J/ApJ/834/142ivo://CDS.VizieR/J/ApJ/834/142doi:10.26093/cds/vizier.18340142CDSKounkel M.Hartmann L.Loinard L.Ortiz-Leon G.N.Mioduszewski A.J.,Rodriguez L.F.Dzib S.A.Torres R.M.Pech G.Galli P.A.B.Rivera J.L.,Boden A.F.Evans II N.J.Briceno C.Tobin J.J.2019-06-05T13:52:01Z2017-08-10T13:40:59ZCDS support team

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

cds-question@unistra.frmolecular-cloudsradio-sourcesvisible-astronomytrigonometric-parallaxstellar-distanceproper-motionsWe present the results of the Gould's Belt Distances Survey of young star-forming regions toward the Orion Molecular Cloud Complex. We detected 36 young stellar objects (YSOs) with the Very Large Baseline Array, 27 of which have been observed in at least three epochs over the course of two years. At least half of these YSOs belong to multiple systems. We obtained parallax and proper motions toward these stars to study the structure and kinematics of the Complex. We measured a distance of 388+/-5pc toward the Orion Nebula Cluster, 428+/-10pc toward the southern portion L1641, 388+/-10pc toward NGC 2068, and roughly ~420pc toward NGC 2024. Finally, we observed a strong degree of plasma radio scattering toward {lambda} Ori.2017ApJ...834..142Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/834/142CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)J/A+A/337/183 : V1046 Ori uvby photometry and radial velocities (Bolton+ 1998)J/AJ/123/387 : VRI photom. of {lambda} Ori star-forming region (Dolan+, 2002)J/A+A/458/461 : Binary stars in the Orion Nebula Cluster (Koehler+, 2006)J/other/A+ARV/17.251 : Stars observed with Doppler imaging (Strassmeier, 2009)J/ApJ/722/1092 : Optical photometry of the ONC. II. (Da Rio+, 2010)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/AJ/144/192 : Spitzer survey of Orion A & B. I. YSO catalog (Megeath+, 2012)J/ApJ/753/149 : YSOVAR: 6 eclipsing binaries in Orion (Morales-Calderon+, 2012)J/ApJ/764/114 : BVRI photometry of stars in Orion A (Hsu+, 2013)J/A+A/564/A29 : Optical and near-infrared photometry in Orion A (Bouy+, 2014)J/ApJ/790/49 : Gould's Belt VLA survey. III. Orion region (Kounkel+, 2014)J/ApJ/786/29 : Catalog of distances to molecular clouds (Schlafly+, 2014)J/ApJ/818/59 : IN-SYNC. IV. YSOs in Orion A (Da Rio+, 2016)J/ApJ/821/8 : Spectrosc. binary population of ONC & NGC2264 (Kounkel+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/834/142https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/834/142http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/834/142https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/834/142https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/834/142http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/834/142GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/834/142/table4 (Positions of sources identified in at least two epochs or with a single >5{sigma} detection)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/834/142/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/834/142/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/834/142/table4?GETtext/xml+votable180.050000true83.8717552875-5.095593723060.0055555555555555566/21425 21428 21430 21436 21438 21439 22804 22805 22851 22854 22855 22873 22876 23560 237173.313034785154005e-24 3.313034785154005e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/834/142?format=asciiRadioOpticaldefaultJ/ApJ/834/142/table4Positions of sources identified in at least two epochs or with a single >5{sigma} detectionSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNNumber of epochs for this sourcemeta.numberintnullableVLBA[1/165] VLBA index numbermeta.id;meta.mainintprimaryYSO?[ny-] A YSO source? (- = unconfirmed)meta.codecharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000[0/1] Uncertainty in RASmasstat.error;pos.eq.rafloatDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000[0.002/1.3] Uncertainty in DEsmasstat.error;pos.eq.decfloatJDJulian Date of the observationdtime.epochintFlux[0.09/337.7] VLBA flux density at 5GHzmJyphot.flux.density;em.radio.3-6GHzfloate_Flux[0.03/1.8] Uncertainty in FluxmJystat.error;phot.fluxfloatrms[0.004/0.8] Field rmsmJystat.stdev;instr.det.noise;obs.fieldfloatPMDisplay the distances and proper motion solutions (table 5) if anymeta.ref.urlcharJ/ApJ/834/142/table5Distance and proper motion solutionsRegRegionobs.fieldcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVLBA[4/148] VLBA index numbermeta.id;meta.mainintVLBA2? 2nd VLBA numbermeta.id.associntnullablef_VLBAFlag(s) on VLBA (1)meta.codecharNameCommon namemeta.idcharSpTMK spectral typesrc.spTypecharr_SpTReference for SpT (2)meta.ref;pos.framecharPlx[1.8/3.4] Parallaxmaspos.parallaxfloate_Plx[0.02/0.6] Plx uncertaintymasstat.error;pos.parallaxfloatDist[302/536] Distancepcpos.distance;pos.heliocentricinte_Dist[4/113] Dist uncertaintypcstat.errorintpmRA[-7.3/4.9] Proper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRA[0.03/0.7] pmRA uncertaintymas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-3.8/7] Proper motion along DECmas/yrpos.pm;pos.eq.decfloate_pmDE[0.07/1.4] pmDE uncertaintymas/yrstat.error;pos.pm;pos.eq.decfloat