J/ApJ/555/932ivo://CDS.VizieR/J/ApJ/555/932doi:10.26093/cds/vizier.15550932CDSSpangler C.Sargent A.I.Silverstone M.D.Becklin E.E.Zuckerman B.2022-05-11T09:32:56Z2007-02-08T11:42:50ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsinfrared-sourcesUsing ISO-ISOPHOT, we carried out a survey of almost 150 stars to search for evidence of emission from dust orbiting young main-sequence stars, both in clusters and isolated systems. Over half of the detections are new examples of dusty stellar systems and demonstrate that such dust can be detected around numerous stars older than a few times 10^6^yr. Fluxes at 60 and either 90 or 100{mu}m or the new excess sources together with improved fluxes for a number of IRAS-identified sources are presented. Analysis of the excess luminosity relative to the stellar photosphere shows a systematic decline of this excess with stellar age consistent with a power-law index of -2.2001ApJ...555..932Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/555/932CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/555/932https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/555/932http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/555/932https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/555/932https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/555/932http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/555/932GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/555/932/table2 (Young field star ages)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/555/932/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/555/932/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/555/932/table2?GETtext/xml+votable180.050000true1.4689367-41.75306810.005555555555555556Cone search capability for table J/ApJ/555/932/targets (Targets observed in chopped ("c") and raster ("r") modes (tables 3 and 4 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/555/932/targets?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/555/932/targets?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/555/932/targets?GETtext/xml+votable180.050000true164.4254072-76.99323360.005555555555555556Cone search capability for table J/ApJ/555/932/table5 (Properties of stars with infrared excess)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/555/932/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/555/932/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/555/932/table5?GETtext/xml+votable180.050000true247.4528867-21.86998030.005555555555555556Cone search capability for table J/ApJ/555/932/table6 (PMS stars with infrared excess in Chamaeleon I and Upper Scorpius)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/555/932/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/555/932/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/555/932/table6?GETtext/xml+votable180.050000true164.4254072-76.99323360.005555555555555556Cone search capability for table J/ApJ/555/932/table7 (Open clusters and young field stars: IRAS PSC and FSC fluxes and new photometry of stars with infrared excess)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/555/932/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/555/932/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/555/932/table7?GETtext/xml+votable180.050000true49.507274449.64412030.0055555555555555565/7120 9239 6/134 339 350 368 460-461 472-473 1030 1067 1165 1181 1725 1769 1774 2520 3091 3095 3101 3103 3136 3138-3139 3144 7763 8496 8717 9955 10034 10203 10741 11109 11128 11145 11163 11165 11204 11225 11510 11856 15177 16220 16289 17486 17907 20327 20657 21386 23518 23526 23532-23533 23537-23538 23547-23548 24107 27775 28092-28094 28131 28137 28142 28437 28439 28469 28484 28486 28489-28490 28696 32147 33116 35497 36884 36888 36914 36938 36943 36963 36969 36971 37065 37128 39808 41098 41101 41129 41272 41568 42990 43004 43544 44254 45927 46987 47133 47706 47904 481631.6558465556080236e-21 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/555/932?format=asciiInfrareddefaultJ/ApJ/555/932/table2Young field star agesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharAge? AgeMyrtime.ageintnullabler_Age? Reference for Age (1)meta.ref;pos.frameintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/555/932/targetsTargets observed