J/ApJ/911/138ivo://CDS.VizieR/J/ApJ/911/138doi:10.26093/cds/vizier.19110138CDSNofi L.A.Johns-Krull C.M.Lopez-Valdivia R.Biddle L.Carvalho A.S.,Huber D.Jaffe D.Llama J.Mace G.Prato L.Skiff B.Sokal K.R.,Sullivan K.Tayar J.2022-11-16T06:08:06Z2022-11-15T09:16:41ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsinfrared-astronomyspectroscopyvisible-astronomystellar-radiieffective-temperatureThe projected stellar rotational velocity (vsini) is critical for our understanding of processes related to the evolution of angular momentum in pre-main-sequence stars. We present vsini measurements of high-resolution infrared and optical spectroscopy for 70 pre-main-sequence stars in the Taurus-Auriga star-forming region, in addition to effective temperatures measured from line-depth ratios, as well as stellar rotation periods determined from optical photometry. From the literature, we identified the stars in our sample that show evidence of residing in circumstellar disks or multiple systems. The comparison of infrared vsini measurements calculated using two techniques shows a residual scatter of ~1.8km/s, defining a typical error floor for the vsini of pre-main-sequence stars from infrared spectra. A comparison of the vsini distributions of stars with and without companions shows that binaries/multiples typically have a higher measured vsini, which may be caused by contamination by companion lines, shorter disk lifetimes in binary systems, or tidal interactions in hierarchical triples. A comparison of optical and infrared vsini values shows no significant difference regardless of whether the star has a disk or not, indicating that CO contamination from the disk does not impact vsini measurements above the typical ~1.8km/s error floor of our measurements. Finally, we observe a lack of a correlation between the vsini, presence of a disk, and H-R diagram position, which indicates a complex interplay between stellar rotation and evolution of pre-main-sequence stars.2021ApJ...911..138Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/911/138CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)J/A+AS/101/485 : Multisite UBVRI photometry in Tau-Aur cloud (Bouvier+ 1993)J/ApJS/95/535 : Infrared CO line list for X1{Sigma}+state (Goorvitch, 1994)J/A+A/299/89 : COYOTES II (Bouvier+, 1995)J/A+AS/145/187 : uvby-{beta} photometry of WTTS (Chavarria-K+, 2000)J/A+A/396/513 : Stellar Rotation in the Orion Nebula Cluster (Herbst+, 2002)J/ApJ/601/979 : vsini of Orion low-mass stars (Wolff+, 2004)J/A+A/430/1005 : VRIH{alpha} photometry of NGC 2264 variables (Lamm+, 2005)J/AJ/129/363 : Sp. in Orion Nebula Cluster (Sicilia-Aguilar+, 2005)J/A+A/450/681 : Companions to close sp. binaries (Tokovinin+, 2006)J/A+A/467/785 : SuperWASP/ROSAT periodic variable stars (Norton+, 2007)J/A+A/479/827 : UBVR LCs of weak-line T Tauri stars (Grankin+, 2008)J/ApJ/704/531 : The coevality of young binary systems (Kraus+, 2009)J/ApJ/745/56 : Upper Sco members rotational velocities (Dahm+, 2012)J/ApJ/745/19 : Binary systems in Taurus-Auriga (Kraus+, 2012)J/ApJ/745/119 : Close companions to young stars. I. (Nguyen+, 2012)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)J/ApJ/786/97 : Photospheric properties of T Tauri stars (Herczeg+, 2014)J/MNRAS/468/931 : Orion Nebula Cluster members VRI photometry (Messina+, 2017)J/MNRAS/480/3739 : Extended main sequence turnoff in open cl. (Bastian+, 2018)J/AJ/155/225 : M dwarf stars rot. broadening measurements (Kesseli+, 2018)J/AJ/156/271 : The stellar membership of the Taurus SFR (Luhman, 2018)J/A+A/615/A76 : Spectroscopic param. of stars (SPECIES). I. (Soto+, 2018)J/AJ/156/275 : Rot. evolution of young, binary M dwarfs (Stauffer+, 2018)J/AJ/158/54 : New Taurus members (Esplin+, 2019)J/ApJ/879/105 : Eff. temperatures of low-mass stars (Lopez-Valdivia+, 2019)J/AJ/159/273 : Taurus members & nonmembers with K2 data (Rebull+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/911/138https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/911/138http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/911/138https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/911/138https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/911/138http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/911/138GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/911/138/table1 (Stellar properties of pre-main sequence stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/911/138/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/911/138/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/911/138/table1?GETtext/xml+votable180.050000true68.7291724.481390.0055555555555555565/270 6/336 342 377 1029 1031 1048 1050-1054 1061 1073-1075 1111 1114 1124 1159 1168 1170-1171 22555 23543 23548-23549 23551 24201 24203 24300https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/911/138?format=asciiOpticalInfrareddefaultJ/ApJ/911/138/table1Stellar properties of pre-main sequence starsvsiniIR[4/50]? Infrared vsini (5)km/sphys.veloc.rotat;em.IRfloatnullablee_vsiniIR[1.7/3.4]? Infrared vsini uncertaintykm/sstat.errorfloatnullablel_vsiniOpLimit flag on vsini-opmeta.code.errorcharvsiniOp[7/50]? Optical vsinikm/sphys.veloc.rotat;em.optfloatnullablee_vsiniOp[0.4/5.1]? Optical vsini uncertaintykm/sstat.errorfloatnullablevsini[4/83]? Published vsini (6)km/sphys.veloc.rotatfloatnullablee_vsini[0.04/4]? Published vsini uncertaintykm/sstat.error;phys.veloc.rotatfloatnullableProt[0.7/15.7]? Stellar rotation perioddtime.periodfloatnullablee_Prot[0.02/0.1]? Period uncertaintydstat.errorfloatnullabler_Prot[1/8]? Period reference (7)meta.ref;pos.frameintnullablel_RsiniLimit flag on Rsinimeta.code.errorcharRsini[0.7/2.1]? Lower limit stellar radiussolRadphys.size.radius;stat.minfloatnullablee_Rsini[0.05/0.5]? Rsini uncertaintysolRadstat.errorfloatnullableClass? Classification (8)meta.code.classcharr_Class[1/4]? Classification reference (9)meta.ref;pos.frameintnullableSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (1)meta.id;meta.maincharn_NameFlag on name (2)meta.notecharRAJ2000[4/5] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[14/30] Degree of Declination (J2000)pos.eq.dec;meta.mainKmag[5.3/11.6]? K-band apparent magnitudephot.mag;em.IR.KfloatnullableNir[3/54] Number of infrared observationsmeta.numberintNop[1/43]? Number of optical observationsmeta.numberintnullableMultMultiplicity (3)meta.code.multipcharTeff[3100/4900]? Effective temperature (4)Kphys.temperature.effectiveintnullablel_vsiniIRLimit flag on vsini-IRmeta.code.errorchar