J/A+A/587/A78ivo://CDS.VizieR/J/A+A/587/A78doi:10.26093/cds/vizier.35870078CDSHerenz E.C.Gruyters P.Orlitova I.Hayes M.Ostlin G.Cannon J.M.,Roth M.Bik A.Pardy S.Oti-Floranes H.Mas-Hesse J.M.Adamo A.,Atek H.Duval F.Guaita L.Kunth D.Laursen P.Melinder J.,Puschnig J.Rivera-Thorsen T.E.Schaerer D.Verhamme A.2016-02-19T06:28:18Z2016-02-19T07:27:16ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyvisible-astronomyWe present integral field spectroscopic observations with the Potsdam Multi-Aperture Spectrophotometer of all 14 galaxies in the z~0.1 Lyman Alpha Reference Sample (LARS). We produce 2D line-of-sight velocity maps and velocity dispersion maps from the Balmer {alpha} (H{alpha}) emission in our data cubes. These maps trace the spectral and spatial properties of the LARS galaxies' intrinsic Ly{alpha} radiation field. We show our kinematic maps that are spatially registered onto the Hubble Space Telescope H{alpha} and Lyman{alpha} (Ly{alpha}) images. We can conjecture a causal connection between spatially resolved H{alpha} kinematics and Ly{alpha} photometry for individual galaxies. However, no general trend can be established for the whole sample. Furthermore, we compute the intrinsic velocity dispersion {sigma}_0_, the shearing velocity v_shear_, and the v_shear_/{sigma}_0_ ratio from our kinematic maps. In general LARS galaxies are characterised by high intrinsic velocity dispersions (54km/s median) and low shearing velocities (65km/s median). The v_shear_/{sigma}_0_ values range from 0.5 to 3.2 with an average of 1.5. It is noteworthy that five galaxies of the sample are dispersion-dominated systems with v_shear_/{sigma}_0_<1, and are thus kinematically similar to turbulent star-forming galaxies seen at high redshift. When linking our kinematical statistics to the global LARS Ly{alpha} properties, we find that dispersion-dominated systems show higher Ly{alpha} equivalent widths and higher Ly{alpha} escape fractions than systems with v_shear_/{sigma}_0_>1. Our result indicates that turbulence in actively star-forming systems is causally connected to interstellar medium conditions that favour an escape of Ly{alpha} radiation.2016A&A...587A..78Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/587/A78CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/587/A78https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/587/A78http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/587/A78https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/587/A78https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/587/A78http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/587/A78GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/587/A78/list (List of fits files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/587/A78/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/587/A78/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/587/A78/list?GETtext/xml+votable180.050000true202.1825643.930360.0055555555555555566/5026 5814 7259 7272 9923 10393 10404 11009 11115 11782 11908 18302 26095 26359https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/587/A78?format=asciiOpticaldefaultJ/A+A/587/A78/listList of fits filesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000? Right ascension of image center (J2000)degpos.eq.ra;meta.mainnullableDEJ2000? Declination of image center (J2000)degpos.eq.dec;meta.mainnullableNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along X-axismeta.numberintNz? Number of slices for data cubesmeta.numberintnullableblambda? Lower value of wavelength interval0.1nmem.wlfloatnullableBlambda? Upper value of wavelength interval0.1nmem.wlfloatnullabledlambda? Wavelength resolution0.1nmspect.resolutiondoublenullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName if the fits file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.title;meta.file