J/A+A/588/A105ivo://CDS.VizieR/J/A+A/588/A105doi:10.26093/cds/vizier.35880105CDSBianconi M.Marleau F.Fadda D.2016-03-24T07:59:03Z2016-03-24T08:47:01ZCDS support team

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

cds-question@unistra.frgalaxy-clustersinfrared-photometryWe present a study of star formation and central black hole accretion activity of galaxies that are hosted in the two nearby (z~0.2) rich galaxy clusters Abell 983 and 1731. We aim to quantify both the obscured and unobscured star formation rates, as well as the presence of active galactic nuclei (AGN) as a function of the environment in which the galaxy is located. We targeted the clusters with unprecedented deep infrared Spitzer observations (0.2mJy @ 24-micron), near-IR Palomar imaging and optical WIYN spectroscopy. The extent of our observations (~3 virial radii) covers the vast of possible environments, from the very dense cluster centre to the very rarefied cluster outskirts and accretion regions. The star-forming members of the two clusters present star formation rates that are comparable with those measured in coeval field galaxies. Analysis of the spatial arrangement of the spectroscopically confirmed members reveals an elongated distribution for A1731 with respect to the more uniform distribution of A983. The emerging picture is compatible with A983 being a fully evolved cluster, in contrast with the still actively accreting A1731. Analysis of the specific star formation rate reveals evidence of ongoing galaxy pre-processing along A1731's filament-like structure. Furthermore, the decrease in the number of star-forming galaxies and AGN towards the cluster cores suggests that the cluster environment is accelerating the ageing process of the galaxies and blocking further accretion of the cold gas that fuels both star formation and black hole accretion activity.2016A&A...588A.105Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/588/A105CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/588/A105https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/588/A105http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/588/A105https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/588/A105https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/588/A105http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/588/A105GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/588/A105/list (List of fits maps)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/588/A105/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/588/A105/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/588/A105/list?GETtext/xml+votable180.050000true200.6983458.16770.005555555555555556Cone search capability for table J/A+A/588/A105/a1731 (Abell 1731 sources catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/588/A105/a1731?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/588/A105/a1731?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/588/A105/a1731?GETtext/xml+votable180.050000true199.6518708358.143716670.005555555555555556Cone search capability for table J/A+A/588/A105/a983 (Abell 983 sources catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/588/A105/a983?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/588/A105/a983?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/588/A105/a983?GETtext/xml+votable180.050000true155.5206041759.533091670.0055555555555555566/7442-7443 7448-7449 11126-11127 11132-111333.830199579824256e-20 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/588/A105?format=asciiInfrareddefaultJ/A+A/588/A105/listList of fits mapsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainscale? Scale of the imagearcsec/pixinstr.scalefloatnullableNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharJ/A+A/588/A105/a1731Abell 1731 sources catalogueF4.5? IRAC 4.5 um flux densityuJyphot.mag;em.IR.4-8umdoublenullablee_F4.5? Error in F4.5uJystat.errordoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDNumber of the sourcemeta.numberintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainF24MIPS 24 um flux densityuJyphot.flux.density;em.IR.15-30umdoublee_F24Error in F24uJystat.errordoubleFNUV? Near-UV flux