J/ApJ/796/127ivo://CDS.VizieR/J/ApJ/796/127doi:10.26093/cds/vizier.17960127CDSCloutier R.Currie T.Rieke G.H.Kenyon S.J.Balog Z.Jayawardhana R.2018-08-24T05:38:26Z2017-08-23T06:36:31ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomyphotometryline-intensitiesWe analyze very deep Infrared Array Camera and Multiband Imaging Photometer for Spitzer (MIPS) photometry of ~12500 members of the 14 Myr old Double Cluster, h and {chi} Persei, building upon our earlier, shallower Spitzer Cycle 1 studies. Numerous likely members show infrared (IR) excesses at 8 {mu}m and 24 {mu}m, indicative of circumstellar dust. The frequency of stars with 8 {mu}m excess is at least 2% for our entire sample, slightly lower (higher) for B/A stars (later type, lower mass stars). Optical spectroscopy also identifies gas in about 2% of systems, but with no clear trend between the presence of dust and gas. Spectral energy distribution modeling of 18 sources with detections at optical wavelengths through MIPS 24 {mu}m reveals a diverse set of disk evolutionary states, including a high fraction of transitional disks, though similar data for all disk-bearing members would provide constraints. Using Monte Carlo simulations, we combine our results with those for other young clusters to study the global evolution of dust/gas disks. For nominal cluster ages, the e-folding times ({tau}_0_) for the frequency of warm dust and gas are 2.75 Myr and 1.75 Myr, respectively. Assuming a revised set of ages for some clusters, these timescales increase to 5.75 and 3.75 Myr, respectively, implying a significantly longer typical protoplanetary disk lifetime than previously thought. In both cases, the transitional disk duration, averaged over multiple evolutionary pathways, is ~1 Myr. Finally, 24 {mu}m excess frequencies for 4-6 M_{sun}_ stars appear lower than for 1-2.5 M_{sun}_ stars in other 10-30 Myr old clusters.2014ApJ...796..127Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/796/127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/27 : Proper Motions and UBV Photometry in h+chi Per (Muminov 1980)J/AJ/122/248 : h and chi Per UBVI,H{alpha} photometry (Keller+, 2001)J/ApJ/576/880 : CCD UBV photometry of h and {chi} Per (Slesnick+, 2002)J/PASP/114/233 : h and {chi} Per memberships (Uribe+, 2002)J/ApJ/659/599 : IRAC and JHKs photometry of h and chi Persei (Currie+, 2007)J/ApJ/669/L33 : H{alpha} emission sources in h and {chi} Per (Currie+, 2007)J/ApJ/672/558 : MIPS observations of h and {chi} Persei (Currie+, 2008)J/ApJS/186/191 : VI photometry and spectroscopy in h+{chi} Per (Currie+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/796/127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/796/127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/796/127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/796/127https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/796/127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/796/127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/796/127/table1 (List of Candidate/Probable h and {chi} Persei Members (Revised from Currie et al. 2010, J/ApJS/186/191))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/796/127/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/796/127/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/796/127/table1?GETtext/xml+votable180.050000true34.769157.13550.005555555555555556Cone search capability for table J/ApJ/796/127/table2 (Photometry for Candidate/Probable h and {chi} Persei Members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/796/127/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/796/127/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/796/127/table2?GETtext/xml+votable180.050000true34.617357.20840.005555555555555556Cone search capability for table J/ApJ/796/127/table4 (Candidate Accreting Stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/796/127/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/796/127/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/796/127/table4?GETtext/xml+votable180.050000true35.878856.93680.0055555555555555565/8146.772611666688002e-21 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/796/127?format=asciiOpticalInfrareddefaultJ/ApJ/796/127/table1List of Candidate/Probable h and {chi} Persei Members (Revised from Currie et al. 2010, J/ApJS/186/191)PhotPhotometry running number (1)meta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMember[1/13956] Member identification numbermeta.id;meta.mainintSpecSpectroscopy running number (1)meta.idintType[1/3] Membership type (2)meta.code.memberintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSpTypeNumerical spectral type (G1)src.spTypedoubleVmagThe V band magnitude (3)magphot.mag;em.opt.Vfloate_VmagThe 1{sigma} uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatImagThe I band magnitude (3)magphot.mag;em.opt.Idoublee_ImagThe 1{sigma} uncertainty in Imagmagstat.error;phot.mag;em.opt.IfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/796/127/table2Photometry for Candidate/Probable h and {chi} Persei MembersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMember[2/13956] Member identification numbermeta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSpTypeNumerical spectral type (G1)src.spTypedoubleVmag? The V band magnitude (1)magphot.mag;em.opt.Vfloatnullablee_Vmag? The 1{sigma} uncertainty in Vmag (1)magstat.error;phot.mag;em.opt.VfloatnullableImag? The I band magnitude (1)magphot.mag;em.opt.Idoublenullablee_Imag? The 1{sigma} uncertainty in Imag (1)magstat.error;phot.mag;em.opt.IfloatnullableJmag? 2MASS J band magnitude (1)magphot.mag;em.IR.Jdoublenullablee_Jmag? The 1{sigma} uncertainty in Jmag (1)magstat.error;phot.mag;em.IR.JdoublenullableHmag? 2MASS H band magnitude (1)magphot.mag;em.IR.Hdoublenullablee_Hmag? The 1{sigma} uncertainty in Hmag (1)magstat.error;phot.mag;em.IR.HdoublenullableKmag? 2MASS K_S_ band magnitude (1)magphot.mag;em.IR.Kdoublenullablee_Kmag? The 1{sigma} uncertainty in Kmag (1)magstat.error;phot.mag;em.IR.Kdoublenullable3.6mag? Spitzer/IRAC 3.6 micron band magnitude (1)magphot.mag;em.IR.3-4umdoublenullablee_3.6mag? The 1{sigma} uncertainty in 3.6mag (1)magstat.errorfloatnullable4.5mag? Spitzer/IRAC 4.5 micron band magnitude (1)magphot.mag;em.IR.4-8umdoublenullablee_4.5mag? The 1{sigma} uncertainty in 4.5mag (1)magstat.errorfloatnullable5.8mag? Spitzer/IRAC 5.8 micron band magnitude (1)magphot.flux.density;em.IR.4-8umdoublenullablee_5.8mag? The 1{sigma} uncertainty in 5.8mag (1)magstat.errorfloatnullable8mag? Spitzer/IRAC 8 micron band magnitude (1)magphot.flux.density;em.IR.8-15umdoublenullablee_8mag? The 1{sigma} uncertainty in 8mag (1)magstat.errorfloatnullable24mag? Spitzer/MIPS 24 micron band magnitude (1)magphot.flux.density;em.IR.15-30umdoublenullablee_24mag? The 1{sigma} uncertainty in 24mag (1)magstat.errorfloatnullableJ/ApJ/796/127/table4Candidate Accreting StarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSpTypeNumerical spectral type (G1)src.spTypefloatEWHaEquivalent width of H{alpha} ({AA})0.1nmspect.line.eqWidth;em.line.Halphafloat[3.6]-[8]? Spitzer/IRAC [3.6]-[8] color indexmagphot.color;em.IR;em.IRfloatnullable[4.5]-[8]? Spitzer/IRAC [4.5]-[8] color indexmagphot.color;em.IR;em.IRfloatnullable