J/MNRAS/447/1126ivo://CDS.VizieR/J/MNRAS/447/1126doi:10.26093/cds/vizier.74471126CDSWegner G.A.Chu D.S.Hwang H.S.2024-08-14T20:19:31Z2015-11-24T16:00:24ZCDS support team

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

cds-question@unistra.frgalaxy-clustersvisible-astronomyh-alpha-photometryWe investigate the star formation rate and its location in the major merger cluster Abell 2465 at z=0.245. Optical properties of the cluster are described in. Measurements of the H{alpha} and infrared dust emission of galaxies in the cluster were made with an interference filter centred on the redshifted line at a wavelength of 817 nm and utilized data from the Wide-field Infrared Survey Explorer satellite 12{mu}m band. Imaging in the Johnson U and B bands was obtained, and along with Sloan Digital Sky Survey u and r was used to study the blue fraction, which appears enhanced, as a further signature of star formation in the cluster. Star formation rates were calculated using standard calibrations. The total star formation rate normalized by the cluster mass, {Sigma}SFR/M_cl_ compared to compilations for other clusters indicate that the components of Abell 2465 lie above the mean z and M_cl_ relations, suggestive that interacting galaxy clusters have enhanced star formation. The projected radial distribution of the star-forming galaxies does not follow an NFW profile and is relatively flat indicating that fewer star-forming galaxies are in the cluster centre. The morphologies of the H{alpha} sources within R_200_ for the cluster as a whole indicate that many are disturbed or merging, suggesting that a combination of merging or harassment is working.2015MNRAS.447.1126Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/447/1126CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/447/1126https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/447/1126http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/447/1126https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/447/1126https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/447/1126http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/447/1126GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/447/1126/table1 (The observed photometric quantities measured in Abell 2465)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/447/1126/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/447/1126/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/447/1126/table1?GETtext/xml+votable180.050000true339.68359-5.762830.0055555555555555566/18642-186432.367228618189496e-19 2.6706780932288093e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/447/1126?format=asciiOpticaldefaultJ/MNRAS/447/1126/table1The observed photometric quantities measured in Abell 2465recnoRecord 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.mainimagGunn i magnitudemagphot.mag;em.opt.Ifloate_imagrms uncertainty on imagmagstat.error;phot.mag;em.opt.Ifloatm817817nm filter magnitudemagphot.mag;em.opt.Ifloate_m817rms uncertainty on m817magstat.errorfloatEWHaH{alpha} equivalent width (1)0.1nmspect.line.eqWidth;em.line.Halphafloate_EWHarms uncertainty on EWHa0.1nmstat.errorfloatFHaH{alpha} flux (2)1e-19W.m**-2.arcmin**-2phot.flux;em.line.Halphafloate_FHarms uncertainty on FHa (2)1e-19W.m**-2.arcmin**-2stat.errorfloat