J/A+A/628/A3ivo://CDS.VizieR/J/A+A/628/A3doi:10.26093/cds/vizier.36280003CDSde La Vieuville G.Bina D.Pello R.Mahler G.Richard J.Drake A.B.,Herenz E.C.Bauer F.E.Clement B.Lagattuta D.Laporte N.Martinez J.,Patricio V.Wisotzki L.Zabl J.Bouwens R.J.Contini T.Garel T.,Guiderdoni B.Marino R.A.Maseda M.V.Matthee J.Schaye J.Soucail G.2021-03-01T16:16:23Z2019-07-25T08:39:46ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensingLyman-alpha luminosity function (LF) based on deep observations of four lensing clusters. The precise aim of the present study is to further constrain the abundance of Lyman-alpha emitters (LAEs) by taking advantage of the magnification provided by lensing clusters. We blindly selected a sample of 156 LAEs, with redshifts between 2.9<z<6.7 and magnification-corrected Lyman alpha luminosities in the range 39<LogL_Ly{alpha}_[erg/s]<43. The price to pay to benefit from magnification is a reduction of the effective volume of the survey, together with a more complex analysis procedure. To properly take into account the individual differences in detection conditions (including lensing configurations, spatial and spectral morphologies) when computing the LF, a new method based on the 1/Vmax approach was implemented. The LAE LF has been obtained in four different redshift bins with constraints down to logL_Ly{alpha}_=40.5. From our data only, no significant evolution of LF mean slope can be found. When performing a Schechter analysis including data from the literature to complete the present sample a steep faint-end slope was measured varying from {alpha}=-1.69^+0.08^_-0.08_ to {alpha}=-1.87^+0.12^_-0.12_ between the lowest and the highest redshift bins. The contribution of the LAE population to the star formation rate density at z~6 is ~<50% depending on the luminosity limit considered, which is of the same order as the Lyman-break galaxy (LBG) contribution. The evolution of the LAE contribution with redshift depends on the assumed escape fraction of Lyman-alpha photons, and appears to slightly increase with increasing redshift when this fraction is conservatively set to one.2019A&A...628A...3Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/628/A3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/498/13 : Lyman-{alpha} emitters from redshifts z~2-3 (Nilsson+, 2009)J/ApJ/706/762 : LAEs at z~4.5 in the LALA Cetus field (Wang+, 2009)J/MNRAS/403/L54 : Ly{alpha} emitters (LAE) in A1689-7.1 (Matsuda+, 2010)J/ApJ/736/31 : HETDEX pilot survey. II. 1.9<z<3.8 LAEs (Blanc+, 2011)J/ApJ/738/136 : LAEs between 0.19<z<1.25 with GALEX grism (Cowie+, 2011)J/ApJ/743/9 : z=3.1 LAEs morphological properties (Gronwall+, 2011)J/ApJ/744/110 : LAE galaxies between 2.1=<z<=3.1 (Ciardullo+, 2012)J/ApJ/751/29 : Ly{alpha} profiles of LAEs at z=3.1 (Yamada+, 2012)J/ApJ/753/95 : LAE galaxies in the ECDF-S at z~2.1 and z~3.1 (Bond+, 2012)J/ApJ/765/47 : Lyman-break galaxies and LAEs at z~3 (Nestor+, 2013)J/ApJ/779/65 : Photometry of LBGs, LAEs and GNBs at z~2.85 (Mostardi+, 2013)J/ApJ/810/107 : Lyman break galaxies & LAEs HST photometry (Mostardi+, 2015)J/ApJ/813/78 : Spitzer z=4.5 & z=5.7 LAEs properties (Finkelstein+, 2015)J/ApJ/845/172 : LAE candidates around bright Ly{alpha} blobs (Badescu+, 2017)J/MNRAS/465/316 : Lyman continuum LAEs and LBGs in SSA22 field (Micheva+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/628/A3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/628/A3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/628/A3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/628/A3https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/628/A3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/628/A3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/628/A3/tablee1 (Main characteristics of the 152 LAEs used to build the luminosity functions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/628/A3/tablee1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/628/A3/tablee1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/628/A3/tablee1?GETtext/xml+votable180.050000true197.87420389-1.351668890.005555555555555556Cone search capability for table J/A+A/628/A3/list (List of fits datacubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/628/A3/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/628/A3/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/628/A3/list?GETtext/xml+votable180.050000true199.87791.956250.0055555555555555566/12573 12642 16436 16486 16542 16609 26189 26207https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/628/A3?format=asciidefaultJ/A+A/628/A3/tablee1Main characteristics of the 152 LAEs used to build the luminosity functionsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdSource Id, lensing_field:LAE_namemeta.id;meta.maincharzRedshift based on Lyman-alpha emissionsrc.redshiftfloatFlyaLyman-alpha line flux in 10^-18^*erg/cm2/s, not corrected for magnification1e-21W.m**-2.s**-1phot.fluxfloate_FlyaError on Lyman-alpha line flux1e-21W.m**-2.s**-1stat.errorfloatMuFlux weighted magnificationphot.flux;arith.ratiofloate_MuUncertainty on magnification (lower value)stat.errorfloatE_MuUncertainty on magnification (upper value)stat.error;stat.maxfloatLogLyaLyman-alpha line luminosity in Log[erg/s]log(1e-07W)phys.luminosity;em.UVfloatComp[0/100] Completeness correctioninstr.paramfloate_CompUncertainty on completeness correctionstat.errorfloatVmaxCo-volume of detectability (Vmax) in Mpc^3^Mpc**3phys.volumefloatRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainJ/A+A/628/A3/listList of fits datacubesNzNumber of slicesmeta.numberintrecnoRecord 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.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintblambdaLower value of wavelength interval0.1nmem.wlfloatBlambdaUpper value of wavelength interval0.1nmem.wlfloatdlambdaWavelength resolution0.1nmspect.resolutionfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar