J/ApJ/950/66ivo://CDS.VizieR/J/ApJ/950/66doi:10.26093/cds/vizier/ba-xp-22CDSKashino D.Lilly S.J.Matthee J.Eilers A.-C.Mackenzie R.,Bordoloi R.Simcoe R.A.2026-07-02T11:59:39Z2025-09-03T09:21:01ZCDS support team

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

cds-question@unistra.frquasarsintergalactic-mediuminfrared-astronomyspectroscopysurveysgalaxiesinfrared-sourcesredshiftedWe present a first sample of 117 [OIII]{lambda}{lambda}4960,5008 -selected star-forming galaxies at 5.33<z<6.93 detected in JWST/NIRCam 3.5{mu}m slitless spectroscopy of a 6.5'x3.4' field centered on the hyperluminous quasar SDSS J010013.02+280225.8 (SDSSJ0100+2802), obtained as part of the Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization (EIGER) survey. Three prominent galaxy overdensities are observed, one of them at the redshift of the quasar. Galaxies are found within 200pkpc and 105km/s of four known metal absorption-line systems. We focus on the role of the galaxies in ionizing the intergalactic medium (IGM) during the later stages of cosmic reionization and construct the mean Ly{alpha} and Ly{beta} transmission as a function of distance from the galaxies. At the lowest redshifts in our study, 5.3<z<5.7, the IGM transmission rises monotonically with distance from the galaxies, as seen previously at lower redshifts. In contrast, at 5.7<z<6.14, the transmission of both Ly{alpha} and Ly{beta} first increases with distance but then peaks at a distance of 5cMpc before declining. Finally, in the region 6.15<z<6.26, where the additional ionizing radiation from the quasar dominates, the monotonic increase in transmission with distance is reestablished. This result is interpreted to represent evidence that the transmission of the IGM at z~5.9 toward J0100+2802 results from the "local" ionizing radiation of galaxies that dominates over the much-reduced cosmic background.2023ApJ...950...66Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/950/66CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/MNRAS/435/1198 : z~6 QSOs CIV doublet absorption systems (D'Odorico+, 2013)J/ApJ/764/9 : High-z MgII absorption QSOs with FIRE. II. (Matejek+, 2013)J/ApJS/227/11 : PS1 z>5.6 quasars follow-up (Banados+, 2016)J/ApJ/863/92 : LAE cand. at z~5.7 in QSO J0148+0600 field (Becker+, 2018)J/ApJ/883/163 : OI abs. search in Keck and VLT sp. of 199 QSOs (Becker+, 2019)J/A+A/642/A150 : Quasars as standard candles. III. (Lusso+, 2020)J/ApJ/903/24 : Lya emitters and QSOs in COMSOS and EGS fields (Mukae+, 2020)J/ApJ/905/51 : X-SHOOTER/ALMA QSOs. I. NIR sp. (Schindler+, 2020)J/ApJ/923/223 : VLT/X-SHOOTER & Keck/ESI spectra of z~5 QSOs (Zhu+, 2021)J/ApJ/938/L14 : Early results from GLASS-JWST. II. Abell 2744 (Merlin+, 2022)J/ApJ/932/76 : Ly{beta} dark gaps in z<~6 QSOs spectra (Zhu+, 2022)J/ApJ/941/106 : X-SHOOTER/ALMA QSOs. II. BH masses (Farina+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/950/66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/950/66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/950/66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/950/66https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/950/66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/950/66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/950/66/table2 ([OIII]-emitter sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/950/66/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/950/66/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/950/66/table2?GETtext/xml+votable180.050000true15.0815928.0534670.0055555555555555566/2187https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/950/66?format=asciiInfrareddefaultJ/ApJ/950/66/table2[OIII]-emitter samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[31/20379] Sequential identifier (<[KLM2023] NNNNN> in Simbad)meta.id;meta.mainintRAJ2000[15/15.11] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[27.98/28.1] Declination (J2000)degpos.eq.dec;meta.mainz[5.33/6.93] Redshiftsrc.redshiftdoubleFlag[1/2] Reliability flag: confidence=2 (higher) or 1 (lower)meta.code.qualint