J/A+A/661/A53ivo://CDS.VizieR/J/A+A/661/A53doi:10.26093/cds/vizier.36610053CDSvan Terwisga S.E.Hacar A.van Dishoeck E.F.Oonk R.Portegies Zwart S.2022-09-08T09:25:17Z2022-05-06T07:25:36ZCDS support team

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

cds-question@unistra.frsurveyspre-main-sequence-starsradio-sourcesSurveys of protoplanetary disks in nearby star-forming regions (SFRs) have provided important information on their demographics. However, due to their sample sizes, these surveys cannot be used to study how disk properties vary with the environment. We conduct a survey of the unresolved millimeter continuum emission of 873 protoplanetary disks identified by Spitzer in the L1641 and L1647 regions of the Orion A cloud. This is the largest such survey yet, allowing us to identify even weak trends in the median disk mass as a function of position in the cloud and cluster membership. The sample detection rates and median masses are also compared to those of nearby (<300pc) SFRs. The sample was observed with the Atacama Large Millimeter/submillimeter Array (ALMA) at 225GHz, with a median rms of 0.08mJy/beam, or 1.5M_{Earth}_. The data were reduced and imaged using an innovative parallel data processing approach. We detected 58% (502/873) of the observed disks. This includes 20 disks with dust masses >100M_{Earth}_, and two objects associated with extended dust emission. By fitting a log-normal distribution to the data, we infer a median disk dust mass in the full sample of 2.2^+0.2^_-0.2_M_{Earth}_. In L1641 and L1647, median dust masses are 2.1^+0.2^_-0.2_M_{Earth}_ and 2.6^+0.4^_-0.5_M_{Earth}_ respectively. The disk mass distribution of the full sample is similar to that of nearby low-mass SFRs at similar ages of 1-3Myr. We find only weak trends in disk (dust) masses with galactic longitude and between the Young Stellar Object (YSO) clusters identified in the sample, with median masses varying by <~50%. Differences in age may explain the median disk mass variations in our subsamples. Apart from this, disk masses are essentially constant at scales of ~100pc. This also suggests that the majority of disks, even in different SFRs, are formed with similar initial masses and evolve at similar rates, assuming no external irradiation, with disk mass loss rates of ~10^-8^M_{sun}_/yr.2022A&A...661A..53Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/661/A53CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/144/192 : Spitzer survey of Orion A and B. I. YSO catalog (Megeath+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/661/A53https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/661/A53http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/661/A53https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/661/A53https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/661/A53http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/661/A53GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/661/A53/table1 (Continuum fluxes and masses for the SODA sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/661/A53/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/661/A53/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/661/A53/table1?GETtext/xml+votable180.050000true85.6272083-10.18017220.0055555555555555566/21400 21402-21403 21406 21425 21427-21428 21430 21433 21435-21436 214381.4908656533193022e-22 1.4908656533193022e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/661/A53?format=asciiRadiodefaultJ/A+A/661/A53/table1Continuum fluxes and masses for the SODA sampledDistancepcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MGM2012]Megeath et al. (2012AJ....144..192M, Cat. J/AJ/144/192) catalog numbermeta.id;meta.mainintRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainl_F225GHz[<] Upper limit flag on F225GHzmeta.code.errorcharF225GHz[0.21/75.14] 225GHz continuum fluxmJyphot.flux.density;em.mm.200-400GHzfloate_F225GHz[0.05/0.35] Continuum flux uncertaintymJystat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharl_Mdust[<] Upper limit flag on Mdustmeta.code.errorcharMdust[1.1/363.92] Disk dust mass(5.97236x10+24kg)phys.massfloate_Mdust[0.24/1.89] Disk dust mass uncertainty(5.97236x10+24kg)stat.errorfloatResolved[0/1] Source resolvedness flagmeta.codeint