J/ApJ/865/73ivo://CDS.VizieR/J/ApJ/865/73doi:10.26093/cds/vizier.18650073CDSOrtiz-Leon G.N.Loinard L.Dzib S.A.Galli P.A.B.Kounkel M.,Mioduszewski A.J.Rodriguez L.F.Torres R.M.Hartmann L.Boden A.F.,Evans N.J.Briceno C.Tobin J.J.2020-03-26T14:18:40Z2019-09-30T15:38:01ZCDS support team

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

cds-question@unistra.frproper-motionsvisible-astronomytrigonometric-parallaxradial-velocityinfrared-sourcesopen-star-clustersstar-forming-regionsWe derive the distance and structure of the Perseus molecular cloud by combining trigonometric parallaxes from Very Long Baseline Array (VLBA) observations, taken as part of the GOBELINS survey and Gaia Data Release 2. Based on our VLBA astrometry, we obtain a distance of 321+/-10pc for IC 348. This is fully consistent with the mean distance of 320+/-26 measured by Gaia. The VLBA observations toward NGC 1333 are insufficient to claim a successful distance measurement to this cluster. Gaia parallaxes, on the other hand, yield a mean distance of 293+/-22pc. Hence, the distance along the line of sight between the eastern and western edges of the cloud is ~30pc, which is significantly smaller than previously inferred. We use Gaia proper motions and published radial velocities to derive the spatial velocities of a selected sample of stars. The average velocity vectors with respect to the LSR are (u,v,w)=(-6.1+/-1.6, 6.8+/-1.1, -0.9+/-1.2) and (-6.4+/-1.0, 2.1+/-1.4, -2.4+/-1.0)km/s for IC 348 and NGC 1333, respectively. Finally, our analysis of the kinematics of the stars has shown that there is no clear evidence of expansion, contraction, or rotational motions within the clusters.2018ApJ...865...73Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/865/73CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/197 : ISM towards IC 348 and Per OB2 (Cernis, 1993)I/347 : 1.33 billion stars distances in Gaia DR2 (Bailer-Jones+, 2018)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)J/AJ/135/2496 : Near-IR survey of Class I protostars (Connelley+, 2008)J/ApJ/674/336 : Spitzer observations of NGC 1333 (Gutermuth+, 2008)J/ApJ/692/973 : Protostars in Perseus, Serpens and Ophiuchus (Enoch+, 2009)J/ApJ/710/1247 : Dense cores in Gould Belt clouds (Sadavoy+, 2010)J/A+A/539/A64 : X-ray data for IC 348 young stars (Alexander+, 2012)J/ApJ/794/125 : IN-SYNC. I. APOGEE stellar parameters (Cottaar+, 2014)J/ApJ/786/29 : Catalog of distances to molecular clouds (Schlafly+, 2014)J/ApJ/807/27 : IN-SYNC. III. RVs of IC348 stars (Cottaar+, 2015)J/ApJS/220/11 : SEDs of Spitzer YSOs in the Gould Belt (Dunham+, 2015)J/ApJ/799/136 : IN-SYNC. II. Candidate young stars in NGC 1333 (Foster+, 2015)J/AJ/150/40 : The Spitzer c2d survey of clouds. XII. Perseus (Young+, 2015)J/ApJ/818/116 : Gould's Belt VLA survey. V. Perseus region (Pech+, 2016)J/ApJ/818/73 : Protostars in the Perseus molecular cloud (Tobin+, 2016)J/ApJ/834/142 : Gould's Belt Distances Survey. II. OMC (Kounkel+, 2017)J/ApJ/859/33 : GOBELINS. IV. VLBA obs. of Taurus (Galli+, 2018)J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/865/73https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/865/73http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/865/73https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/865/73https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/865/73http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/865/73GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/865/73/stars (Astrometric parameters and radial velocities and spatial velocities of individual sources in IC 348 and NGC 1333 (tables 7 and 8))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/865/73/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/865/73/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/865/73/stars?GETtext/xml+votable180.050000true52.15212531.32469440.0055555555555555566/859 862 1539https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/865/73?format=asciiOpticalInfrareddefaultJ/ApJ/865/73/starsAstrometric parameters and radial velocities and spatial velocities of individual sources in IC 348 and NGC 1333 (tables 7 and 8)X[-288.2/-254.6] X positionpcpos.distance;pos.cartesian.xfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (JHHMMSSss+DDMMSSs)meta.id;meta.maincharplx[2.4/4] Star parallaxmaspos.parallax.trigfloate_plx[0.04/1.5] Error in plxmasstat.error;pos.parallaxfloatpmRA[2.7/10.2] Gaia proper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRA[0.07/2.8] Error in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-11.3/-4.8] Gaia proper motion in DECmas/yrpos.pm;pos.eq.decfloate_pmDE[0.04/1.4] Error in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatRVel[12.3/28.7] Radial Velocitykm/sphys.veloc;pos.heliocentricfloate_RVel[0/2] Error in RVelkm/sstat.error;spect.dopplerVelocfloatUlsr[-28.3/-14.3] LSR velocity in x-directionkm/sspect.dopplerVeloc;pos.lsrfloatVlsr[-15.1/-2.3] LSR velocity in y-directionkm/sphys.veloc;pos.lsrfloatWlsr[-13.3/-6] LSR velocity in z-directionkm/sspect.dopplerVeloc;pos.lsrfloatu[-17.2/-3.2] Peculiar velocity in x-directionkm/sphys.velocfloatv[-2.1/10.7] Peculiar velocity in y-directionkm/sphys.velocfloatw[-6.1/1.3] Peculiar velocity in z-directionkm/sphys.velocfloatY[99.9/103.1] Y positionpcpos.distance;pos.cartesian.yfloatZ[-103.7/-96.8] Z positionpcpos.distance;pos.cartesian.zfloatGaiaDisplay the Gaia DR2 data within 1"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from 2MASS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from 2MASS names (declination part)degpos.eq.dec;meta.main