster detection, which although present in the data, are consistent in simulations and observations. Testing the extremes, the largest voids and clusters reach Reff=~250h^-1^Mpc and Reff=~150h^-1^Mpc, respectively, but without evidence for ultra-large cosmic structures exceeding the dimensions of the largest structures in our mock catalogues. Our data-analysis results highlight the capacity of Quaia quasars to robustly map the high-z cosmic web, further supported by the fully consistent statistical results from 50 mock catalogues. As an important deliverable, we share our density field estimation, void catalogues, and cluster catalogues with the public, allowing various additional cross-correlation probes in the high-z cosmic web2026A&A...706A.362Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A362CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/964/69 : Quaia, the Gaia-unWISE Quasar catalog (Storey-Fisher+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/706/A362https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/706/A362http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/706/A362https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/706/A362https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/706/A362http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/706/A362GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/706/A362/voids (Voids Catalogue from Quaia (table A1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/706/A362/voids?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/706/A362/voids?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/706/A362/voids?GETtext/xml+votable180.050000true178.400555.9490.005555555555555556Cone search capability for table J/A+A/706/A362/clusters (Clusters catalogue from Quaia (table A1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/706/A362/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/706/A362/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/706/A362/clusters?GETtext/xml+votable180.050000true178.64338611-2.970131110.005555555555555556Cone search capability for table J/A+A/706/A362/vaddcat (Value-added catalogue of quasars within Quaia quasars in our analysis (table A2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/706/A362/vaddcat?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/706/A362/vaddcat?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/706/A362/vaddcat?GETtext/xml+votable180.050000true182.9844-0.61390.0055555555555555561/4-5 9-10 16 25 27 33-34 45 2/25 32 34-35 44-46 69-70 72-73 77 98-99 105 107 131 140 142-143 177 179 189 3/33-36 97 99 108-109 112-113 116-117 119-121 126 132 134-135 188-189 234-235 238-239 250 272-273 275 284 286 296 307 317 320 322-323 328-330 341 343 349 385-387 390-391 417-419 424-426 494-495 506-507 510-511 515 519 521-523 564-566 605 607 616 629 631 637 639 686 698-699 740-741 4/34 40 42-43 46-47 128 130 148 152 154 160-162 164-165 168 170 384-385 387 421 441 444 456-458 460-461 463 472-473 488-489 492-493 496 498-502 508 510 532-534 760-762 764 772-773 788-789 797 832 835 837-838 930 946 994 1006 1018-1019 1096-1098 1140 1142-1143 1148-1150 1189 1191-1193 1195-1197 1199 1205 1210 1213 1215-1217 1219 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41283 43435 43437-43439 43467 43474 43481-43482 43487 43496-43498 43504 43506-43507 43509-43511 43637-43639 43641-43643 43665 43678-43679 43695 43697-43699 43715 43721-43723 43777 43785-43787 43841-43843 44008-44010 44012-44013 44015 44163 44166 44174-44175 44192-44193 44208 44210 44264 44266-44268 44270-44271 44273-44275 44277 44279 44281-44282 44441 44443 44446-44447 44450-44451 44454 44465 44468-44470 44476-44478 44512-44514 44516 44598 44652-44654 44664-44665 44668-44669 44671 44820 44823 44874 44916 44918-44919 44936-44938 45016-45018 45045-45047 45073 45133 45144 45149 45151 45163 45166-45167 45171 45173 45175 45213 45215 45231 45237 45239 45249-45251 45573 45596-45598 45605 45607 45612-45613 45615 45620 45622 45673 45675 45701 45703 45709 45733 45738 45753 45755 45762-45763 45804-45805 45807 47104 47121 47126-47127 47132-47133 47135 47157 47170-47171 47173-47175 47200-47201 47203 47209-47210 47212-47213 47215 47306 47313-47315 47321 47323 47328 47337 47339 47348-47349 47516-47517 47519-47521 47523 47545 47584-47585 47587 47600-47602 47604-47605 47614-47615 47681 47957 47959 47964-47965 48157-48159 48188-48189 48191 48205 48207 48224-48225 48233-48235 48284-48286 48320-48321 48323 48652-48653 48689 48692-48693 48695 48701 48744-48745 48747 48836 48839 48845 48856 48885 48887 48956 48958 48992-48994 48996-48997 49002 49005-49009 49021 49023 49065 49069-49071 49104 49106 49109-49111 49144-49146 49148-49149 49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/706/A362?format=asciiOpticaldefaultJ/A+A/706/A362/voidsVoids Catalogue from Quaia (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID of void, given by ZOBOV (ID)meta.id;meta.mainintRAJ2000Right ascension (J2000) of