J/AJ/118/2409ivo://CDS.VizieR/J/AJ/118/2409doi:10.26093/cds/vizier.51182409CDSDolan C.J.Mathieu R.D.2023-04-06T16:50:35Z2001-09-24T10:31:10ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsinfrared-photometryvisible-astronomyphotometryccd-photometryWe have found 72 premain-sequence (PMS) stars near the center of the {lambda} Orionis star-forming region by spectroscopically testing a magnitude-limited sample for the presence of lithium {lambda}6708 absorption, a diagnostic of youth. All of these stars show large lithium equivalent widths and radial velocities consistent with Orion membership, but only two were discovered previously via H{alpha} or X-ray surveys.1999AJ....118.2409Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/118/2409CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/121/2124 : Paper II (Dolan+, 2001)I/252 : The USNO-A2.0 Catalogue (Monet+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/118/2409https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/118/2409http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/118/2409https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/118/2409https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/118/2409http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/118/2409GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/118/2409/table1 (Pre-main-sequence stellar data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/118/2409/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/118/2409/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/118/2409/table1?GETtext/xml+votable180.050000true83.4468759.92743060.0055555555555555566/23717 23728https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/118/2409?format=asciiOpticalInfrareddefaultJ/AJ/118/2409/table1Pre-main-sequence stellar datan_EWHa[c] Note on EWHameta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[DM99][1/72] The {lambda} Ori running numbermeta.id;meta.mainintn_[DM99][aef] Individual note (1)meta.notecharPapIIShow the improved values from Paper IImeta.refcharUSNOUSNO number (2)meta.id;srcintRAJ2000Right Ascension from USNO-A 2.0 catalog (J2000)pos.eq.ra;meta.mainDEJ2000Declination from USNO-A 2.0 catalog (J2000)pos.eq.dec;meta.mainVmagThe V band magnitudemagphot.mag;em.opt.VfloatV-RThe (V-R) colormagphot.color;em.opt.V;em.opt.RfloatR-IThe (R-I) colormagphot.color;em.opt.R;em.opt.IfloatEWLi? Equivalent width of Li (3)0.1nmspect.line.eqWidthfloatnullablen_EWLi[c] Note on EWLi (4)meta.notecharEWHa? Equivalent width of H{alpha} (5)0.1nmspect.line.eqWidthfloatnullableRVelStellar radial velocitykm/sphys.veloc;pos.heliocentricfloatn_RVel[d] Flag on RVel (6)meta.notecharNobs? Number of observationsmeta.numberintnullable