J/A+A/539/A64ivo://CDS.VizieR/J/A+A/539/A64doi:10.26093/cds/vizier.35390064CDSAlexander F.Preibisch T.2018-02-12T08:45:34Z2012-06-02T15:46:44ZCDS support team

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

cds-question@unistra.frstellar-associationspre-main-sequence-starsx-ray-sourcesThe physical origin of the strong magnetic activity in T Tauri stars and its relation to stellar rotation is not yet well-understood. We investigate the relation between the X-ray activity, rotation, and Rossby number for a sample of young stars in the ~3Myr old cluster IC 348. We use the data of four Chandra observations of IC 348 to derive the X-ray luminosities of the young stars. Basic stellar parameters and rotation rates are collected from the literature. This results in a sample of 82 X-ray detected stars with known rotation periods. We determine the Rossby numbers (i.e. the ratio of rotation period to convective turnover time) of 76 of these stars from stellar structure- and evolution-models for pre-main sequence stars.2012A&A...539A..64Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/539/A64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/122/866 : X-ray sources in IC 348 from Chandra (Preibisch+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/539/A64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/539/A64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/539/A64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/539/A64https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/539/A64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/539/A64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/539/A64/stars (Stellar parameters for the sample of stars in IC 348 (table2) and IC 348 members with X-ray emission upper limits (table3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/539/A64/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/539/A64/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/539/A64/stars?GETtext/xml+votable180.050000true56.10237532.06586110.0055555555555555566/1539https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/539/A64?format=asciiX-raydefaultJ/A+A/539/A64/starsStellar parameters for the sample of stars in IC 348 (table2) and IC 348 members with X-ray emission upper limits (table3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainLbolBolometric luminositysolLumphys.luminosityfloatSpTypeMK spectral typesrc.spTypecharTover? Convective turnover time {tau}_c_dtime;arith.difffloatnullablePerRotation period P_rot_dtime.periodfloatClass[I/ ] YSO class (only in table2)src.classcharl_LXLimit flag on LXmeta.code.errorcharLXX-ray luminosity (erg/s)1e-07Wphys.luminosity;em.X-raydouble