J/MNRAS/517/3263ivo://CDS.VizieR/J/MNRAS/517/3263doi:10.26093/cds/vizier.75173263CDSBolan P.Lemaux B.C.Mason C.Bradac M.Treu T.Strait V.,Pelliccia D.Pentericci L.Malkan M.2024-08-22T20:16:26Z2022-12-30T09:17:07ZCDS support team

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

cds-question@unistra.frgalaxiesultraviolet-photometryWe present a Bayesian inference on the neutral hydrogen fraction of the intergalactic medium (IGM), {bar}x_hi_, at z~6-8 using the properties of Lyman break galaxies during the Epoch of Reionization.We use large samples of LBG candidates at 5.5<=z<=8.2 with spectroscopy from Keck/DEIMOS and Keck/MOSFIRE. For each galaxy, we incorporate either the Lyman-{alpha} equivalent width (EW) for detections or the EW limit spectrum for nondetections to parameterize the EW distribution at various ultraviolet brightnesses for a given redshift. Using our reference sample of galaxy candidates from the ionized universe at z~6.0, we are able to infer {bar}x_hi_ at two redshifts: z~6.7 and z~7.6. This work includes intrinsically faint, gravitationally lensed galaxies at z~6.0 in order to constrain the intrinsic faint-end Ly{alpha} EW distribution and provide a comparable population of galaxies to counterparts in our sample that are at higher redshift. The inclusion of faint galaxy candidates, in addition to a more sophisticated modelling framework, allows us to better isolate effects of the interstellar medium and circumgalactic medium on the observed Lyman-{alpha} distribution from those of the IGM. We infer an upper limit of {bar}x_hi_<=0.25 at z=6.7+/-0.2 and a neutral fraction of {bar}x_hi_=0.83^+0.08^_-0.11_ at z=7.6+/-0.6, both within 1{sigma} uncertainty, results which favor a moderately late and rapid reionization.2022MNRAS.517.3263Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/517/3263CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/517/3263https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/517/3263http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/517/3263https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/517/3263https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/517/3263http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/517/3263GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/517/3263/nondet (*Information on the properties of LBGs without spectroscopic Lyman-alpha from Keck/DEIMOS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/517/3263/nondet?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/517/3263/nondet?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/517/3263/nondet?GETtext/xml+votable180.050000true206.895063-11.7510360.0055555555555555566/6383 6539 8921 16486 17741 18475 25675 28448 34793 49012https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/517/3263?format=asciiUVdefaultJ/MNRAS/517/3263/nondet*Information on the properties of LBGs without spectroscopic Lyman-alpha from Keck/DEIMOSmuMagnification valuephot.flux;arith.ratiofloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspecIDSpectroscopic ID from DEIMOS observationsmeta.idintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainmagF160W apparent magnitude (AB)magphot.mag;em.IRfloatpznopriPeak value of the P(z) functionstat.fit.goodnessfloatb_muLower 1 sigma limit on magnificationstat.errorfloatB_muUpper 1 sigma limit on magnificationstat.errorfloatUVMAGAbsolute UV magnitudemagphys.magAbsfloatL/L*Luminosity with respect to characteristic luminosityphys.luminosity;arith.ratiofloatPz57Fraction of integrated P(z) which falls between the redshifts 5 and 7stat.fit.goodnessfloatbetaUV beta slopemeta.crypticfloatEWlim1 sigma equivalent width limit on Lyman-alphaspect.line.eqWidthfloat