J/A+A/621/A107ivo://CDS.VizieR/J/A+A/621/A107doi:10.26093/cds/vizier.36210107CDSHerenz E.C.Wisotzki L.Saust R.Kerutt J.Urrutia T.Diener C.,Schmidt K.B.Marino R.A.de la Vieuville G.Boogaard L.Schaye J.,Guiderdoni B.Richard J.Bacon R.2020-08-25T13:27:49Z2019-01-17T08:35:53ZCDS support team

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

cds-question@unistra.frsurveysgalaxiescatalogsWe investigate the Lyman{alpha} emitter (LAE) luminosity function (LF) within the redshift range 2.9<=z<=6 from the first instalment of the blind integral field spectroscopic MUSE-Wide survey. This initial part of the survey probes a region of 22.2arcmin^2^ in the CANDELS/GOODS-S field (24 MUSE pointings with 1h integrations). The dataset provided us with 237 LAEs from which we construct the LAE LF in the luminosity range 42.2<=logL_Ly{alpha}_[erg/s]<=43.5 within a volume of 2.3x10^5^Mpc^3^. For the LF construction we utilise three different non-parametric estimators: the classical 1/V_max_ method, the C^-^ method, and an improved binned estimator for the differential LF. All three methods deliver consistent results, with the cumulative LAE LF being {Phi}(logL_Ly{alpha}_[erg/s]=43.5)~=3x10^-6^Mpc^-3^ and {Phi}(logL_Ly{alpha}_[erg/s]=42.2)~=2x10^-3^Mpc^-3^ towards the bright and faint end of our survey, respectively. By employing a non-parametric statistical test, and by comparing the full sample to subsamples in redshift bins, we find no supporting evidence for an evolving LAE LF over the probed redshift and luminosity range. Using a parametric maximum-likelihood technique we determine the best-fitting Schechter function parameters {alpha}=-1.84^+0.42^_-0.41_ and logL^*^[erg/s]=42.2^+0.22^_-0.16_ with the corresponding normalisation log{phi}^*^[Mpc^-3^]=-2.71. However, the dynamic range in Ly{alpha} luminosities probed by MUSE-Wide leads to a strong degeneracy between {alpha} and L^*^. Moreover, we find that a power-law parametrisation of the LF appears to be less consistent with the data compared to the Schechter function, even so when not excluding the X-Ray identified AGN from the sample. When correcting for completeness in the LAE LF determinations, we take into account that LAEs exhibit diffuse extended low surface brightness halos. We compare the resulting LF to one obtained by applying a correction assuming compact point-like emission. We find that the standard correction underestimates the LAE LF at the faint end of our survey by a factor of 2.5. Contrasting our results to the literature we find that at logL_Ly{alpha}_[erg/s]~<42.5 previous LAE LF determinations from narrow-band surveys appear to be affected by a similar bias.2019A&A...621A.107Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/621/A107CatalogResearchIsServedByTAP 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/621/A107https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/621/A107http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/621/A107https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/621/A107https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/621/A107http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/621/A107GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/621/A107/sample (Lyman alpha emitter galaxy catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/621/A107/sample?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/621/A107/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/621/A107/sample?GETtext/xml+votable180.050000true53.06898-27.814610.0055555555555555566/35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/621/A107?format=asciidefaultJ/A+A/621/A107/sampleLyman alpha emitter galaxy cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMW-IDMUSE-Wide object identifier from the Herenz et al. (2017, Cat. J/A+A/606/A12) cataloguemeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshift of the galaxy (1)src.redshiftdoubleSNSignificance of the line detection (2)stat.fit.goodnessdoubleConfConfidence of the detection (3)stat.fit.goodnessintRKronKron radius determined in a synthesized narrow-band image of Lyman alpha line (3)arcsecphys.angSize;srcdoubleF3KroncorrEmission line flux extracted in a 3*RKron radius aperture (in erg/s/cm^2^) (4)mW.m**-2phot.flux;spect.linedoublee_F3KroncorrStatistical error on the flux measurementmW.m**-2stat.errordoubleSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/621/A107/listList of fits filesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fits