J/MNRAS/500/1323ivo://CDS.VizieR/J/MNRAS/500/1323doi:10.26093/cds/vizier.75001323CDSLima-Dias C.Monachesi A.Torres-Flores S.Cortesi A.,Hernandez-Lang D.Barbosa C.E.Mendes de Oliveira C.Olave-Rojas D.,Pallero D.Sampedro L.Molino A.Herpich F.R.Jaffe Y.L.Amorin R.,Chies-Santos A.L.Dimauro P.Telles E.Lopes P.A.A.Alvarez-Candal A.,Ferrari F.Kanaan A.Ribeiro T.Schoenell W.2024-08-21T20:16:43Z2023-11-09T09:38:57ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesstar-forming-regionsinfrared-photometryvisible-astronomybroad-band-photometrynarrow-band-photometryThe nearby Hydra cluster (~50Mpc) is an ideal laboratory to understand, in detail, the influence of the environment on the morphology and quenching of galaxies in dense environments. We study the Hydra cluster galaxies in the inner regions (1R_200_) of the cluster using data from the Southern Photometric Local Universe Survey, which uses 12 narrow and broad-band filters in the visible region of the spectrum. We analyse structural (Sersic index, effective radius) and physical (colours, stellar masses, and star formation rates) properties. Based on this analysis, we find that ~88 per cent of the Hydra cluster galaxies are quenched. Using the Dressler-Schectman test approach, we also find that the cluster shows possible substructures. Our analysis of the phase-space diagram together with density-based spatial clustering algorithm indicates that Hydra shows an additional substructure that appears to be in front of the cluster centre, which is still falling into it. Our results, thus, suggest that the Hydra cluster might not be relaxed. We analyse the median Sersic index as a function of wavelength and find that for red [(u-r)>=2.3] and early-type galaxies it displays a slight increase towards redder filters (13 and 18 per cent, for red and early type, respectively), whereas for blue + green [(u-r)<2.3] galaxies it remains constant. Late-type galaxies show a small decrease of the median Sersic index towards redder filters. Also, the Sersic index of galaxies, and thus their structural properties, do not significantly vary as a function of clustercentric distance and density within the cluster; and this is the case regardless of the filter.2021MNRAS.500.1323Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/1323CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/1323https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/1323http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/1323https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/500/1323https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/500/1323http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/500/1323GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/500/1323/tablea1 (Magnitudes estimated in this work using MegaMorph project)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea1?GETtext/xml+votable180.050000true158.2813327-27.09591780.005555555555555556Cone search capability for table J/MNRAS/500/1323/tablea2 (Sersic index estimated in this work using MegaMorph project)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea2?GETtext/xml+votable180.050000true158.2813327-27.09591780.005555555555555556Cone search capability for table J/MNRAS/500/1323/tablea3 (Physical parameters of the galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/1323/tablea3?GETtext/xml+votable180.050000true158.2813327-27.09591780.0055555555555555565/9713 6/38766-38767 38849 38851 38860-38861 38864 38866https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/500/1323?format=asciiOpticalInfrareddefaultJ/MNRAS/500/1323/tablea1Magnitudes estimated in this work using MegaMorph projectJ0430magJ0430-band magnitude (1)magphot.mag;em.optfloate_J0430magError on J0430magmagstat.error;phot.magdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainumagu-band magnitude (1)magphot.mag;em.opt.Ufloate_umagError on umagmagstat.error;phot.magdoubleJ0378magJ0378-band magnitude (1)magphot.mag;em.optfloate_J0378magError on J0378magmagstat.error;phot.magdoubleJ0395magJ0395-band magnitude (1)magphot.mag;em.optfloate_J0395magError on J0395magmagstat.error;phot.magdoubleJ0410magJ0410-band magnitude (1)magphot.mag;em.optfloate_J0410magError on J0410magmagstat.error;phot.magdoublegmagg-band magnitude (1)magphot.mag;em.opt.Ufloate_gmagError on gmagmagstat.error;phot.magdoubleJ0515magJ0515-band magnitude (1)magphot.mag;em.optfloate_J0515magError on J0515magmagstat.error;phot.magdoublermagr-band magnitude (1)magphot.mag;em.opt.Ufloate_rmagError on rmagmagstat.error;phot.magdoubleJ0660magJ0660-band magnitude (1)magphot.mag;em.optfloate_J0660magError on J0660magmagstat.error;phot.magdoubleimagi-band magnitude (1)magphot.mag;em.opt.Ufloate_imagError on imagmagstat.error;phot.magdoubleJ0861magJ0861-band magnitude (1)magphot.mag;em.optfloate_J0861magError on J0861magmagstat.error;phot.magdoublezmagz-band magnitude (1)magphot.mag;em.opt.Ufloate_zmagError on zmagmagstat.error;phot.magdoubleSepSeparationpos.angDistancefloatAllDisplay all data for this sourcemeta.ref.urlcharJ/MNRAS/500/1323/tablea2Sersic index estimated in this work using MegaMorph projectnJ0378Sersic index in the J0378-bandstat.fit.paramdoublee_nJ0378Error on nJ0378stat.errordoublee_nJ0395Error on nJ0395stat.errordoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainnuSersic index in the u-bandstat.fit.paramdoublee_nuError on nustat.errordoublenJ0395Sersic index in the J0395-bandstat.fit.paramdoublenJ0410Sersic index in the J0410-bandstat.fit.paramdoublee_nJ0410Error on nJ0410stat.errordoublenJ0430Sersic index in the J0430-bandstat.fit.paramdoublee_nJ0430Error on nJ0430stat.errordoublengSersic index in the g-bandstat.fit.paramdoublee_ngError on ngstat.errordoublenJ0515Sersic index in the J0515-bandstat.fit.paramdoublee_nJ0515Error on nJ0515stat.errordoublenrSersic index in the r-bandstat.fit.paramdoublee_nrError on nrstat.errordoublenJ0660Sersic index in the J0660-bandstat.fit.paramdoublee_nJ0660Error on nJ0660stat.errordoubleniSersic index in the i-bandstat.fit.paramdoublee_niError on nistat.errordoublenJ0861Sersic index in the J0861-bandstat.fit.paramdoublee_nJ0861Error on nJ0861stat.errordoublenzSersic index in the z-bandstat.fit.paramdoublee_nzError on nzstat.errordoubleSepSeparationpos.angDistancefloatAllDisplay all data for this sourcemeta.ref.urlcharJ/MNRAS/500/1323/tablea3Physical parameters of the galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainlogM*Logarithm of the stellar mass (1)log(solMass)phys.massfloate_logM*Error on logM*log(solMass)stat.errorfloatLHaH{alpha} luminosity1e-07Wphys.luminosity;em.line.Halphadoublee_LHaError on LHa1e-07Wstat.errordoublelogsSFR? Logarithm of the specific star formation ratelog(yr**-1)phys.SFRfloatnullablee_logsSFR? Error on logsSFRlog(yr**-1)stat.errorfloatnullableAllDisplay all data for this sourcemeta.ref.urlchar