J/AJ/162/279ivo://CDS.VizieR/J/AJ/162/279doi:10.26093/cds/vizier.51620279CDSSilverberg S.M.Gunther H.M.Kim J.S.Principe D.A.Wolk S.J.2024-09-06T20:11:30Z2022-03-23T12:02:57ZCDS support team

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

cds-question@unistra.frnebulaeyoung-stellar-objectsinfrared-photometryvisible-astronomyx-ray-sourcestrigonometric-parallaxEmpirically, the estimated lifetime of a typical protoplanetary disk is <5-10Myr. However, the disk lifetimes required to produce a variety of observed exoplanetary systems may exceed this timescale. Some hypothesize that this inconsistency is due to estimating disk fractions at the cores of clusters, where radiation fields external to a star-disk system can photoevaporate the disk. To test this, we have observed a field on the western outskirts of the IC1396 star-forming region with XMM-Newton to identify new Class III YSO cluster members. Our X-ray sample is complete for YSOs down to 1.8M{sun}. We use a subset of these X-ray sources that have near- and mid-infrared counterparts to determine the disk fraction for this field. We find that the fraction of X-ray-detected cluster members that host disks in the field we observe is 17_-7_^+10^%(1{sigma}), comparable with the 29_-3_^+4^% found in an adjacent field centered on the cometary globule IC1396A. We reevaluate YSO identifications in the IC1396A field using Gaia parallaxes compared to previous color-cut-only identifications, finding that incorporating independent distance measurements provides key additional constraints. Given the existence of at least one massive star producing an external radiation field in the cluster core, the lack of a statistically significant difference in disk fraction in each observed field suggests that disk lifetimes remain consistent as a function of distance from the cluster core.2021AJ....162..279Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/279CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)J/MNRAS/415/103 : IPHAS T Tauri candidates in IC 1396 (Barentsen+, 2011)J/A+A/537/A135 : X-ray view of IC348 (Stelzer+, 2012)J/AJ/144/101 : Multiwavelength IRAS 20050+2720 young SFR (Guenther+, 2012)J/MNRAS/426/91 : Kepler stars with infrared excess (Kennedy+, 2012)J/MNRAS/426/2917 : X-rays sources in Trumpler 37 (Getman+, 2012)J/A+A/559/A3 : Low-mass stars in Trumpler 37 (Sicilia-Aguilar+, 2013)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/ApJ/787/109 : Age estimates for NGC 2024 and ONC stars (Getman+, 2014)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/AJ/156/18 : APOGEE DR14:Binary comp. evolved stars (Price-Whelan+, 2018)J/ApJ/868/43 : Adaptative optic images WISE YSO candidate (Silverberg+, 2018)J/ApJ/878/7 : 2yr obs. of JHK variability of stars in Tr37 (Meng+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/279https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/279http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/279https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/279https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/279http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/279GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/162/279/table2 (YSOs in the XMM-Newton field of view)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/279/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/279/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/279/table2?GETtext/xml+votable180.050000true323.505929257.35665430.0055555555555555566/15475 15478 15481 154842.0616683193919197e-20 1.6867587740958882e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/162/279?format=asciiX-rayOpticalInfrareddefaultJ/AJ/162/279/table2YSOs in the XMM-Newton field of viewrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintUKIRTUKIRT Source identifiermeta.id;meta.mainSpitzerSpitzer source identifiermeta.id.crosscharWISEWISE source identifiermeta.id.crosscharRAJ2000[323/324] UKIRT Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[57.2/57.8] UKIRT Declination (J2000)degpos.eq.dec;meta.mainplx[-0.008/2]? Gaia EDR3 parallaxmaspos.parallax.trigfloatnullablee_plx[0.009/0.4]? Uncertainty in plxmasstat.error;pos.parallaxfloatnullableJmag[10.3/21.7]? UKIRT/WFCAM J band Vega magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag[0/0.2]? Uncertainty in Jmagmagstat.error;phot.magfloatnullableHmag[10/21.2]? UKIRT/WFCAM H band Vega magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag[0/0.3]? Uncertainty in Hmagmagstat.error;phot.magfloatnullableKmag[9.47/19.5] UKIRT/WFCAM K band Vega magnitudemagphot.mag;em.IR.Kfloate_Kmag[0/0.1] Uncertainty in Kmagmagstat.error;phot.magfloatI1flux[16/97770]? Spitzer/IRAC I1 3.6um band fluxuJyphot.flux;em.IR.3-4umdoublenullablee_I1flux[0.4/28]? Uncertainty in I1fluxuJystat.errorfloatnullableI2flux[8/61700]? Spitzer/IRAC I2 4.5um band fluxuJyphot.flux;em.IR.4-8umdoublenullablee_I2flux[0.3/23]? Uncertainty in I2fluxuJystat.errorfloatnullableI3flux[53/74510]? Spitzer/IRAC I3 5.8um band fluxuJyphot.flux;em.IR.4-8umdoublenullablee_I3flux[1/261]? Uncertainty in I3fluxuJystat.errorfloatnullableI4flux[25/87310]? Spitzer/IRAC I4 8.0um band fluxuJyphot.flux;em.IR.4-8umdoublenullablee_I4flux[1/82]? Uncertainty in I4fluxuJystat.errorfloatnullableW1mag[6.38/16.7]? WISE W1 3.368um band Vega magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag[0.02/0.3]? Uncertainty in W1magmagstat.error;phot.magfloatnullableW2mag[6.33/17.5]? WISE W2 4.618um band Vega magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag[0.01/0.5]? Uncertainty in W2magmagstat.error;phot.magfloatnullablealphaS[-2.51/1.91]? Spitzer-derived SED slopespect.indexfloatnullablealphaW[-2.51/3.05]? WISE-derived SED slopespect.indexfloatnullableClassAdopted YSO classsrc.classcharxflux[1.3e-15/1.8e-13]? Combined (EPIC) X-ray flux; 0.2-12keV (1)mW.m**-2phot.flux;em.X-raydoublenullablee_xflux[1e-15/4e-14]? Uncertainty in xrayflux (1)mW.m**-2stat.errordoublenullableHR[-1/0.98]? Hardness ratio (2)phot.flux;arith.ratiofloatnullablee_HR[0.02/1.1]? Uncertainty in HRstat.errorfloatnullableRefPrevious references to source (3)meta.refSimbadNameSimbad column added by the CDSmeta.idcharnullable