J/A+A/608/A139ivo://CDS.VizieR/J/A+A/608/A139doi:10.26093/cds/vizier.36080139CDSGronke M.2017-12-15T18:22:30Z2017-12-15T09:23:05ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyastronomical-modelsWe compare 237 Lyman-{alpha} (Ly{alpha}) spectra of the "MUSE-Wide survey" (Herenz et al., 2017, Cat. J/A+A/606/A12) to a suite of radiative transfer simulations consisting of a central luminous source within a concentric, moving shell of neutral gas, and dust. This six parameter shell-model has been used numerously in previous studies, however, on significantly smaller data-sets. We find that the shell-model can reproduce the observed spectral shape very well - better than the also common 'Gaussian-minus-Gaussian' model which we also fitted to the dataset. Specifically, we find that ~94% of the fits possess a goodness-of-fit value of p(chi^2^)>0.1. The large number of spectra allows us to robustly characterize the shell-model parameter range, and consequently, the spectral shapes typical for realistic spectra. We find that the vast majority of the Ly{alpha} spectral shapes require an outflow and only ~5% are well-fitted through an inflowing shell. In addition, we find ~46% of the spectra to be consistent with a neutral hydrogen column density <10^17^cm^-2^ -- suggestive of a non-negligible fraction of continuum leakers in the MUSE-Wide sample. Furthermore, we correlate the spectral against the Ly{alpha} halo properties against each other but do not find any strong correlation.2017A&A...608A.139Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/608/A139CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/606/A12 : MUSE-Wide survey: 831 emission line galaxies (Herenz+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/608/A139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/608/A139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/608/A139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/608/A139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/608/A139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/608/A139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/608/A139/sm-fits (*Shell-model parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A139/sm-fits?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A139/sm-fits?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A139/sm-fits?GETtext/xml+votable180.050000true53.06898-27.814610.0055555555555555566/35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/608/A139?format=asciidefaultJ/A+A/608/A139/sm-fits*Shell-model parametersPchi2p(chi^2) of the best fitmeta.notedoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMUSEMUSE UNIQUE IDmeta.idlongDv-1616th percentile of intrinsic shiftkm/sphys.veloc;arith.diffdoubleDv-50Intrinsic shiftkm/sphys.veloc;arith.diffdoubleDv-8484th percentile of intrinsic shiftkm/sphys.veloc;arith.diffdoublelogNHI-1616th percentile of shell column density (1)log(cm**-2)phys.columnDensitydoublelogNHI-50Shell column density (1)log(cm**-2)phys.columnDensitydoublelogNHI-8484th percentile of shell column density (1)log(cm**-2)phys.columnDensitydoublelogT-1616th percentile of effective temperature of shell (1)log(K)phys.temperature.effectivedoublelogT-50Effective temperature of shell (1)log(K)phys.temperature.effectivedoublelogT-8484th percentile of effective temperature of shell (1)log(K)phys.temperature.effectivedoublesigmai-1616th percentile of intrinsic width of Ly{alpha} linekm/sspect.line.eqWidthdoublesigmai-50Intrinsic width of Lya linekm/sspect.line.eqWidthdoublesigmai-8484th percentile of intrinsic width of Ly{alpha} linekm/sspect.line.eqWidthdoubletaud-1616th percentile of (absorbing) dust optical detphphys.absorption.opticalDepthdoubletaud-50(absorbing) dust optical detphphys.absorption.opticalDepthdoubletaud-8484th percentile of (absorbing) dust optical detphphys.absorption.opticalDepthdoublevexp-1616th percentile of expansion velocitykm/sphys.veloc.expansiondoublevexp-50Expansion velocity (2)km/sphys.veloc.expansiondoublevexp-8484th percentile of expansion velocitykm/sphys.veloc.expansiondouble_RAPositions from MUSE-Wide survey, Herenz et al., 2017, Cat. J/A+A/606/A12 (right ascension part)degpos.eq.ra;meta.main_DEPositions from MUSE-Wide survey, Herenz et al., 2017, Cat. J/A+A/606/A12 (declination part)degpos.eq.dec;meta.main