J/A+A/641/A156ivo://CDS.VizieR/J/A+A/641/A156doi:10.26093/cds/vizier.36410156CDSMiret-Roig N.Huelamo N.Bouy H.2020-12-07T11:24:52Z2020-09-24T08:15:47ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomyDebris discs orbiting young stars are key to understand dust evolution and the planetary formation process.We take advantage of a recent membership analysis of the 30Myr nearby open cluster IC 4665 based on the Gaia and DANCe surveys to revisit the disc population of this cluster. We aim to study the disc population of IC 4665 using Spitzer (MIPS and IRAC) and WISE photometry. We use several colour-colour diagrams with empirical photospheric sequences to detect the sources with an infrared excess. Independently, we also fit the spectral energy distribution (SED) of our debris disc candidates with the Virtual Observatory SED analyser (VOSA) which is capable of automatically detecting infrared excesses and provides effective temperature estimates. We find six candidates debris disc host-stars (five with MIPS and one with WISE) and two of them are new candidates. We estimate a disc fraction of 24+/-10% for the B-A stars, where our sample is expected to be complete. This is similar to what has been reported in other clusters of similar ages (Upper Centaurus Lupus, Lower Centaurus Crux, the $\beta$ Pictoris moving group, and the Pleiades). For solar type stars we find a disk fraction of 9+/-9%, lower than that observed in regions with comparable ages. Our candidates debris disc host-stars are excellent targets to be studied with ALMA or the future James Webb Space Telescope (JWST).2020A&A...641A.156Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/641/A156CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/631/A57 : IC 4665 DANCe (Miret-Roig+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/641/A156https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/641/A156http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/641/A156https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/641/A156https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/641/A156http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/641/A156GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/641/A156/tablea1 (Photometric bands used to detect an IR excess)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/641/A156/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/641/A156/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/641/A156/tablea1?GETtext/xml+votable180.050000true266.1235986582.87704160622000060.0055555555555555564/1986 5/7950 7968-7969 7972 6/31093 31095 31101 31103 31189 31755 31758 31792 31794-31795 31881 31884-318858.157980699529898e-21 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/641/A156?format=asciiOpticalInfrareddefaultJ/A+A/641/A156/tablea1Photometric bands used to detect an IR excessrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Rigth ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainGmag? Gaia DR2 G magnitudemagphot.mag;em.optfloatnullablee_Gmag? Standard error of G magnitudemagstat.error;phot.magfloatnullableBPmag? Gaia DR2 BP magnitudemagphot.mag;em.opt.Bfloatnullablee_BPmag? Standard error of BP magnitudemagstat.error;phot.magfloatnullableRPmag? Gaia DR2 RP magnitudemagphot.mag;em.opt.Rfloatnullablee_RPmag? Standard error of RP magnitudemagstat.error;phot.magfloatnullablegmag? Pan-STARRS PS1 g magnitudemagphot.mag;em.opt.Rfloatnullablee_gmag? Standard error of Pan-STARRS PS1 g magnitudemagstat.error;phot.magfloatnullablermag? Pan-STARRS PS1 r magnitudemagphot.mag;em.opt.Rfloatnullablee_rmag? Standard error of Pan-STARRS PS1 r magnitudemagstat.error;phot.magfloatnullableimag? Pan-STARRS PS1 i magnitudemagphot.mag;em.opt.Ifloatnullablee_imag? Standard error of Pan-STARRS PS1 i magnitudemagstat.error;phot.magfloatnullablezmag? Pan-STARRS PS1 z magnitudemagphot.mag;em.opt.Ifloatnullablee_zmag? Standard error of Pan-STARRS PS1 z magnitudemagstat.error;phot.magfloatnullableymag? Pan-STARRS PS1 y magnitudemagphot.mag;em.IR.Jfloatnullablee_ymag? Standard error of Pan-STARRS PS1 y magnitudemagstat.error;phot.magfloatnullableJmag? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Standard error of J magnitudemagstat.error;phot.magfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Standard error of H magnitudemagstat.error;phot.magfloatnullableKsmag? 2MASS Ks magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Standard error of Ks magnitudemagstat.error;phot.magfloatnullableW1mag? WISE/W1 magnitude (3.35um)magphot.mag;em.IR.3-4umfloatnullablee_W1mag? Standard error of W3 magnitude (11.6um)magstat.error;phot.magfloatnullablef_W1mag[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintl_W1magUpper limit flag on W1magmeta.code.errorcharW2mag? WISE/W2 magnitude (4.6um)magphot.mag;em.IR.4-8umfloatnullablee_W2mag? Standard error of W2 magnitude (4.6um)magstat.error;phot.magfloatnullablef_W2mag[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintl_W2magUpper limit flag on W2magmeta.code.errorcharW3mag? WISE/W3 magnitude (11.6um)magphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? Standard error of W3 magnitude (11.6um)magstat.error;phot.magfloatnullablef_W3mag[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintl_W3magUpper limit flag on W3magmeta.code.errorcharW4mag? WISE/W4 magnitude (22.1um)magphot.flux.density;em.IR.15-30umfloatnullablee_W4mag? Standard error of W4 magnitude (22.1um)magstat.error;phot.magfloatnullablef_W4mag[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintl_W4magUpper limit flag on W4magmeta.code.errorcharIRAC1? IRAC/I1 magnitude (3.6um)magphot.mag;em.IR.3-4umfloatnullablee_IRAC1? Standard error of I1 magnitude (3.6um)magstat.errorfloatnullablef_IRAC1[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintIRAC2? IRAC/I2 magnitude (4.5um)magphot.mag;em.IR.4-8umfloatnullablee_IRAC2? Standard error of I2 magnitude (4.5um)magstat.errorfloatnullablef_IRAC2[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintIRAC3? IRAC/I3 magnitude (5.8um)magphot.flux.density;em.IR.4-8umfloatnullablee_IRAC3? Standard error of I3 magnitude (5.8um)magstat.errorfloatnullablef_IRAC3[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintIRAC4? IRAC/I4 magnitude (8um)magphot.flux.density;em.IR.8-15umfloatnullablee_IRAC4? Standard error of I4 magnitude (8um)magstat.errorfloatnullablef_IRAC4[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeintMIPS1? MIPS/M1 magnitude (24um)magphot.flux.density;em.IR.15-30umfloatnullablee_MIPS1? Standard error of M1 magnitude (24um)magstat.errorfloatnullablef_MIPS1[0/1] Flag 1 indicates the photometric measurements used in the studymeta.codeint