J/ApJ/802/77ivo://CDS.VizieR/J/ApJ/802/77doi:10.26093/cds/vizier.18020077CDSMann R.K.Andrews S.M.Eisner J.A.Williams J.P.Meyer M.R.,Francesco J.D.Carpenter J.M.Johnstone D.2018-01-30T07:18:08Z2015-10-06T16:31:24ZCDS support team

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

cds-question@unistra.frmillimeter-astronomysubmillimeter-astronomyyoung-stellar-objectsWe present the results from a Submillimeter Array survey of the 887{mu}m continuum emission from the protoplanetary disks around 95 young stars in the young cluster NGC 2024. Emission was detected from 22 infrared sources, with flux densities from ~5 to 330mJy; upper limits (at 3{sigma}) for the other 73 sources range from 3 to 24mJy. For standard assumptions, the corresponding disk masses range from ~0.003 to 0.2M_{sun}_, with upper limits at 0.002-0.01M_{sun}_. The NGC 2024 sample has a slightly more populated tail at the high end of its disk mass distribution compared to other clusters, but without more information on the nature of the sample hosts it remains unclear if this difference is statistically significant or a superficial selection effect. Unlike in the Orion Trapezium, there is no evidence for a disk mass dependence on the (projected) separation from the massive star IRS 2b in the NGC 2024 cluster. We suggest that this is due to either the cluster youth or a comparatively weaker photoionizing radiation field.2015ApJ...802...77Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/802/77CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/435/1671 : SCUBA-2 850um survey in {sigma}Ori cluster (Williams+, 2013)J/ApJ/722/1092 : Optical photometry of the ONC. II. (Da Rio+, 2010)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJS/175/277 : Submillimeter-Continuum SCUBA detections (Di Francesco+, 2008)J/ApJ/646/1215 : Low-mass stars and brown dwarfs in NGC 2024 (Levine+, 2006)J/AJ/126/1916 : JHK photometry of young clusters near the Sun (Porras+, 2003)J/AJ/126/1665 : NICMOS observations of NGC 2024 (Liu+, 2003)J/ApJ/598/375 : Chandra X-ray observations of NGC 2024 (Skinner+, 2003)J/ApJ/566/945 : Massive star forming regions at 1.2mm (Beuther+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/802/77https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/802/77http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/802/77https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/802/77https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/802/77http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/802/77GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/802/77/table2 (Inferred disk fluxes and masses from sub-millimer array (SMA) observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/77/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/77/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/77/table2?GETtext/xml+votable180.050000true85.445417-1.9130280.0055555555555555566/228552.239611514764107e-22 2.239611514764107e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/802/77?format=asciiRadiodefaultJ/ApJ/802/77/table2Inferred disk fluxes and masses from sub-millimer array (SMA) observationsIRS[2]? IRC 232 = IRS 2meta.id.crossintnullablee_Fobs[1/4.5]? Fobs uncertaintymJystat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource designation (1)meta.id;meta.maincharEC03[1/9]? Source number in Eisner & Carpenter (2003ApJ...598.1341E); 3mm detection (2)meta.id.crossintnullableFld[A-I] SMA field as in Figure 1 and Table 1meta.bib.figcharRAJ2000SMA emission centroid right ascension (J2000)pos.eq.ra;meta.mainDEJ2000SMA emission centroid declination (J2000)pos.eq.dec;meta.mainf_Fobs[n] non dectection (3{sigma} upper limit are given for Fobs)meta.codecharFobs[3/330.5] Integrated 887um continuum flux density corrected for SMA primary beam attenuationmJyphot.flux.density;em.mm.200-400GHzfloatFff[0.1/12]? Extrapolated contribution of free-free emission at 887um (3)mJyphot.flux;meta.modelledfloatnullableFcld[0/0.9] Estimated contribution from large-scale cloud emissionmJyphot.flux;meta.modelledfloatFdk[2.8/330.1] Derived dust continuum flux density from the diskmJyphot.flux;meta.modelledfloatMdk[0.2/17.7] Inferred disk mass (in 0.01M{sun})csolMassphys.massfloate_Mdk[0.1/0.4]? Mdk uncertainty (4)csolMassstat.errorfloatnullable