J/ApJ/679/720ivo://CDS.VizieR/J/ApJ/679/720doi:10.26093/cds/vizier.16790720CDSCieza L.A.Cochran W.D.Augereau J.-C.2017-06-30T05:49:34Z2010-10-21T15:56:21ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometrylate-type-starsdwarf-starsmillimeter-astronomyphotometrysubmillimeter-astronomyWe use the Spitzer Space Telescope to search for infrared excess at 24, 70, and 160um due to debris disks around a sample of 45 FGK-type members of the Hyades. We supplement our observations with archival 24 and 70um Spitzer data of an additional 22 FGK-type and 11 A-type Hyades members in order to provide robust statistics on the incidence of debris disks at 625Myr of age, an era corresponding to the late heavy bombardment in the solar system. We find that none of the 67 FGK-type stars in our sample show evidence for a debris disk, while 2 out of the 11 A-type stars do. This difference in debris disk detection rate is likely to be due to a sensitivity bias in favor of early-type stars. The fractional disk luminosity, L_dust_/L_*_, of the disks around the two A-type stars is ~4x10^-5^, a level that is below the sensitivity of our observations toward the FGK-type stars. However, our sensitivity limits for FGK-type stars are able to exclude, at the 2{sigma} level, frequencies higher than 12% and 5% of disks with L_dust_/L_*_>1x10^-4^ and L_dust_/L_*_>5x10^-4^, respectively. We also use our sensitivity limits and debris disk models to constrain the maximum mass of dust, as a function of distance from the stars, that could remain undetected around our targets.2008ApJ...679..720Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/679/720CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/481/661 : Hyades brown dwarfs and very low mass stars (Bouvier+, 2008)J/AJ/132/111 : BV(RI)_C_photometry of 77 Hyades stars (Joner+, 2006)J/AJ/127/3579 : Radial velocities of Hyades stars (Paulson+, 2004)J/A+A/331/81 : Hyades membership (Perryman+ 1998)J/ApJ/448/683 : Hyades RASS observations (Stern+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/679/720https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/679/720http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/679/720https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/679/720https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/679/720http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/679/720GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/679/720/phot (IRAC and MIPS photometry of Hyades stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/679/720/phot?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/679/720/phot?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/679/720/phot?GETtext/xml+votable180.050000true43.81817.89170.0055555555555555565/5881 5886 6/60 75 78 251 272 309 322 334 336 342 348 357 472 483 917 1024 1025 1032 1033 1075 23017 23286 23313 23383 23416 23450 23454 23478 23479 23493 23497 23501 23502 23503 23504 23511 23513 23515 23518 23535 23537 23538 23539 23542 23548 23550 24068 24099 24104 24192 24194 24206 24207 24209 242511.0763920601544068e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/679/720?format=asciiInfraredRadiodefaultJ/ApJ/679/720/photIRAC and MIPS photometry of Hyades starsPIDSpitzer Program IDmeta.id;obsintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD, BD or HIP star designation (1)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainMIPS-AORSpitzer/MIPS Astronomical Observation Request IDmeta.id;obsintIRAC-AOR? Spitzer/IRAC Astronomical Observation Request IDmeta.id;obsintnullableSpTMK Spectral type from the literaturesrc.spTypecharJmag2MASS J band magnitudemagphot.mag;em.IR.JfloatHmag2MASS H band magnitudemagphot.mag;em.IR.HfloatKsmag2MASS Ks band magnitudemagphot.mag;em.IR.Kfloat2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDScharF3.6? Spitzer/IRAC 3.6 micron flux (1)mJyphot.mag;em.IR.3-4umintnullableF4.5? Spitzer/IRAC 4.5 micron flux (1)mJyphot.mag;em.IR.4-8umintnullableF5.8? Spitzer/IRAC 5.8 micron flux (1)mJyphot.flux.density;em.IR.4-8umintnullableF8.0? Spitzer/IRAC 8.0 micron flux (1)mJyphot.flux.density;em.IR.8-15umintnullableF24Spitzer/MIPS 24 micron fluxmJyphot.flux.density;em.IR.15-30umfloate_F24Uncertainty in F24mJystat.errorfloatF24pPredicted stellar 24 micron photospheric fluxmJyphot.flux.density;em.IR.15-30umfloatF70Spitzer/MIPS 70 micron fluxmJyphot.flux.density;em.IR.30-60umfloate_F70Uncertainty of Spitzer MIPS 70 micron fluxmJystat.errorfloatF70pPredicted stellar 70 micron photospheric fluxmJyphot.flux.density;em.IR.30-60umfloatF160? Spitzer/MIPS 160 micron fluxmJyphot.flux.density;em.mm.1500-3000GHzfloatnullablee_F160? Uncertainty of Spitzer MIPS 160 micron fluxmJystat.errorfloatnullableF160p? Predicted stellar 160 micron photospheric fluxmJyphot.flux.density;em.mm.1500-3000GHzfloatnullable