J/ApJ/705/1646ivo://CDS.VizieR/J/ApJ/705/1646doi:10.26093/cds/vizier.17051646CDSCarpenter J.M.Mamajek E.E.Hillenbrand L.A.Meyer M.R.2017-10-16T14:57:26Z2012-01-04T10:07:33ZCDS support team

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

cds-question@unistra.frstellar-associationsinfrared-photometrypre-main-sequence-starsWe present MIPS 24um and 70um photometry for 205 members of the Upper Scorpius OB Association. These data are combined with published MIPS photometry for 15 additional association members to assess the frequency of circumstellar disks around 5Myr old stars with spectral types between B0 and M5. Twelve stars have a detectable 70um excess, each of which also has a detectable 24um excess. A total of 54 stars are identified with a 24um excess more than 32% above the stellar photosphere. The MIPS observations reveal 19 excess sources - 8 A/F/G stars and 11 K/M stars - that were not previously identified with an 8um or 16um excess. The lack of short-wavelength emission and the weak 24um excess suggests that these sources are debris systems or the remnants of optically thick primordial disks with inner holes. Despite the wide range of luminosities of the stars hosting apparent debris systems, the excess characteristics are consistent with all stars having dust at similar orbital radii after factoring in variations in the radiation blowout particle size with spectral type. The results for Upper Sco are compared to similar photometric surveys from the literature to re-evaluate the evolution of debris emission.2009ApJ...705.1646Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/705/1646CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/374/372 : ZYJHK photometry in Upper Sco (Lodieu+, 2007)J/MNRAS/373/95 : ZYJHK survey of Upper Sco association (Lodieu+, 2006)J/ApJ/651/L49 : Upper Sco OB association IRAC observations (Carpenter+, 2006)J/AJ/124/404 : Upper Scorpius OB association Lithium survey. II. (Preibisch,J/AJ/121/1040 : PMS members of upper Sco OB association (Preibisch+, 2001)J/A+A/333/619 : Upper Sco OB association Lithium survey (Preibisch+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/705/1646https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/705/1646http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/705/1646https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/705/1646https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/705/1646http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/705/1646GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/705/1646/table2 (Normalized Flux Ratios)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/705/1646/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/705/1646/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/705/1646/table2?GETtext/xml+votable180.050000true238.7494483-23.78837780.0055555555555555565/11079 11090 6/29320 42799 42808 42851 42858 42873 42896 42900 42908 42910 42911 42913 42923 42924 42932 42939 42940 42943 42948 42949 42955 42977 42978 42980 42985 42987 42990 42991 43002 44289 44293 44297 44303 44305 44306 44307 44308 44310 44311 44312 44313 44315 44321 44324 44333 44337 44341 44352 44353 44354 44356 44357 44365 44366 44367 44368 44371 44376 44378 44379 44384 44385 44388 44389 44397 44400 44401 44403 44409 44421 44436 445022.4016587514425055e-21 1.000830682546041e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/705/1646?format=asciiInfrareddefaultJ/ApJ/705/1646/table2Normalized Flux RatiosrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharprimaryNSimbad column added by the CDSmeta.ref.urlcharSpTypeMK spectral typesrc.spTypecharr_SpTypeReference for SpType (1)meta.ref;pos.frameintAVThe V band extinctionphys.absorption;em.opt.VfloatR24Ratio of 24 micron observed to photospheric flux densityphot.flux;arith.ratiofloatR70Ratio of 70 micron observed to photospheric flux densityphot.flux;arith.ratiofloate_R70The 1{sigma} uncertainty in R70stat.errorfloatE24[Y]? Excess at 24 micron?meta.codecharE70[Y]? Excess at 70 micron?meta.codecharTypeDisk type (debris, primordial or Be)src.classcharPapIDisplay the data from Paper I (Carpenter+, 2006, Cat. J/ApJ/651/L49)meta.ref.urlcharSimbadSimbad column added by the CDSchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainJ/ApJ/705/1646/table1MIPS 24 and 70 micron photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (1)meta.id;meta.maincharS24Spitzer/MIPS 24 micron band flux density (2)mJyphot.flux.density;em.IR.15-30umfloate_S24The 1{sigma} uncertainty in S24mJystat.errorfloatS70Spitzer/MIPS 70 micron band flux density (3)mJyphot.flux.density;em.IR.30-60umfloate_S70The 1{sigma} uncertainty in S70mJystat.errorfloatAORKeySpitzer Astronomical Observation Request (AOR) identification numbermeta.id;obsintFlags[1-6, ] Flags concerning the photometry (4)meta.code.errorchar