J/ApJ/936/23ivo://CDS.VizieR/J/ApJ/936/23doi:10.26093/cds/vizier.19360023CDSWang X.-L.Fang M.Gao YuZhang H.-X.Herczeg G.J.Ma H.-J.Chen En,Zhou X.-Y.2025-08-20T20:08:31Z2024-07-02T07:49:03ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsstar-forming-regionspre-main-sequence-starsproper-motionsvisible-astronomytrigonometric-parallaxIdentifying the young optically visible population in a star-forming region is essential for fully understanding the star formation event. In this paper, we identify 211 candidate members of the Perseus molecular cloud based on Gaia astrometry. We use LAMOST spectra to confirm that 51 of these candidates are new members, bringing the total census of known members to 856. The newly confirmed members are less extincted than previously known members. Two new stellar aggregates are identified in our updated census. With the updated member list, we obtain a statistically significant distance gradient of 4.84pc/deg from west to east. Distances and extinction corrected color-magnitude diagrams indicate that NGC1333 is significantly younger than IC348 and the remaining cloud regions. The disk fraction in NGC1333 is higher than elsewhere, consistent with its youngest age. The star formation scenario in the Perseus molecular cloud is investigated and the bulk motion of the distributed population is consistent with the cloud being swept away by the Per-Tau Shell.2022ApJ...936...23Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/936/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)VII/7 : Lynds' Catalogue of Dark Nebulae (LDN) (Lynds 1962)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)V/146 : LAMOST DR1 catalogs (Luo+, 2015)J/AJ/127/1131 : NGC 1333 low-mass stars infrared photometry (Wilking+, 2004)J/ApJ/638/293 : 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)J/ApJ/646/1009 : Structures of dust in Perseus molecular cloud (Kirk+, 2006)J/AJ/134/2398 : Stellar SEDs in SDSS and 2MASS filters (Covey+, 2007)J/ApJ/663/1149 : Spitzer survey of Serpens YSO population (Harvey+, 2007)J/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJS/184/18 : Spitzer survey of young stellar clusters (Gutermuth+, 2009)J/AJ/140/266 : NGC 1333 X-ray luminous YSOs properties (Winston+, 2010)J/A+A/525/A71 : Atmospheric parameters for 1273 stars (Wu+, 2011)J/A+A/537/A135 : X-ray view of IC348 (Stelzer+, 2012)J/ApJ/750/99 : The Pan-STARRS1 photometric system (Tonry+, 2012)J/MNRAS/434/806 : Pre-main-sequence isochrones. II. SFR (Bell+, 2013)J/ApJS/207/5 : YSOs in LDN 1641 with Hectochelle spectra (Fang+, 2013)J/ApJS/205/5 : YSO candidates in nearby molecular clouds (Hsieh+, 2013)J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)J/ApJ/807/27 : IN-SYNC. III. Radial velocities IC348 stars (Cottaar+, 2015)J/ApJ/799/136 : IN-SYNC. II. Candidate young stars NGC 1333 (Foster+, 2015)J/AJ/150/40 : Spitzer c2d survey of clouds. XII. Perseus (Young+, 2015)J/AJ/154/134 : Planetary-mass brown dwarfs in Taurus SFR (Esplin+, 2017)J/AJ/153/188 : Spectroscopy of foreground population Orion A (Fang+, 2017)J/AJ/153/214 : Star-forming potential in Perseus complex (Mercimek+, 2017)J/AJ/156/271 : The stellar membership of the Taurus SFR (Luhman, 2018)J/ApJ/865/73 : GOBELINS. V. Kinematics of Perseus (Ortiz-Leon+, 2018)J/A+A/626/A80 : Census of Rho Oph cand members from GaiaDR2 (Canovas+, 2019)J/AJ/157/196 : Close companions around young stars (Kounkel+, 2019)J/A+A/639/A64 : Extended Meingast 1 source catalogue (Ratzenboeck+, 2020)J/A+A/652/A2 : rho Oph region revisited with Gaia EDR3 (Grasser+, 2021)J/MNRAS/503/3232 : Five new clustered groups of young stars (Pavlidou+, 2021)J/A+A/649/A3 : Gaia EDR3 photometric passbands (Riello+, 2021)J/AJ/164/57 : 810 candidate members 9 groups in Perseus (Kounkel+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/936/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/936/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/936/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/936/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/936/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/936/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/936/23/table1 (Properties of new members and candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/936/23/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/936/23/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/936/23/table1?GETtext/xml+votable180.050000true55.0859411130.986461110.0055555555555555565/215 6/855 859 880-881 884 1537-1540 1542-1545 1548https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/936/23?format=asciiOpticaldefaultJ/ApJ/936/23/table1Properties of new members and candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaGaia EDR3 identifier [source_id]meta.id;meta.mainRAJ2000[50/58] Right Ascension, Gaia EDR3 (J2000)degpos.eq.ra;meta.mainDEJ2000[30/34] Declination, Gaia EDR3 (J2000)degpos.eq.dec;meta.mainplx[2.72/3.8] Parallax, Gaia EDR3maspos.parallax.trigfloatpmRA[2.51/8.68] Proper motion, Right Ascension, Gaia EDR3mas/yrpos.pm;pos.eq.rafloatpmDE[-11.12/-3.37] Proper motion, Declination, Gaia EDR3mas/yrpos.pm;pos.eq.decfloatSpTDerived spectral typesrc.spTypechare_SpT[0.1/1.6]? Uncertainty in SpTstat.errorfloatnullableAv[0.01/10.37]? Reddening, V-band, Section 4.2magphys.absorptionfloatnullableMemberMembership statusmeta.code.membercharSimbadSimbad column added by the CDSmeta.ref.urlchar