J/MNRAS/484/5049ivo://CDS.VizieR/J/MNRAS/484/5049doi:10.26093/cds/vizier.74845049CDSMoolekamp F.E.Mamajek E.E.James D.J.Luhman K.L.Pecaut M.J.,Metchev S.A.Bell C.P.M.Denbo S.R.2024-08-19T20:16:50Z2020-12-29T08:35:38ZCDS support team

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

cds-question@unistra.frm-starsstellar-massesinfrared-photometryvisible-astronomybroad-band-photometryUsing images taken with the Dark Energy Camera (DECam), the first extensive survey of low mass and substellar objects is made in the ~15-20Myr Upper Centaurus Lupus (UCL) and Lower Centaurus Crux (LCC) subgroups of the Scorpius-Centaurus OB Association (Sco-Cen). Due to the size of our data set (>2Tb), we developed an extensive open source set of python libraries to reduce our images, including astrometry, coaddition, and PSF photometry. Our survey consists of 29x3deg^2^ fields in the UCL and LCC subgroups of Sco-Cen and the creation of a catalogue with over 11 million point sources. We create a prioritized list of UCL and LCC candidate members, with 118 best and another 348 good candidates. We show that the luminosity and mass functions of our low mass and substellar candidates are consistent with measurements for the younger Upper Scorpius subgroup and estimates of a universal IMF, with spectral types ranging from M1 down to L1.2019MNRAS.484.5049Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/484/5049CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/denis : The DENIS database (DENIS Consortium, 2005)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/328 : AllWISE Data Release (Cutri+ 2013)I/322 : UCAC4 Catalogue (Zacharias+, 2012)I/284 : The USNO-B1.0 Catalog (Monet+ 2003)I/305 : The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/484/5049https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/484/5049http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/484/5049https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/484/5049https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/484/5049http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/484/5049GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/484/5049/catalog (Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/484/5049/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/484/5049/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/484/5049/catalog?GETtext/xml+votable180.050000true184.4485395601913-49.26368854457850.0055555555555555565/9540 10663 10678 10767 10779 10787 10791 10795 10798 10808 10834 10882 6/20686 37201-37203 37206 38138 38149 38164 38166-38167 38174-38175 38197 38217-38218 38574 41973 41975 41981 42647 42656 42658-42659 42664 42685 42687 42690 42696 42703 42722-42723 42725 42728-42730 42736-42737 43067 43082 43104-43105 43110-43111 43115 43122 43128 43142 43147 43159 43172 43174-43175 43186-43188 43196 43198 43201-43204 43209 43211 43214 43236 43247 43258 43293 43295 43317 43321 43323-43324 43326 43341-43343 43352 43354 43360 43364-43365 43376 43408-43409 43412 43421 43423 43444-43445 43464 43466 43524 43527 43532-43534 43537 43543 43546 43549 43551-43552 43557 43559 43565 43568 43570 43584 43586 43588-43589 43591 43600 44039 44045 44048-44050 44056https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/484/5049?format=asciiOpticalInfrareddefaultJ/MNRAS/484/5049/catalogCatalogSimbadNameSimbad column added by the CDSmeta.idcharnullableTeffEstimated TeffKphys.temperature.effectivefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedE_MassUpper bound of estimated masssolMassstat.error;stat.maxfloatAgeEstimted ageMyrtime.agefloate_AgeLower bound on estimated ageMyrstat.error;time.agefloatE_AgeUpper bound on estimated ageMyrstat.error;stat.maxfloatDistEstimated distancepcpos.distancefloatEpoch[2015.4] Epoch used in the RA and DE positionsyrtime.epochfloatRA_ICRSRight ascension (ICRS) at Ep=2015.4degpos.eq.ra;meta.maine_RA_ICRSEstimated RA errormasstat.error;pos.eq.rafloatDE_ICRSDeclination (ICRS) at Ep=2015.4degpos.eq.dec;meta.maine_DE_ICRSEstimated DE errormasstat.error;pos.eq.decfloatimagPSF i-band magnitudemagphot.mag;em.opt.Idoublee_imagEstimated error in imagstat.error;phot.magdoublef_imag[0/1] True if this record was from a 7s exposuremeta.codefloatzmagPSF z-band magnitudemagphot.mag;em.opt.Idoublee_zmagEstimated error in zmagstat.error;phot.magdoublef_zmag[0/1] True if this record was from a 7s exposuremeta.codefloatz-Y? z-Y color indexmagphot.color;em.opt;em.IRdoublenullablee_z-Y? Estimated error in z-Y color indexmagstat.error;phot.color;em.opt.VdoublenullableYmag? PSF Y-band magnitudemagphot.mag;em.IR.Jdoublenullablee_Ymag? Estimated error in Ymagstat.error;phot.magdoublenullablee_DistLower bound on estimated distancepcstat.errorfloatE_DistUpper bound on estimated distancepcstat.error;stat.maxfloate_TeffLower bound on estimated TeffKstat.error;phys.temperature.effectivefloatE_TeffUpper bound on estimated TeffKstat.error;stat.maxfloatloggEstimated surface gravitylog(solLum)phys.gravityfloate_loggLower bound on estimated logglog(solLum)stat.errorfloatE_loggUpper bound on estimated logglog(solLum)stat.error;stat.maxfloatSpTypeEstimated spectral typesrc.spTypechare_SpTypeEarliest possible spectral typestat.error;src.spTypecharE_SpTypeLatest possible spectral typestat.error;stat.maxcharAvEstimated extinctionmagphys.absorptionfloate_AvLower bound on estimated Avmagstat.errorfloatf_Ymag[0/1] True if this record was from a 7s exposuremeta.codefloatpmRAD? Proper motion RA component using only DECam observationsmas/yrpos.pm;pos.eq.radoublenullablee_pmRAD? Error in pmRAD measurementmas/yrstat.error;pos.pm;pos.eq.radoublenullablepmDED? Proper motion RA component using only DECam observationsmas/yrpos.pm;pos.eq.decdoublenullablee_pmDED? Error in pmDED measurementmas/yrstat.error;pos.pm;pos.eq.decdoublenullablepmRAR? References proper motion RA componentmas/yrpos.pm;pos.eq.radoublenullablee_pmRAR? Error in pmRAR measurementmas/yrstat.error;pos.pm;pos.eq.radoublenullablepmDER? References proper motion DE componentmas/yrpos.pm;pos.eq.decdoublenullablee_pmDER? Error in pmDER measurementmas/yrstat.error;pos.pm;pos.eq.decdoublenullable2MASS2MASS ID (HHMMSsss+DDMMSSs)meta.idcharAllWISEAllWISE ID (JHHMMSS.ss+DDMMSS.s)meta.idcharUCAC4UCAC4 ID (FFF_NNNNNN)meta.idcharUSNOB1USNOB1 ID (FFFF-NNNNNNN)meta.idcharGSCGSC IDmeta.idcharDENISDENIS ID (JHHMMSS.s+DDMMSS)meta.idcharframe2013DECam CCD for 2013 epoch observationtime.epochcharframe2015DECam CCD for 2015 epoch observationtime.epochcharbadwp2013[0/1]? True if the SEP windowed position algorithm failed for the 2013 positionmeta.codefloatnullablebadwp2015[0/1] True if the SEP windowed position algorithm failed for the 2015 positionmeta.codefloatbadid2013[0/1]? True if the 2013 measurement is badmeta.codefloatnullablebadid2015[0/1] True if the 2015 measurement is badmeta.codefloatObjThe "OBJECT" used to identify the field in the DECam observation headermeta.codecharsubgroupSubgroup of Sco-Cen containing this candidatemeta.idcharbest-pm[0/1]? True for high quality PM measurementsmeta.codefloatnullableno-pm[0/1] True when only observed in 1 epochmeta.codefloatlow-mag[0/1] True when the source has very low SNmeta.codefloatbest[0/1]? Source has good decam PM and ref PMmeta.codefloatnullablegoodpmD[0/1]? True for reliable DECam proper motionsmeta.codefloatnullablegoodpmR[0/1]? True for reliable reference proper motionsmeta.codefloatnullableMassEstimated masssolMassphys.massfloate_MassLower bound of estimated masssolMassstat.error;phys.massfloatE_AvUpper bound on estimated Avmagstat.error;stat.maxfloatchi2chi^2^ of the model fitstat.fit.chi2;stat.fit.param;meta.modelleddoubleconfHow confident we are that this source is a member of Sco-Cenmeta.codecharIDID of each candidatemeta.id;meta.mainchar