J/ApJ/751/29ivo://CDS.VizieR/J/ApJ/751/29doi:10.26093/cds/vizier.17510029CDSYamada T.Matsuda Y.Kousai K.Hayashino T.Morimoto N.Umemura M.2017-12-07T07:27:32Z2014-01-29T09:44:25ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyredshiftedspectroscopyapparent-magnitudeWe present the results of the observations of the Ly{alpha} line profiles of 91 emission-line galaxies at z=3.1 with a spectral resolution of {lambda}/{delta}{lambda}(FWHM){approx}1700 or 180km/s. A significant fraction of ~50% of the observed objects show the characteristic double peaks in their Ly{alpha} profile. The red peak is much stronger than the blue one for most of the cases. The red peaks themselves also show weak but significant asymmetry and their widths are correlated with the velocity separation of the red and the blue peaks. This implies that the peaks are not isolated multiple components with different velocities but parts of a single line that are modified by the absorption and/or scattering by the associated neutral hydrogen gas. The characteristic profile can be naturally explained by scattering in the expanding shell of the neutral hydrogen surrounding the Ly{alpha} emitting region while the attenuation by the intergalactic medium should also be considered. Our results suggest that the star formation in these Ly{alpha} emitters are dominated by young burst-like events that produce the intrinsic Ly{alpha} emission as well as the gas outflow.2012ApJ...751...29Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/751/29CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/744/110 : LAE galaxies between 2.1=<z<=3.1 (Ciardullo+, 2012)J/ApJ/743/9 : z=3.1 LAEs morphological properties (Gronwall+, 2011)J/ApJ/736/31 : HETDEX pilot survey. II. 1.9<z<3.8 LAEs (Blanc+, 2011)J/ApJ/705/639 : Sizes of Lyman alpha emitters at z=3.1 (Bond+, 2009)J/A+A/498/13 : Lyman-{alpha} emitters from redshifts z~2-3 (Nilsson+, 2009)J/ApJS/176/301 : Subaru/XMM-Newton deep survey IV. (SXDS) (Ouchi+, 2008)J/PASJ/58/313 : Ly{alpha} emitters in the SUBARU Deep Field (Shimasaku+, 2006)J/PASJ/57/165 : Ly{alpha} emitters in the SUBARU Deep Field (Taniguchi+, 2005)J/PASJ/57/881 : Imaging of high-redshift Lyman alpha emitters (Yamada+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/751/29https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/751/29http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/751/29https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/751/29https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/751/29http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/751/29GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/751/29/table1 (Summary of the observed Lyman{alpha} emitters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/751/29/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/751/29/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/751/29/table1?GETtext/xml+votable180.050000true334.2091670.4638890.0055555555555555566/19033 190363.9603780926802294e-19 4.0221274315046737e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/751/29?format=asciiOpticaldefaultJ/ApJ/751/29/table1Summary of the observed Lyman{alpha} emittersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLAEGalaxy identification (JHHMMSS.s+DDMMSS); <[YMK2012] LAE JHHMMSS.s+DDMMSS> in Simbadmeta.id;meta.maincharze[3/3.2] Redshift measured by the peak of the strongest emission-line componentsrc.redshift;pos.heliocentricfloatFWHM[19/1998]? FWHM of the strongest component after correction for the instrumental profile (1)km/sspect.line.widthfloatnullablelam1[4928/5006] The central wavelength of the red peak in the multiple-component Gaussian fitting0.1nmem.wl.central;stat.maxfloatlam2[4923/4992]? The central wavelength of the blue peak in the multiple-component Gaussian fitting0.1nmem.wl.central;stat.maxfloatnullableu_lam2Uncertainty flag on lam2meta.code.errorcharlam0[4928/5001] The central wavelength of peak in the single-component Gaussian fitting0.1nmem.wl.central;stat.maxfloatNBauto[22.4/25.6] AB magnitude in the NB497 narrowband filter (MAG_AUTO)magphot.mag;em.opt.BfloatNBap[22.4/25.7]? AB aperture magnitude in the NB497 narrowband filter (2)magphot.mag;em.opt.BfloatnullableBVap[23.4/29]? Effectively averaged AB aperture magnitude of the B and the V band (2)magphot.mag;em.optfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from LAE names (right ascension part)degpos.eq.ra;meta.main_DEPosition from LAE names (declination part)degpos.eq.dec;meta.main