void centre (ra)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) of void centre (dec)degpos.eq.dec;meta.mainindexedzQuaia redshift of void centre (redshift)src.redshiftfloatReffMPCEffective radius of void [Mpc/h] (R_eff_mpc)Mpcphys.size.radiusdoubledextMinimun cell of Voronoi cell in void (delta_ext)stat.fit.paramfloatdavgAverage density within the void (delta_avg)src.densitydoublelambdaAverage of density fluctuation, delta_avg_*R_eff_(mpc)^1.2^ (lambda)stat.fit.paramdoubleDensRatioDensity ratio of void (DensRatio)phys.density;arith.ratiodoubleThetaeffEffective angular size of void (Theta_eff)degphys.angSizedoubleEdgeFlag[0/1] 1 if close to the survey edge, else 0 (EdgeFlag)meta.codeintNmembersNumber of quasars in void (Nmembers)meta.numberintRABdegRight ascension of void bary-centre (ra_v_bc)degpos.eq.raDEBdegDeclination of void bary-centre (dec_v_bc)degpos.eq.deczBQuaia redshift of void bary-centre (redshift_v_bc)src.redshift;pos.heliocentricfloatJ/A+A/706/A362/clustersClusters catalogue from Quaia (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID of cluster, given by ZOBOV (ID)meta.id;meta.mainintRAJ2000Right ascension (J2000) of cluster centre (ra)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) of cluster centre (dec)degpos.eq.dec;meta.mainindexedzQuaia redshift of cluster centre (redshift)src.redshiftdoubleReffMpcEffective radius of cluster [Mpc/h] (R_eff_mpc)Mpcphys.size.radiusdoubledextMaximum density of Voronoi cell in cluster (delta_ext)stat.fit.paramdoubledavgAverage density within the cluster (delta_avg)phys.density;stat.meandoublelambdaAverage of density fluctuation, delta_avg_*R_eff_(mpc)^1.6^ (lambda)stat.fit.paramdoubleDensRatioDensity ratio of cluster (DensRatio)phys.density;arith.ratiodoubleThetaeffEffective angular size of cluster (Theta_eff)degphys.angSizedoubleEdgeFlag[0/1] 1 if close to the survey edge, else 0 (EdgeFlag)meta.codeintNmembersNumber of quasars in cluster (Nmembers)meta.numberintJ/A+A/706/A362/vaddcatValue-added catalogue of quasars within Quaia quasars in our analysis (table A2)DEVdeg? Declination (J2000) of void circumcentre (dec_v)degpos.eq.decnullablezvoid? Redshift of void circumcentre (z_v)src.redshift;pos.heliocentricfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000) (ra_qso)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (dec_qso)degpos.eq.dec;meta.mainindexedzqsoQuaia redshift (z_qso)src.redshift;pos.heliocentricdoubleDensNormalized density around QSO (dens)phys.density;arith.ratiodoubleVolcorrVoronoi volume corrected for systematics (vol_corr)stat.fit.paramdoublef_VolDens[0/1] If Volcorr and Dens are good: 1, else 0 (vol_dens_flag)meta.codeintVolnocorrRaw Voronoi volume of the QSO (vol_nocorr)stat.fit.paramdoubleselfuncQuaia selection function value (sel_func)stat.fit.paramdoubleGaiaDR3Gaia DR3 source identifier (source_id)meta.idIDvoid? Void ID, if the QSO is a member (ID_v)meta.idfloatnullableRAVdeg? Right ascension (J2000) of void circumcentre (ra_v)degpos.eq.ranullableRABdeg? Right ascension (J2000) of void barycentre (ra_v_bc)degpos.eq.ranullableDEBdeg? Declination (J2000) of void barycentre (dec_v_bc)degpos.eq.decnullablezvoidbc? Redshift of void barycentre (z_v_bc)src.redshift;pos.heliocentricfloatnullableReffMpcvoid? Effective radius of the parent void [Mpc/h] (R_eff_mpc_v)Mpcmeta.id.parent;phys.size.radiusdoublenullabledminvoid? Minimum density within the parent void (delta_min_v)phys.density;stat.minfloatnullabledaavgvoid? Average density within the parent void (delta_avg_v)src.densitydoublenullablelambdavoid? delta_avg_*R_eff_mpc**1.2 of parent void (lambda_v)stat.fit.paramdoublenullableThetaeffvoid? Effective angular size of void (Theta_eff_v)degphys.angSizedoublenullableEdgeFlagvoid[0/1]? Void edge flag (if close to edge: 0, else: 1) (EdgeFlag_v)meta.codefloatnullableRoverRvoid? Relative QSO distance to void circumcentre (R_over_Rv)pos.angDistancedoublenullableIDcl? Cluster ID, if the QSO is a member (ID_c)meta.iddoublenullableRACdeg? Right ascension (J2000) of cluster circumcentre (ra_c)degpos.eq.ranullableDECdeg? Declination (J2000) of cluster circumcentre (dec_c)degpos.eq.decnullablezcl? Redshift of cluster circumcentre (z_c)src.redshift;pos.heliocentricdoublenullableReffMPCcl? Effective radius of parent cluster [Mpc/h] (R_eff_mpc_c)Mpcmeta.id.parent;phys.size.radiusdoublenullabledmaxcl? Maximum density of a Voronoi cell in cluster (delta_max_c)phys.density;stat.maxdoublenullabledavgcl? Average density within the parent cluster (delta_avg_c)src.densitydoublenullablelambdacl? delta_avg_*R_eff_mpc**1.6 of parent void (lambda_c)stat.fit.paramdoublenullableThetaeffcl? Effective angular size of cluster (Theta_eff_c)Mpcphys.angSizedoublenullableEdgeFlagcl[0/1]? Cluster edge flag (edgec lose: 0, else: 1) (EdgeFlag_c)meta.codefloatnullableRoverRc? Relative QSO distance to cluster circumcentre (R_over_Rc)pos.angDistancedoublenullableunWISEunWISE DR1 source identifier (unwise_objid)meta.idchar