J/ApJS/165/256ivo://CDS.VizieR/J/ApJS/165/256doi:10.26093/cds/vizier.21650256CDSHerczeg G.J.Linsky J.L.Walter F.M.Gahm G.F.Johns-Krull C.M.2008-03-18T20:13:59Z2008-03-18T21:12:29ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsspectroscopyWe survey fluorescent H2 emission in HST STIS spectra of the classical T Tauri stars (CTTSs) TW Hya, DF Tau, RU Lupi, T Tau, and DG Tau, and the weak-lined T Tauri star (WTTS) V836 Tau. From each of those sources we detect between 41 and 209 narrow H_2_ emission lines, most of which are pumped by strong Ly{alpha} emission. H_2_ emission is not detected from the WTTS V410 Tau. The fluorescent H_2_ emission appears to be common to circumstellar environments around all CTTSs, but high spectral and spatial resolution STIS observations reveal diverse phenomenon.2006ApJS..165..256Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/165/256CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/165/256https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/165/256http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/165/256https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/165/256https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/165/256http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/165/256GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJS/165/256/table5Lyman-band H_2_ lines, listed by ProgressionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransTransition descriptionmeta.note;phys.atmol.transProb;phys.atmol.transitionIDLine or flux type identification (1)meta.id;spect.linecharWave? Calculated wavelength in Angstroms0.1nmem.wl;meta.modelleddoublenullableBranch? Branching ratio (2)phys.atmol.branchingRatiofloatnullableTWHya? Flux from TW Hya flux (3)aW.m**-2phot.fluxfloatnullableDFTau? Flux from DF Tau in 0.5"x0.5" aperture (3)aW.m**-2phot.fluxfloatnullableDFTau2? Flux from DF Tau in 0.2"x0.06" aperture (3)aW.m**-2phot.fluxfloatnullableRULup? Flux from RU Lup (3)aW.m**-2phot.fluxfloatnullableTTau? Flux from T Tau (3)aW.m**-2phot.fluxfloatnullableDGTau? Flux from DG Tau (3)aW.m**-2phot.fluxfloatnullableV836Tau? Flux from V836 Tau (3)aW.m**-2phot.fluxfloatnullable