J/ApJ/799/153ivo://CDS.VizieR/J/ApJ/799/153doi:10.26093/cds/vizier.17990153CDSKerton C.R.Wolf-Chase G.Arvidsson K.Lintott C.J.Simpson R.J.2017-12-18T07:57:54Z2015-05-28T15:25:02ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyinfrared-sourcesYellowballs are a collection of approximately 900 compact, infrared sources identified and named by volunteers participating in the Milky Way Project (MWP), a citizen science project that uses GLIMPSE/MIPSGAL images from Spitzer to explore topics related to Galactic star formation. In this paper, through a combination of catalog cross-matching and infrared color analysis, we show that yellowballs are a mix of compact star-forming regions, including ultra-compact and compact HII regions, as well as analogous regions for less massive B-type stars. The resulting MWP yellowball catalog provides a useful complement to the Red MSX Source survey. It similarly highlights regions of massive star formation, but the selection of objects purely on the basis of their infrared morphology and color in Spitzer images identifies a signature of compact star-forming regions shared across a broad range of luminosities and, by inference, masses. We discuss the origin of their striking mid-infrared appearance and suggest that future studies of the yellowball sample will improve our understanding of how massive and intermediate-mass star-forming regions transition from compact to more extended bubble-like structures.2015ApJ...799..153Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/799/153CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/311 : WISE All-Sky Data Release (Cutri+ 2012)J/ApJ/721/137 : The Bolocam Galactic Plane Survey (BGPS) (Bally+, 2010)J/ApJS/188/123 : The Bolocam Galactic Plane Survey. II. (Rosolowsky+, 2010)J/ApJS/195/14 : The Bolocam Galactic Plane Survey. V. (Schlingman+, 2014)J/A+A/549/A45 : ATLASGAL Compact Source Catalog: 330<l<21 (Contreras+, 2013)J/A+A/487/253 : The RMS survey: ^13^CO observations of YSOs (Urquhart+ 2008)J/A+A/501/539 : RMS survey. 6cm observations of YSOs (Urquhart+, 2009)J/ApJS/208/11 : The Red MSX Source Survey: massive protostars (Lumsden+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/799/153https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/799/153http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/799/153https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/799/153https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/799/153http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/799/153GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/799/153/catalog (Yellowballs identified by the Milky Way Project (MWP) participants (table 1) and IR matches (table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/799/153/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/799/153/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/799/153/catalog?GETtext/xml+votable180.050000true211.14028-61.410040.0055555555555555565/3589 7278 7377 7578 7605 7654 7672 10414 10453 10624 6/12970 12971 12974 14353 14365 14403 14408 28808 28809 28812 28814 28824 28825 28826 28828 28830 28831 28875 28878 28896 28899 28900 28901 28912 28913 28915 28916 28918 28919 29091 29094 29096 29097 29100 29101 29103 29116 29118 29119 29163 29461 29463 29504 29505 29507 29522 29528 29529 29532 29533 29535 30218 30219 30222 30244 30245 30247 30257 30258 30259 30260 30262 30268 30269 30318 30319 30330 30331 30405 30416 30417 30419 30594 30598 30600 30601 30604 30605 30606 30622 30641 30644 30645 30694 30695 30701 30706 30707 30713 30715 30716 30718 30719 32085 37893 37904 41598 41599 41651 41653 41654 41655 41660 41673 41675 41676 41677 41678 41681 41682 41683 41684 41686 41688 41696 41697 41758 41759 41763 41765 41767 41768 41769 41770 41772 41773 41777 41778 41780 41781 41801 41802 41804 41805 41810 41811 41816 41820 41824 42158 42159 42169 42170 42171 42172 42173 42174 42206 42207 42214 42215 42216 42217 42224 42225 42226 42228 42229 42230 42378 42379 42381 42382 42387 42390 42391 42392 42396 42397 42400 42434 42435 42440 42441 42444 42445 42450 42451 42454 42455 42456 42457 42460 42461 42500 42501 42512 43013 43014 43015 43019 43020 43024 43025 43040 430418.27688880188539e-21 2.483060040379131e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/799/153?format=asciiInfrareddefaultJ/ApJ/799/153/table3Yellowball photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMatchMatch descriptionmeta.notecharSeq[1/928] Sequential numbermeta.recordintF8Average 8{mu}m flux densityJyphot.flux.density;em.IR.8-15umfloate_F8Uncertainty in F8Jystat.errorfloatF12Average 12{mu}m flux densityJyphot.flux.density;em.IR.8-15umfloate_F12Uncertainty in F12Jystat.errorfloatF24Average 24{mu}m flux densityJyphot.flux.density;em.IR.15-30umfloate_F24Uncertainty in F24Jystat.errorfloatBGPS[Y/N] Bolocam Galactic Plane Survey match? (1)meta.codecharATLASGAL[Y/N] ATLASGAL survey match? (1)meta.codecharWISE[Y/N] WISE catalog match? (1)meta.codecharCl[KGCQ] WISE catalog classification (G1)meta.code.classcharJ/ApJ/799/153/catalogYellowballs identified by the Milky Way Project (MWP) participants (table 1) and IR matches (table 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.idintprimaryPSimbad column added by the CDSmeta.ref.urlcharMWP1Milky Way Project identifier, MWP1 GLLLlll+BBbbbYmeta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lonGLAT[-1/1] Galactic latitudedegpos.galactic.latdLON[0/6.1] Dimension along galactic longitude (1)arcminphys.angSize;srcfloatdLAT[0/6.2] Dimension along galactic latitude (1)arcminphys.angSize;srcfloatHit[0.1/1] Hit rate (2)meta.code.qualfloatBGPS2Bolocam Galactic Plane Survey version 2 identifier (J/ApJ/731/90)meta.id.assoccharATLASGALThe ATLASGAL survey identifier (J/A+A/568/A41)meta.id.assoccharRMSRed-MSX Source identifier (J/ApJS/208/11)meta.id.assoccharWISEWISE catalog identifier (II/328)meta.id.assoccharCl[KGCQ] WISE catalog classification (G1)meta.code.classcharSat[Y/N] 24{mu}m saturated image? (1)meta.codechar_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