J/A+A/655/A68ivo://CDS.VizieR/J/A+A/655/A68doi:10.26093/cds/vizier.36550068CDSHottier C.Babusiaux C.Arenou F.2022-03-10T07:24:47Z2021-11-19T07:34:29ZCDS support team

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

cds-question@unistra.frextinctionmolecular-cloudsThe Vela complex is a region of the sky that gathers several stellar and interstellar structures in a few hundred square degrees. Gaia data now allows us to obtain a 3D view of the Vela interstellar structures through the dust extinction. We used the FEDReD (Field Extinction-Distance Relation Deconvolver) algorithm on near-infrared 2MASS data, cross-matched with the Gaia DR2 catalogue, to obtain a 3D cube of extinction density. We applied the FellWalker algorithm on this cube to locate clumps and dense structures. We analysed 18 million stars on 450 deg 2 to obtain the extinction density of the Vela complex from 0.5 to 8kpc at l in [250, 280] and b in [-10, 5].This cube reveals the complete morphology of known structures and relations between them. In particular, we show that the Vela Molecular Ridge is more likely composed by three substructures instead of four, as suggested by the 2D densities. These substructures form the shell of a large cavity. This cavity is visually aligned with the Vela supernova remnant but located at a larger distance. We provide a catalogue of location, distance, size and total dust content of ISM clumps that we extracted.2021A&A...655A..68Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/655/A68CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/655/A68https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/655/A68http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/655/A68https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/655/A68https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/655/A68http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/655/A68GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/655/A68/table2 (Cavity found by the FellWalker algorithm)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/655/A68/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/655/A68/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/655/A68/table2?GETtext/xml+votable180.050000true130.67108132976438-47.427786341984070.005555555555555556Cone search capability for table J/A+A/655/A68/table1 (Density clumps found by the FellWalker algorithm)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/655/A68/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/655/A68/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/655/A68/table1?GETtext/xml+votable180.050000true129.7721860271012-42.390085962559680.005555555555555556Cone search capability for table J/A+A/655/A68/extdens (Extinction density (a0) cube flattened, original shape (77, 155, 208))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/655/A68/extdens?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/655/A68/extdens?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/655/A68/extdens?GETtext/xml+votable180.050000true111.7149-37.64770.005555555555555556Cone search capability for table J/A+A/655/A68/ext (Extinction (A0) cube flattened, original shape (77, 155, 209))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/655/A68/ext?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/655/A68/ext?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/655/A68/ext?GETtext/xml+votable180.050000true111.7149-37.64770.0055555555555555563/591 613 4/2355 2357-2359 2361 2363 2400 2402 2449 2451 2457 2459-2462 5/9414-9415 9425-9427 9449 9451 9632-9634 9640 9642 9793 9795 9801 9803 9825 9827 9833 9835 9852-9854 9921 9924-9925 9984 9986 9992 9994 10016 10018 10024 6/37375 37645 37647 37650-37651 37654-37655 37669 37671 37677 37679 37697-37699 37765 37767 37773 37775 38058-38059 38062-38063 38074-38075 38416 38418 38424 38426 38448 38540 38542 38564 38566 38572 38574 39299 39305 39307 39329 39331 39337 39339 39420-39421 39681 39683 39689 39692-39694 39704 39744-39745 39748 40104-40105https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/655/A68?format=asciidefaultJ/A+A/655/A68/table2Cavity found by the FellWalker algorithmrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/9] Catalog IDmeta.id;meta.mainintX[-1.07/0.41] Barycentre coordinatekpcpos.cartesian.xdoubles_X[0.0/0.1] Standard deviation of barycentre coordinatekpcstat.stdev;pos.framedoubleY[-4.47/-1.54] Barycentre coordinatekpcpos.cartesian.ydoubles_Y[0.0/0.35] Standard deviation of barycentre coordinatekpcstat.stdev;pos.framedoubleZ[-0.33/-0.02] Barycentre coordinatekpcpos.cartesian.zdoubles_Z[0.0/0.04] Standard deviation of barycentre coordinatekpcstat.stdev;pos.framedoubleGLON[256.54/277.63] Barycentre Galactic longitudedegpos.galactic.lons_GLON[0.0/1.86] Standard deviation of barycentre Galactic longitudedegstat.stdev;pos.galactic.londoubleGLAT[-6.12/-0.53] Barycentre Galactic latitudedegpos.galactic.lats_GLAT[0.0/1.19] Standard deviation of barycentre Galactic latitudedegstat.stdev;pos.galactic.latdoubled[1.58/4.6] Barycentre distancekpcpos.distancedoubles_d[0.0/0.36] Standard deviation of barycentre distancekpcstat.stdev;pos.distancedoublemind[1.19/4.35] Minimum distance of edgekpcpos.distancedoubles_mind[0.01/1.0] Standard deviation of minimum distance of edgekpcstat.stdev;pos.distance;stat.mindoublemaxd[1.77/4.82] Maximum distance of edgekpcpos.distancedoubles_maxd[0.01/0.38] Standard deviation of maximum distance of edgekpcstat.stdev;pos.distance;stat.maxdoubleminb[-7.44/-0.81] Minimum b of edgedegpos.galactic.lat;stat.mindoubles_minb[0.0/1.14] Standard deviation of minimum b of edgedegstat.stdev;stat.mindoublemaxb[-4.81/0.34] Maximum b of edgedegpos.galactic.lat;stat.maxdoubles_maxb[0.04/1.0] Standard deviation of maximum b of edgedegstat.stdev;stat.maxdoubleminl[255.3/277.31] Minimum l of edgedegpos.galactic.lon;stat.mindoubles_minl[0.0/3.06] Standard deviation of minimum l of edgedegstat.stdev;stat.mindoublemaxl[257.99/278.02] Maximum l of edgedegpos.galactic.lon;stat.maxdoubles_maxl[0.02/1.36] Standard deviation of maximum l of edgedegstat.stdev;stat.maxdoublephyvol[87000/104800001] Volumepc**3meta.bib.volumedoubles_phyvol[17770/38059708] Standard deviation of volumepc**3meta.bib.volumedouble_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedJ/A+A/655/A68/table1Density clumps found by the FellWalker algorithmID[1/14] Catalog IDmeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintX[-1.07/0.37] Barycentre coordinate Xkpcpos.cartesian.xdoubles_X[0.0/0.05] Standard deviation of barycentre coordinate Xkpcstat.stdev;pos.cartesian.xdoubleY[-3.66/-0.47] Barycentre coordinate Ykpcpos.cartesian.ydoubles_Y[0.0/0.39] Standard deviation of barycentre coordinate Ykpcstat.stdev;pos.cartesian.ydoubleZ[-0.21/0.08] Barycentre coordinate Zkpcpos.cartesian.zdoubles_Z[0.0/0.03] Standard deviation of barycentre coordinate Zkpcstat.stdev;pos.cartesian.zdoubleGLON[250.89/278.08] Barycentre Galactic longitudedegpos.galactic.lons_GLON[0.0/0.86] Standard deviation of barycentre Galactic longitudedegstat.stdev;pos.galactic.londoubleGLAT[-6.57/3.68] Barycentre Galactic latitudedegpos.galactic.lats_GLAT[0.0/0.52] Standard deviation of barycentre Galactic latitudedegstat.stdev;pos.galactic.latdoubled[0.47/3.81] Barycentre distancekpcpos.distancedoubles_d[0.0/0.39] Standard deviation of barycentre distancekpcstat.stdev;pos.distancedoublemind[0.44/3.37] Minimum distance of edgekpcpos.distancedoubles_mind[0.0/0.09] Standard deviation of minimum distance of edgekpcstat.stdev;pos.distance;stat.mindoublemaxd[0.5/4.27] Maximum distance of edgekpcpos.distancedoubles_maxd[0.0/0.88] Standard deviation of maximum distance of edgekpcstat.stdev;pos.distance;stat.maxdoubleminb[-9.54/0.87] Minimum b of edgedegpos.galactic.lat;stat.mindoubles_minb[0.0/0.96] Standard deviation of minimum b of edgedegstat.stdev;stat.mindoublemaxb[-5.6/5.54] Maximum b of edgedegpos.galactic.lat;stat.maxdoubles_maxb[0.0/1.11] Standard deviation of maximum b of edgedegstat.stdev;stat.maxdoubleminl[249.67/277.43] Minimum l of edgedegpos.galactic.lon;stat.mindoubles_minl[0/1.22] Standard deviation of minimum l of edgedegstat.stdev;stat.mindoublemaxl[251.95/280.55] Maximum l of edgedegpos.galactic.lon;stat.maxdoubles_maxl[0.01/1.83] Standard deviation of maximum l of edgedegstat.stdev;stat.maxdoublephyvol[60000/50849001] Volumepc**3meta.bib.volumedoubles_phyvol[6229/19128703] Standard deviation of Volumepc**3meta.bib.volumedoubleAC[4.07e+01/9.18e+04] Total dust contentmag.pc**2phot.mag.sbdoubles_AC[4.29e+00/3.42e+04] Standard deviation of total dust contentmag.pc**2stat.stdevdoubleNotesNotes (VMR for Vela molecular ridge)meta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedJ/A+A/655/A68/extdensExtinction density (a0) cube flattened, original shape (77, 155, 208)_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLAT[-9.79/4.65] Barycentre Galactic latitudedegpos.galactic.latindexedGLON[250.38/279.64] Barycentre Galactic longitudedegpos.galactic.lonindexedd[0.2/24.27] Barycentre distancekpcpos.distancedoublea0[-0.1/20.1]? Extinction densitymag/kpcphys.absorptiondoublenullables_a0[0/1.9]? std of extinction densitymag/kpcphys.absorptiondoublenullableJ/A+A/655/A68/extExtinction (A0) cube flattened, original shape (77, 155, 209)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLAT[-9.79/4.65] Barycentre Galactic latitudedegpos.galactic.latindexedGLON[250.38/279.64] Barycentre Galactic longitudedegpos.galactic.lonindexedd[0.2/24.55] Barycentre distancekpcpos.distancedoubleA0[0/11.70]? Extinctionmagphys.absorptiondoublenullableA0max[0/19.96]? Maximum extinctionmagphys.absorption;stat.maxdoublenullableA0min[0/10.61]? Minimum extinctionmagphys.absorption;stat.mindoublenullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexed