J/A+A/597/A114ivo://CDS.VizieR/J/A+A/597/A114doi:10.26093/cds/vizier.35970114CDSBeuret M.Billot N.Cambresy L.Eden D.J.Elia D.Molinari S.,Pezzuto S.Schisano E.2017-01-12T07:47:50Z2017-01-12T08:46:52ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyinterstellar-mediuminfrared-sourcesh-ii-regionsThe aims are to investigate the clustering of the far-infrared sources from the Herschel infrared Galactic Plane Survey (Hi-GAL) in the Galactic longitude range of -71 to 67{deg}. These clumps, and their spatial distribution, are an imprint of the original conditions within a molecular cloud. This will produce a catalogue of over-densities. The minimum spanning tree (MST) method was used to identify the over-densities in two dimensions. The catalogue was further refined by folding in heliocentric distances, resulting in more reliable over-densities, which are cluster candidates. We found 1633 over-densities with more than ten members. Of these, 496 are defined as cluster candidates because of the reliability of the distances, with a further 1,137 potential cluster candidates. The spatial distributions of the cluster candidates are different in the first and fourth quadrants, with all clusters following the spiral structure of the Milky Way. The cluster candidates are fractal. The clump mass functions of the clustered and isolated are statistically indistinguishable from each other and are consistent with Kroupa's initial mass function.2017A&A...597A.114Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/597/A114CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/397/213 : Galactic HII regions (Paladini+, 2003)J/ApJS/212/1 : The WISE catalog of Galactic HII regions (Anderson+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/597/A114https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/597/A114http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/597/A114https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/597/A114https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/597/A114http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/597/A114GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/597/A114/table1 (Reliable cluster candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A114/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A114/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A114/table1?GETtext/xml+votable180.050000true165.2822-60.80540.005555555555555556Cone search capability for table J/A+A/597/A114/table2 (Potential cluster candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A114/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A114/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A114/table2?GETtext/xml+votable180.050000true164.7087-61.1730.0055555555555555565/3588 7202-7203 7206-7207 7228-7229 7275 7278 7376-7377 7383 7564 7578-7579 7605 7648 7654 7672-7673 7678 10414 10420 10442 10444 10450-10451 10453 10543 10556 10594-10595 10599 10609 10615 10624 6/12968 12970-12971 12974-12975 14336-14337 14340-14341 14343 14358-14359 14402-14403 14406 14409 14412-14413 14426 28802-28803 28806 28818 28852-28853 28874-28875 28878-28879 28890 28896-28897 28899-28902 28921 28925 29088 29090-29091 29094-29097 29118-29119 29162-29163 29456-29457 29460-29461 29463 29520 29522-29523 29526 29528-29529 30216 30218-30219 30222-30223 30240-30241 30243-30245 30247 30260 30262-30263 30268-30269 30271 30306 30330-30331 30404-30405 30416-30417 30419 30598 30601 30604-30606 30622-30623 30641 30644-30645 30701 30706-30707 30710 30716 30718-30719 32085 37893-37895 37897 37899-37902 37906-37907 37921-37926 37928-37929 37932 41595 41598-41599 41651 41653-41655 41660-41661 41671 41673-41678 41684-41686 41688-41689 41696-41697 41704 41758-41759 41763 41765-41767 41772-41773 41780-41782 41785 41798-41799 41810-41811 41816-41817 41824-41825 41856 42154-42155 42158-42159 42169-42171 42203 42206-42207 42210-42211 42213-42218 42220 42228-42230 42387 42389-42393 42395 42400-42401 42434-42435 42440-42441 42444-42445 42447-42448 42450-42452 42454-42458 42500-42502 42512 43013-43015 43018-43021 43024-43026 43040 43042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/597/A114?format=asciiInfrareddefaultJ/A+A/597/A114/table1Reliable cluster candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster candidate namemeta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latamajMajor axisarcminphys.angSizefloatbminMinor axisarcminphys.angSize;srcfloatPAPosition angledegpos.posAngfloatDpeakHeliocentric distance estimated from the peak of the heliocentric distance estimates histogram of the clumpskpcpos.distancefloatDmeanMean of the heliocentric distance estimates of the clumpskpcpos.distancefloatDgalGalactocentric distance (1)kpcpos.distancefloatZScale height (2)pcpos.cartesian.z;pos.galacticfloatLamajLinear major axis (2)pcphys.sizefloatLbminLinear minor axis (2)pcphys.sizefloatDensSurface densitypc**-2pos.distancefloatNclumpsNumber of clumpsmeta.numberintRclumps? Ratio of the number of pre-stellar clumps over proto-stellar clumpsstat.fit.paramfloatnullablen_Rclumps[ab] Note when no value (3)meta.notecharHIIClosest HII region (4)meta.notecharFlag[1,2]? Catalog flag (5)meta.code.errorintnullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexedJ/A+A/597/A114/table2Potential cluster candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster candidate namemeta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latamajMajor axisarcminphys.angSizefloatbminMinor axisarcminphys.angSize;srcfloatPAPosition angledegpos.posAngfloatDensSurface densityarcmin**-2phot.flux.density.sbfloatNclumpsNumber of clumpsmeta.numberintRclumps? Ratio of the number of pre-stellar clumps over proto-stellar clumpsstat.fit.paramfloatnullablen_Rclumps[ab] Note when no value (1)meta.notecharFlag[NDA, SD, SCC] Classification flag (2)meta.code.errorchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed