J/ApJ/856/152ivo://CDS.VizieR/J/ApJ/856/152doi:10.26093/cds/vizier.18560152CDSRyu J.Lee M.G.2019-03-26T12:53:15Z2019-03-14T15:32:30ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-sourcesastrophysical-masersradio-astronomygalaxy-planesmilky-way-galaxyinterstellar-reddeningWe present the discovery of new star clusters in the central plane region (|l|<30{deg} and |b|<6{deg}) of the Milky Way. In order to overcome the extinction problem and the spatial limit of previous surveys, we use the Wide-field Infrared Survey Explorer (WISE) data to find clusters. We also use other infrared survey data in the archive for additional analysis. We find 923 new clusters, of which 202 clusters are embedded clusters. These clusters are concentrated toward the Galactic plane and show a symmetric distribution with respect to the Galactic latitude. The embedded clusters show a stronger concentration to the Galactic plane than the nonembedded clusters. The new clusters are found more in the first Galactic quadrant, while previously known clusters are found more in the fourth Galactic quadrant. The spatial distribution of the combined sample of known clusters and new clusters is approximately symmetric with respect to the Galactic longitude. We estimate reddenings, distances, and relative ages of the 15 class A clusters using theoretical isochrones. Ten of them are relatively old (age >800Myr) and five are young (age ~4Myr).2018ApJ...856..152Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/856/152CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/ocl : Optically visible open clusters and Candidates (Dias+ 2002-2015)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)II/293 : GLIMPSE Source Catalog (I + II + 3D) (IPAC 2008)VIII/96 : 6-GHz methanol multibeam maser catalogue (Caswell+, 2010-12)II/316 : UKIDSS-DR6 Galactic Plane Survey (Lucas+ 2012)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)II/337 : VISTA Variables in the Via Lactea Survey DR1 (Saito+, 2012)II/327 : AKARI Far-Infrared Surveyor YSO catalog (Toth+, 2014)II/348 : VISTA Variable in the Via Lactea Survey DR2 (Minniti+, 2017)J/A+AS/90/327 : 1612MHz OH survey of IRAS sources (te Lintel Hekkert+ 1991)J/A+AS/122/79 : Galactic Bulge Reg. OH 1612MHz survey. I. (Sevenster+ 1997)J/A+AS/124/509 : ATCA/VLA OH 1612 MHz survey. II. (Sevenster+ 1997)J/A+AS/132/211 : Interstellar SiO sources (Harju+ 1998)J/A+A/366/481 : ATCA/VLA OH 1612 MHz survey. III. (Sevenster+, 2001)J/A+A/383/631 : Catalogue of dust clouds in the Galaxy (Dutra+, 2002)J/A+A/397/177 : IR star clusters and stellar groups catalog (Bica+, 2003)J/A+A/404/223 : 2MASS IR star clusters in the Galaxy (Bica+, 2003)J/A+A/400/533 : New IR star clusters in southern Milky Way (Dutra+, 2003)J/ApJ/635/560 : New star clusters discovered in GLIMPSE (Mercer+ 2005)J/A+A/432/737 : Catalogue of 6.7GHz Methanol Masers (Pestalozzi+, 2005)J/A+A/447/921 : Galactic Open Cluster Candidates (Kronberger+, 2006)J/MNRAS/374/399 : Infrared star clusters with |b|<20{deg} (Froebrich+, 2007)J/A+A/476/1019 : RMS survey of southern cand. massive YSOs (Mottram+, 2007)J/ApJ/669/446 : Observations of SiO masers (Nakashima+, 2007)J/PASJ/59/1185 : Water maser in galactic IRAS sources (Sunada+, 2007)J/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/A+A/505/405 : A catalogue of Spitzer dark clouds (Peretto+, 2009)J/A+A/532/A131 : New Galactic star clusters in VVV survey (Borissova+, 2011)J/PASJ/63/S1 : Atlas of dark clouds based on 2MASS (Dobashi+, 2011)J/MNRAS/418/1689 : Red MSX water maser and ammonia emissions (Urquhart+, 2011)J/A+A/542/A3 : Stellar clusters from UKIDSS GPS (Solin+, 2012)J/other/ApSS/344.175 : Protoclusters and subclusters (Majaess, 2013)J/A+A/560/A76 : Stellar clusters in the inner Galaxy (Morales+, 2013)J/A+A/562/A115 : VVV: star formation and embedded clusters (Solin+, 2014)J/A+A/563/A130 : GLIMPSE/BGPS 6.7GHz methanol maser survey (Sun+, 2014)J/MNRAS/442/2240 : Accurate water maser positions from HOPS (Walsh+, 2014)J/ApJS/211/15 : SiO & H2O maser survey toward AGB stars (Yoon+, 2014)J/other/NewA/34.84 : New Galactic embedded cluster candidates (Camargo+, 2015)J/MNRAS/455/3126 : New Galactic star clusters and candidates (Camargo+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/856/152https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/856/152http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/856/152https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/856/152https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/856/152http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/856/152GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/856/152/clusters (List of new clusters and their associated sources (tables 3 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/856/152/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/856/152/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/856/152/clusters?GETtext/xml+votable180.050000true254.334875-50.88130560.005555555555555556Cone search capability for table J/ApJ/856/152/table6 (Reddenings, distances, and relative ages of class A clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/856/152/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/856/152/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/856/152/table6?GETtext/xml+votable180.050000true254.334875-50.88130560.0055555555555555565/7202 7207 7219 7265 7266 7272 7273 7275 7278 7289 7291 7318 7360 7364 7366 7376 7377 7378 7383 7467 7556 7560 7564 7585 10542 10543 10546 10553 10555 10595 10596 10598 10599 10604 10609 10611 10618 10629 6/28704 28709 28712 28714 28715 28719 28721 28724 28725 28727 28728 28730 28731 28775 28776 28777 28778 28781 28783 28786 28787 28790 28792 28793 28794 28796 28802 28803 28805 28807 28812 28813 28814 28817 28818 28820 28824 28826 28827 28832 28834 28835 28836 28838 28839 28840 28841 28850 28851 28853 28855 28857 28862 28863 28867 28869 28871 28873 28874 28875 28882 28883 28884 28885 28886 28888 28889 28891 28892 28894 28895 28896 28899 28900 28901 28902 28906 28908 28909 28912 28914 28916 28918 28919 28921 28923 28924 28926 28927 29058 29068 29069 29074 29075 29082 29083 29085 29087 29096 29097 29099 29104 29105 29106 29110 29111 29116 29118 29119 29129 29130 29153 29154 29155 29160 29161 29163 29170 29171 29176 29177 29178 29180 29182 29184 29186 29188 29189 29200 29201 29203 29205 29206 29251 29257 29262 29265 29266 29269 29276 29277 29278 29301 29444 29445 29447 29448 29449 29451 29453 29454 29461 29462 29463 29469 29470 29471 29473 29477 29478 29488 29492 29493 29495 29522 29523 29524 29525 29528 29529 29530 29536 29538 29540 29543 29545 29548 29550 29552 29553 29556 29557 29559 29561 29565 29567 29653 29654 29655 29865 29866 29882 30209 30214 30215 30216 30218 30219 30223 30231 30233 30234 30235 30244 30245 30248 30249 30250 30253 30260 30262 30266 30336 30348 30349 30363 30385 42126 42136 42139 42142 42143 42148 42150 42151 42155 42157 42159 42160 42161 42163 42165 42178 42183 42188 42190 42191 42195 42200 42201 42203 42206 42207 42210 42211 42217 42218 42225 42227 42228 42229 42230 42232 42234 42235 42236 42286 42298 42300 42303 42335 42336 42341 42343 42346 42347 42351 42352 42357 42362 42365 42366 42367 42371 42373 42374 42376 42377 42379 42389 42390 42391 42400 42401 42402 42406 42407 42408 42410 42411 42413 42414 42415 42420 42422 42423 42426 42429 42433 42434 42435 42440 42441 42442 42449 42450 42451 42454 42455 42456 42457 42458 42460 42461 42462 42464 42466 42467 42468 42470 42471 42478 42479 42480 42481 42482 42484 42485 42488 42489 42491 42492 42495 42497 42499 42500 42503 42508 42509 42512 42514 42515 42520 42522 42524 42527 42561 42562 42564 42565 42567 42576 42756 42821 42832 42836https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/856/152?format=asciiInfraredRadiodefaultJ/ApJ/856/152/clustersList of new clusters and their associated sources (tables 3 and 4)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/923] Name of new clustermeta.id;meta.mainintprimaryGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatRAJ2000[15/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainRad[0.4/4.7] Radiusarcminphys.angSizefloatEmbEmbedded cluster flag (o=embedded cluster; x=non-embedded cluster)meta.codecharq_SeqClass of new cluster (A=best, B=good, C=poor)meta.code.qualcharRAdeg[238.5/285] Right Ascension (J2000)degpos.eq.raDEdeg[-56.2/-0.4] Declination (J2000)degpos.eq.decIRASAssociated IRAS point source (HHMMm+DDMM; B1950 - n=no sources are matched)meta.id.assoccharoffset-IRAS[0/960] Offset to the closest IRAS point sourcearcsecpos.angDistance;arith.diffintMSX6CAssociated MSX source (GLLL.llll+BB.bbbb; n=no sources are matched)meta.id.assoccharoffset-MSX6C[0/6653] Offset to the closest MSX sourcearcsecpos.angDistance;arith.diffintIRDCAssociated Infrared dark cloud (1)meta.id.assoccharoffset-PF09[14/37232] Offset to the closest PF09 sourcearcsecpos.angDistance;arith.diffintoffset-D11[16/16936] Offset to the closest D11 sourcearcsecpos.angDistance;arith.diffintoffset-DB02[13/8373] Offset to the closest DB02 sourcearcsecpos.angDistance;arith.diffintYSOAssociated Young Stellar Object (2)meta.id.assoccharoffset-AKARI[1/5258] Offset to the closest AKARI sourcearcsecpos.angDistance;arith.diffintoffset-R08[4/19597] Offset to the closest R08 sourcearcsecpos.angDistance;arith.diffintoffset-M07[12/52274] Offset to the closest M07 sourcearcsecpos.angDistance;arith.diffintMethanolAssociated Methanol maser (3)meta.id.assoccharoffset-P05[5/23110] Offset to the closest P05 sourcearcsecpos.angDistance;arith.diffintoffset-C10[6/40755] Offset to the closest C10 sourcearcsecpos.angDistance;arith.diffintoffset-S14[23/65524] Offset to the closest S14 sourcearcsecpos.angDistance;arith.diffintH2OAssociated Water maser (4)meta.id.assoccharoffset-W14[8/22814] Offset to the closest W14 sourcearcsecpos.angDistance;arith.diffintoffset-S07[1/65425] Offset to the closest S07 sourcearcsecpos.angDistance;arith.diffintoffset-U11[4/65388] Offset to the closest U11 sourcearcsecpos.angDistance;arith.diffintOHAssociated OH maser (5)meta.id.assoccharoffset-S97a[3/65505] Offset to the closest S97a sourcearcsecpos.angDistance;arith.diffintoffset-S97b[13/65321] Offset to the closest S97b sourcearcsecpos.angDistance;arith.diffintoffset-S01[1/65383] Offset to the closest S01 sourcearcsecpos.angDistance;arith.diffintoffset-t91[8/11372] Offset to the closest t91 sourcearcsecpos.angDistance;arith.diffintSiOAssociated SiO maser (6)meta.id.assoccharoffset-H98[21/24504] Offset to the closest H98 sourcearcsecpos.angDistance;arith.diffintoffset-Y14[16/65418] Offset to the closest Y14 sourcearcsecpos.angDistance;arith.diffintoffset-N07[81/65398] Offset to the closest N07 sourcearcsecpos.angDistance;arith.diffintJ/ApJ/856/152/table6Reddenings, distances, and relative ages of class A clustersAgeAgetime.agecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/15] Name of new clustermeta.id;meta.mainintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatRAJ2000[16/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainRad[0.9/2.7] Radiusarcminphys.angSizefloatEmbEmbedded cluster flag (o=embedded cluster; x=non-embedded cluster)meta.codecharE(B-V)[0.2/5.2] Reddening (1)magphot.color.excessfloatE_E(B-V)[0.1/0.3]? Upper uncertainty on E(B-V) (1)magstat.error;stat.maxfloatnullablee_E(B-V)[0.1/1] Lower or symmetric uncertainty on E(B-V) (1)magstat.errorfloatDist[0.4/12.6] Distance (1)kpcpos.distance;pos.heliocentricfloatE_Dist[0.2/4.8]? Upper uncertainty on Distance (1)kpcstat.error;stat.maxfloatnullablee_Dist[0.1/3.5] Lower or symmetric uncertainty on Distance (1)kpcstat.errorfloatf_AgeFlag on Age (2)meta.codechar