densityuJyphot.flux;em.UVdoublenullablee_FNUV? Error in F_NUVuJystat.errordoublenullableFu'? SDSS u' flux densityuJyphot.flux.density;em.opt.Udoublenullablee_Fu'? Error in u'uJystat.errordoublenullableFg'? SDSS g' flux densityuJyphot.mag;em.opt.Bdoublenullablee_Fg'? Error in g'uJystat.errordoublenullableFr'? SDSS r' flux densityuJyphot.flux.density;em.opt.Rdoublenullablee_Fr'? Error in r'uJystat.errordoublenullableFi'? SDSS i' flux densityuJyphot.flux.density;em.opt.Idoublenullablee_Fi'? Error in i'uJystat.errordoublenullableFz'? SDSS z' flux densityuJyphot.mag;em.opt.Idoublenullablee_Fz'? Error in z'uJystat.errordoublenullableFJ? WIRC J flux densityuJyphot.flux.density;em.IR.Jdoublenullablee_FJ? Error in F_JuJystat.errordoublenullableFH? WIRC H flux densityuJyphot.flux.density;em.IR.Hdoublenullablee_FH? Error in F_HuJystat.errordoublenullableFKs? WIRC Ks flux densityuJyphot.mag;em.IR.Kdoublenullablee_FKs? Error in F_ksuJystat.errordoublenullableF3.6? IRAC 3.6 um flux densityuJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? Error in F3.6uJystat.errordoublenullableFW1? WISE W1 flux densityuJyphot.mag;em.IR.3-4umdoublenullablee_FW1? Error in FW1uJystat.errordoublenullableFW2? WISE W2 flux densityuJyphot.mag;em.IR.4-8umdoublenullablee_FW2? Error in FW2uJystat.errordoublenullableF5.8? IRAC 5.8 um flux densityuJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Error in F58uJystat.errordoublenullableF8? IRAC 8 um flux densityuJyphot.flux.density;em.IR.8-15umdoublenullablee_F8? Error in F8uJystat.errordoublenullableF70? MIPS 70 um flux densityuJyphot.flux.density;em.IR.30-60umdoublenullablee_F70? Error in F70uJystat.errordoublenullableF160? MIPS 160 um flux densityuJyphot.flux.density;em.mm.1500-3000GHzdoublenullablee_F160? Error in F160uJystat.errordoublenullableSNRAP? Signal-to-noise ratio in MIPS 24um image in 6-arcsec aperture diameterphys.angSize;em.IR.15-30um;instr.fovdoublenullableJ/A+A/588/A105/a983Abell 983 sources catalogueIDNumber of the sourcemeta.numberinte_FW2? Error in FW2uJystat.errordoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainF24MIPS 24 um flux densityuJyphot.flux.density;em.IR.15-30umdoublee_F24Error in F24uJystat.errordoubleFNUV? Near-UV flux densityuJyphot.flux;em.UVdoublenullablee_FNUV? Error in F_NUVuJystat.errordoublenullableFu'? SDSS u' flux densityuJyphot.flux.density;em.opt.Udoublenullablee_Fu'? Error in u'uJystat.errordoublenullableFg'? SDSS g' flux densityuJyphot.mag;em.opt.Bdoublenullablee_Fg'? Error in g'uJystat.errordoublenullableFr'? SDSS r' flux densityuJyphot.flux.density;em.opt.Rdoublenullablee_Fr'? Error in r'uJystat.errordoublenullableFi'? SDSS i' flux densityuJyphot.flux.density;em.opt.Idoublenullablee_Fi'? Error in i'uJystat.errordoublenullableFz'? SDSS z' flux densityuJyphot.mag;em.opt.Idoublenullablee_Fz'? Error in z'uJystat.errordoublenullableFJ? WIRC J flux densityuJyphot.flux.density;em.IR.Jdoublenullablee_FJ? Error in F_JuJystat.errordoublenullableFH? WIRC H flux densityuJyphot.flux.density;em.IR.Hdoublenullablee_FH? Error in F_HuJystat.errordoublenullableFKs? WIRC Ks flux densityuJyphot.mag;em.IR.Kdoublenullablee_FKs? Error in F_ksuJystat.errordoublenullableF3.6? IRAC 3.6 um flux densityuJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? Error in F3.6uJystat.errordoublenullableFW1? WISE W1 flux densityuJyphot.mag;em.IR.3-4umdoublenullablee_FW1? Error in FW1uJystat.errordoublenullableF4.5? IRAC 4.5 um flux densityuJyphot.mag;em.IR.4-8umdoublenullablee_F4.5? Error in F4.5uJystat.errordoublenullableFW2? WISE W2 flux densityuJyphot.mag;em.IR.4-8umdoublenullableF5.8? IRAC 5.8 um flux densityuJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Error in F58uJystat.errordoublenullableF8? IRAC 8 um flux densityuJyphot.flux.density;em.IR.8-15umdoublenullablee_F8? Error in F8uJystat.errordoublenullableF70? MIPS 70 um flux densityuJyphot.flux.density;em.IR.30-60umdoublenullablee_F70? Error in F70uJystat.errordoublenullableF160? MIPS 160 um flux densityuJyphot.flux.density;em.mm.1500-3000GHzdoublenullablee_F160? Error in F160uJystat.errordoublenullableSNRAP? Signal-to-noise ratio in MIPS 24um image in 6-arcsec aperture diameterphys.angSize;em.IR.15-30um;instr.fovdoublenullable