in chopped ("c") and raster ("r") modes (tables 3 and 4 of paper)SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField name (1)obs.fieldcharNameTarget name (2)meta.id;meta.maincharprimaryn_Name[*] RX J1048.9-7765 (original) corrected into RX J1048.9-7655 by CDSmeta.notecharSpTypeSpectral typesrc.spTypecharModeObserving mode as chopped ("c") or raster ("r")meta.code;obscharS60umFlux density at 60{mu}mJyphot.flux.density;em.IR.30-60umfloate_S60umrms uncertainty on S60umJystat.errorfloatS100umFlux density at 100{mu}mJyphot.flux.density;em.IR.60-100umfloate_S100umrms uncertainty on S100umJystat.errorfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/555/932/table5Properties of stars with infrared excessSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField (1)obs.fieldcharn_Field[DN] D for detection stars, N for nondetected or contaminated starsmeta.notecharNameTarget namemeta.id;meta.maincharSpTypeSpectral typesrc.spTypecharVmag? V magnitudemagphot.mag;em.opt.VfloatnullableB-V? B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullablel_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini? Rotational velocitykm/sphys.veloc.rotatintnullableDistDistance of the starpcpos.distance;pos.heliocentricfloatu_Dist[?] Uncertainty flag on Distmeta.code.errorcharl_AgeLimit flag on Agemeta.code.error;time.agecharAge? AgeMyrtime.ageintnullableRemRemarks on multiplicitymeta.notechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/555/932/table6PMS stars with infrared excess in Chamaeleon I and Upper ScorpiusSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFlag[ND] D for detected stars, N for nondetected or contaminated PMS starsmeta.code.errorcharNameTarget namemeta.id;meta.maincharl_S12um1Limit flag on S12um1meta.code.errorcharS12um1? IRAS flux at 12{mu}mmJyphot.flux.density;em.IR.8-15umintnullablel_S25um1Limit flag on S25um1meta.code.errorcharS25um1? IRAS flux at 25{mu}mmJyphot.flux.density;em.IR.15-30umintnullablel_S60um1Limit flag on S60um1meta.code.errorcharS60um1? IRAS flux at 60{mu}mmJyphot.flux.density;em.IR.30-60umintnullablen_S60um1[b] Note on S60um1 (1)meta.notecharl_S100um1Limit flag on S100um1meta.code.errorcharS100um1? IRAS flux at 100{mu}mmJyphot.flux.density;em.IR.60-100umintnullablen_S100um1[b] Note on S100{mu}m1meta.notecharl_S60um2[<= ] Limit flag on S60um2meta.code.errorcharS60um2ISO flux at 60{mu}m (2)mJyphot.flux.density;em.IR.30-60umintl_S100um2[<= ] Limit flag on S100um2meta.code.errorcharS100um2ISO flux at 100{mu}m (2)mJyphot.flux.density;em.IR.60-100umintn_S100um2[c] Note on S100um2 (1)meta.notecharfd? Fractional excess luminosity (3)phys.luminosity;arith.ratiofloatnullableNotes? Notes in notes.dat file (4)meta.noteintnullableIRASDisplay the data of the IRAS sources close to this positionmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/555/932/table7Open clusters and young field stars: IRAS PSC and FSC fluxes and new photometry of stars with infrared excessSimbadNameSimbad column added by the CDSmeta.idcharnullableS12um1? IRAS flux density at 12{mu}mmJyphot.flux.density;em.IR.8-15umintnullablel_S25um1Limit flag on S25um1meta.code.errorcharS25um1? IRAS flux density at 25{mu}mmJyphot.flux.density;em.IR.15-30umintnullablel_S60um1Limit flag on S60um1meta.code.errorcharS60um1? IRAS flux density at 60{mu}mmJyphot.flux.density;em.IR.30-60umintnullablel_S100um1Limit flag on S100um1meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField (1)obs.fieldcharNameTarget namemeta.id;meta.maincharl_S12um1Limit flag on S12um1meta.code.errorcharS100um1? IRAS flux density at 100{mu}mmJyphot.flux.density;em.IR.60-100umintnullablel_S60um2Limit flag on S60um2meta.code.errorcharS60um2ISO flux density at 60{mu}m (2)mJyphot.flux.density;em.IR.30-60umintl_S90um2Limit flag on S90um2meta.code.errorcharS90um2ISO flux density at 90{mu}m (2)mJyphot.flux.density;em.IR.60-100umintn_S90um2[b] if chopped upper limit at 100{mu}mmeta.notecharfdFactional excess luminosityphys.luminosity;arith.ratiofloatNotes? Notes in notes.dat filemeta.noteintnullableIRASDisplay the data of the IRAS sources close to this positionmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/555/932/notesNotes to tables 6 and 7NoteNote numbermeta.noteintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTextText of the notemeta.notechar