J/A+A/580/A139ivo://CDS.VizieR/J/A+A/580/A139doi:10.26093/cds/vizier.35800139CDSHartoog O.E.Malesani D.Fynbo J.P.U.Goto T.Kruhler T.,Vreeswijk P.M.De Cia A.Xu D.Moller P.Covino S.D'Elia V.,Flores H.Goldoni P.Hjorth J.Jakobsson P.Krogager J.-K.Kaper L.,Ledoux C.Levan A.J.Milvang-Jensen B.Sollerman J.Sparre M.,Tagliaferri G.Tanvir N.R.de Ugarte Postigo A.Vergani S.D.,Wiersema K.Datson J.Salinas R.Mikkelsen K.Aghanim N.2015-12-30T09:05:53Z2015-08-20T09:19:02ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomyinfrared-astronomyspectroscopyThe reionisation of the Universe is a process that is thought to have ended around z~6, as inferred from spectroscopy of distant bright background sources, such as quasars (QSO) and gamma-ray burst (GRB) afterglows. Furthermore, spectroscopy of a GRB afterglow provides insight in its host galaxy, which is often too dim and distant to study otherwise. For the Swift GRB 130606A at z=5.913 we have obtained a high S/N spectrum covering the full optical and near-IR wavelength region at intermediate spectral resolution with VLT/X-Shooter. We aim to measure the degree of ionisation of the intergalactic medium (IGM) between z=5.02-5.84 and to study the chemical abundance pattern and dust content of its host galaxy. We estimated the UV continuum of the GRB afterglow using a power-law extrapolation, then measured the flux decrement due to absorption at Ly{alpha},{beta}, and {gamma} wavelength regions. Furthermore, we fitted the shape of the red damping wing of Ly{alpha}. The hydrogen and metal absorption lines formed in the host galaxy were fitted with Voigt profiles to obtain column densities. We investigated whether ionisation corrections needed to be applied.2015A&A...580A.139Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/580/A139CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/580/A139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/580/A139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/580/A139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/580/A139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/580/A139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/580/A139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapGamma-rayInfraredOpticaldefaultJ/A+A/580/A139/listList of fits spectraspShow the spectrummeta.ref.urlcharfitsDownload the FITS filemeta.ref.urlcharTitleTitle of the filemeta.title;meta.filecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintNspNumber of spectra in the file (1)meta.numberintObsObservation date (2013-06-07)stime.epoch;obsnullablelam.min[533/1066] Lower value of wavelength intervalnminstr.bandwidthfloatlam.max[1019/2480] Upper value of wavelength intervalnminstr.bandwidthfloatdlam[0.02/0.05] Spectral resolutionnmspect.resolutionfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitschar