J/AJ/163/25ivo://CDS.VizieR/J/AJ/163/25doi:10.26093/cds/vizier.51630025CDSLuhman K.L.2022-06-13T12:13:56Z2022-04-20T12:45:33ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometrystar-forming-regionsI have used mid-infrared (IR) photometry from the Wide-field Infrared Survey Explorer (WISE) to perform a census of circumstellar disks among ~10000 candidate members of the Sco-Cen complex that were recently identified with data from the Gaia mission. IR excesses are detected for more than 1200 of the WISE counterparts that are within the commonly adopted boundary for Sco-Cen, ~400 of which are newly reported in this work. The richest population in Sco-Cen, UCL/LCC, contains the largest available sample of disks (>500) for any population near its age (~20Myr). UCL/LCC also provides the tightest statistical constraints to date on the disk fractions of low-mass stars for any single age beyond that of Upper Sco (~11Myr). For Upper Sco and UCL/LCC, I have measured the disk fractions as a function of spectral type. The disk fraction in Upper Sco is higher at later spectral types, which is consistent with the results for previous samples of candidate members. In UCL/LCC, that trend has become more pronounced; the disk fractions in UCL/LCC are lower than those in Upper Sco by factors of ~10, 5.7, and 2.5 at B7-K5.5, K6-M3.5, and M3.75-M6, respectively. The data in UCL/LCC also demonstrate that the disk fraction for low-mass stars remains nonnegligible at an age of 20Myr (0.09{+/-}0.01). Finally, I find no significant differences in the ages of disk-bearing and diskless low-mass stars in Upper Sco and UCL/LCC based on their positions in color-magnitude diagrams.2022AJ....163...25Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/25CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/311 : WISE All-Sky Data Release (Cutri+ 2012)II/328 : AllWISE Data Release (Cutri+ 2013)I/337 : Gaia DR1 (Gaia Collaboration, 2016)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/A+A/216/44 : Walraven photometry in Sco-Cen association (De Geus+, 1989)J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)J/AJ/124/1670 : Post-T Tauri Stars in Sco-Cen Association (Mamajek+, 2002)J/AJ/124/404 : Upper Scorpius OB association Li survey. II. (Preibisch, 2002)J/ApJ/620/1010 : Spitzer 24{mu}m photometry of A dwarfs (Rieke+, 2005)J/ApJ/651/L49 : Upper Sco OB association IRAC observations (Carpenter+, 2006)J/AJ/131/1574 : Infrared photometry of IC348 members (Lada+, 2006)J/ApJ/638/897 : IR photometry in Trumpler37 & NGC7160 (Sicilia-Aguilar+, 2006)J/ApJ/667/308 : Weak-line T Tauri in Spitzer c2d Survey. II. (Cieza+, 2007)J/ApJ/659/599 : IRAC and JHKs photometry of h and chi Persei (Currie+, 2007)J/ApJ/662/1067 : Sptizer observations of sigma Orionis (Hernandez+, 2007)J/ApJ/675/1375 : IRAC/MIPS photometry in Cha I (Luhman+, 2008)J/ApJS/177/551 : Spitzer c2d survey of Lupus dark clouds (Merin+, 2008)J/ApJ/705/1646 : Debris disks in Upper Sco (Carpenter+, 2009)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJ/712/925 : Transition circumstellar disks in Ophiuchus (Cieza+, 2010)J/ApJS/186/111 : Spitzer observations of Taurus members (Luhman+, 2010)J/ApJ/738/122 : ScoCen debris disks Around F- and G-type stars (Chen+, 2011)J/MNRAS/416/3108 : Membership of Sco OB2 moving group (Rizzuto+, 2011)J/ApJ/756/133 : ScoCen debris disks around B- and A-type stars (Chen+, 2012)J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)J/ApJ/746/154 : Improved kinematic plxs for Sco-Cen members (Pecaut+, 2012)J/AJ/144/8 : Spectro. of ~100 G/K/M-type Sco-Cen complex mem. (Song+, 2012)J/MNRAS/434/806 : Pre-main-sequence isochrones. II. SFR (Bell+, 2013)J/MNRAS/429/903 : New brown dwarf discs in Upper Scorpius (Dawson+, 2013)J/ApJS/211/25 : Spitzer/IRS debris disk catalog. I. (Chen+, 2014)J/ApJ/796/127 : Spitzer h and {chi} Persei candidate members (Cloutier+, 2014)J/ApJ/784/126 : IR photometry of all known members in Taurus (Esplin+, 2014)J/MNRAS/448/2737 : New PMS K/M Stars in Upper Scorpius (Rizzuto+, 2015)J/ApJS/225/15 : IR excess stars from Tycho-2 and AllWISE (Cotten+, 2016)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/ApJ/836/34 : 24um excesses clusters & membership of NGC2244 (Meng+, 2017)J/AJ/156/75 : Circumstellar disks in Upper Sco association (Esplin+, 2018)J/ApJ/868/32 : A large moving group within LCC association (Goldman+, 2018)J/MNRAS/477/5191 : Ggalactic young stellar cluster lifetimes (Richert+, 2018)J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)J/AJ/160/44 : Upper Scorpius spectroscopy and photometry (Luhman+, 2020)J/A+A/634/A98 : Corona-Australis DANCe. I. (Galli+, 2020)J/AJ/160/186 : Gaia survey stars associated with Lupus Clouds (Luhman, 2020)J/AJ/160/44 : Upper Scorpius spectroscopy and photometry (Luhman+, 2020)J/A+A/642/A86 : Circumstellar disks in Lupus complex (Teixeira+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/25https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/25http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/25https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/25https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/25http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/25GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/25/table1 (IR photometry and disk classifications for candidate members of Sco-Cen)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/25/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/25/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/25/table1?GETtext/xml+votable180.050000true167.11658-47.75505950.0055555555555555563/667 670 677 4/2602 2622-2623 2661-2663 2665-2667 2672 2674-2675 2684 2686 2689 2691 2695-2698 2700-2701 2703-2706 2712-2713 2716 2720-2721 2752-2754 2756-2757 2769 2772 5/7169 7299-7300 7302 7339 7680 9488-9489 9492 10379 10400-10402 10412 10415-10416 10423 10426-10427 10464 10467 10473-10474 10479 10484 10583 10601-10604 10606-10607 10616 10619-10620 10633 10637-10638 10640 10642-10643 10657-10659 10692 10694-10695 10704 10706 10708 10712 10714-10715 10740-10742 10748 10750-10751 10753-10755 10760-10761 10763 10768 10772-10773 10775 10777-10779 10796 10798-10799 10809 10811 10828 10830-10831 10856-10857 10859 10888-10889 10896 10899 10944 10960 11020-11021 11033-11034 11036 11038 11044 11059-11060 11074-11075 11080-11081 11083-11085 11092-11094 11096-11097 11099-11100 11108 11963 6/24583 24589 24595 24599 24604 24642 24656 24660 24665 24833 28674-28675 28680-28682 28684 28688 28690-28691 28695-28697 28701-28702 28704 28712 28714 28717 28721 28723 28725-28726 28728-28730 28736-28737 28739-28741 28744 28749 28801-28802 28806 28811 28818 28833 28835-28836 28839 28842 28844-28845 28847 28859 29184-29186 29191 29194 29206 29214 29219 29221 29224 29226-29228 29231-29234 29241 29243 29314 29317 29320 29323-29324 29329 29331 29336 29344 29347-29348 29351-29353 29370 30724 30727 30735 30760 30855 30860 31236 37137 37139-37142 37145 37184-37185 37197 37200 37202-37205 37207 37212-37213 37888-37890 37892-37893 37900-37901 37905 37907-37909 37917-37919 37940 37965 37973-37975 37978 37980 37990 38001 38144-38146 38148-38149 38151 38154 38160-38161 38163 38166 38168 38172 38176 38181 38189 38191 38208 38212 38225 38229 38231 38251 38272 41150 41194 41327 41354 41384 41416 41423 41425 41454 41489 41495-41496 41498 41500 41505 41507-41508 41510 41512-41514 41520 41523 41525 41531-41532 41534 41542 41567 41571 41581 41583 41594 41598 41612-41613 41616 41618 41622 41624-41625 41627-41630 41652 41656-41658 41668 41670 41673 41675 41677 41681-41682 41684 41686 41690 41696-41698 41701-41703 41714-41715 41717-41720 41722-41723 41726-41727 41743 41756-41758 41764 41770 41775 41781 41783 41791 41801 41804 41806 41814-41815 41827 41833-41834 41836-41837 41839-41840 41850 41855 41860-41861 41863-41864 41866-41867 41874-41875 41877 41880-41881 41884 41887-41888 41890-41891 41900 41902-41904 41906-41908 41910-41912 41914-41915 41922 41924-41925 41927 41929 41931 41934-41935 41940 41942 41944 41946-41947 41949-41951 42027-42028 42034 42040 42046 42097 42099 42127 42153 42161 42168 42171-42174 42183 42199 42213 42216 42221-42223 42229 42234-42237 42239 42253 42262 42311 42317 42319 42323 42325 42327-42328 42330-42331 42339 42346 42349-42353 42355-42357 42360 42363-42366 42369 42376 42379-42380 42382 42384 42387-42388 42391 42395-42397 42399-42400 42402-42403 42420 42422-42423 42436 42440-42441 42444-42446 42449-42450 42452 42454 42456 42458-42459 42462 42468 42470-42471 42473-42475 42485-42487 42490 42492-42493 42497 42500-42501 42505 42509 42512 42515-42516 42519-42521 42523-42524 42527 42530 42539 42541 42544-42546 42556-42557 42559 42565-42567 42627 42774-42775 42821-42822 42828 42831 42840-42842 42844 42846-42847 42852 42854-42855 42864 42866 42868 42873-42877 42972-42973 42997-42998 43009-43011 43049-43051 43076-43078 43080 43082-43083 43085-43087 43096-43098 43104-43105 43107 43188-43190 43232-43233 43235 43240-43241 43243 43316-43317 43319 43432-43433 43435 43441-43446 43448-43450 43454-43455 43473 43475-43476 43478-43481 43483-43484 43487 43492-43493 43495-43497 43500-43501 43503 43505 43507-43509 43512-43513 43560-43561 43563-43565 43568 43570-43572 43574-43575 43580 43583 43588-43589 43591-43593 43595 43601-43603 43605 43607-43610 43612-43613 43616 43624 43626-43628 43630 43632 43639 43642 43657 43659 43664 43668-43669 43672-43673 43677-43678 43683 43692-43693 43715-43716 43718 43722 43728 43781 43783 43787 43789 43796 43798-43799 43805 43812 43818 43825 43829 43845-43846 43849 43856 43867 43875 43877 43888 43892 43916 43937 43952 43957 43972 44088-44090 44092-44094 44128-44130 44140 44142 44148 44151 44159 44163-44164 44166 44169-44172 44174-44175 44186-44187 44189 44195-44196 44198 44202 44204-44205 44207 44210 44213-44215 44218 44226-44227 44229-44234 44244-44245 44247 44249 44252-44253 44255-44258 44261 44264 44267 44278-44279 44285 44287-44289 44291-44294 44329 44331 44345-44346 44348-44350 44380 44382 44392-44394 44404 44408-44410 44412 44416 44418-44422 44425 44427 44436 44440 44442 44445 44451 44454 44462 44465 44470 44473 44481 44483 44485-44486 44489 44491 44494-44495 44498 44501 44513 44515 44520 44523 44535 44540 44549-44550 44556 44610 47754 47783 47789-47790 47795 47802-47803 47805-47807 47848-47849 47851 478668.157980699529898e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/25?format=asciiInfrareddefaultJ/AJ/163/25/table1IR photometry and disk classifications for candidate members of Sco-Cene_W4mag[0.008/0.6]? Error in W4magmagstat.error;phot.magfloatnullableW4mag[-1.67/9.47]? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWISESource name from WISE catalogs (1)meta.id;meta.maincharRAJ2000[167/280] Right ascension (J2000) from WISEdegpos.eq.ra;meta.mainDEJ2000[-75/-7.4] Declination (J2000) from WISEdegpos.eq.dec;meta.main2M? closest 2MASS source within 3 arcsecmeta.id.assocchar2Msep[0.01/3.27]? Angular separation between WISE and 2MASSarcsecpos.angDistancefloatnullableJmag[3.09/16.9]? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag[0.01/0.9]? Error in Jmagmagstat.error;phot.magfloatnullableHmag[3.04/16.5]? 2MASS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag[0.01/0.3]? Error in Hmagmagstat.error;phot.magfloatnullableKsmag[3.06/15.9]? 2MASS Ks magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag[0.001/0.6]? Error in Ksmagmagstat.error;phot.magfloatnullableW1mag[3.18/17.4] WISE W1 magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.01/0.4] Error in W1magmagstat.error;phot.magfloatf_W1mag? Flag on W1mag (2)meta.codecharW2mag[1.89/17.1]? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag[0.01/0.4]? Error in W2magmagstat.error;phot.magfloatnullablef_W2mag? Flag on W2mag (2)meta.codecharW3mag[0.7/13]? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag[0.007/0.6]? Error in W3magmagstat.error;phot.magfloatnullablef_W3mag? Flag on W3mag (2)meta.codecharf_W4mag? Flag on W4mag (2)meta.codecharExcW2? Excess present in W2?phot.color.excess;em.IR.4-8umcharExcW3? Excess present in W3?phot.color.excess;em.IR.8-15umcharExcW4? Excess present in W4?phot.color.excess;em.IR.15-30umcharDisk? Disk Type (3)src.classchar