J/MNRAS/490/2779ivo://CDS.VizieR/J/MNRAS/490/2779doi:10.26093/cds/vizier.74902779CDSBillington S.J.Urquhart J.S.Konig C.Moore T.J.T.Eden D.J.,Breen S.L.Kim W.-J.Thompson M.A.Ellingsen S.P.Menten K.M.,Wyrowski F.Leurini S.2024-08-20T20:13:48Z2023-03-21T13:21:43ZCDS support team

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

cds-question@unistra.frastrophysical-masersradio-astronomymillimeter-astronomysubmillimeter-astronomyradio-sourcesstar-forming-regionsmilky-way-galaxyWe have constructed the largest sample of dust-associated class II 6.7GHz methanol masers yet obtained. New measurements from the Methanol Multibeam (MMB) survey were combined with the 870{mu}m APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) and the 850{mu}m JCMT Plane Survey (JPS). Together with two previous studies we have now identified the host clumps for 958 methanol masers across the Galactic Plane, covering approximately 99 per cent of the MMB catalogue and increasing the known sample of dust-associated masers by over 30 per cent. We investigate correlations between the physical properties of the clumps and masers using distances and luminosities drawn from the literature. Clumps hosting methanol masers are significantly more compact and have higher volume densities than the general population of clumps. We determine a minimum volume density threshold of n(H_2_)>=10^4^cm^-3^ for the efficient formation of intermediate- and high-mass stars. We find 6.7GHz methanol masers are associated with a distinct part of the evolutionary process (L_bol_/M_fwmh_ ratios of between 10^0.6^ and 10^2.2^) and have well-defined turning on and termination points. We estimate the lower limit for the mass of embedded objects to be >=6M_{sun}_ and the statistical lifetime of the methanol maser stage to be ~3.3x10^4^yr. This suggests that methanol masers are indeed reliable tracers of high-mass star formation, and indicates that the evolutionary period traced by this marker is relatively rapid.2019MNRAS.490.2779Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/490/2779CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/453/4264 : JCMT Plane Survey: l=30{deg} field (Moore+, 2015)VIII/96 : 6-GHz methanol multibeam maser catalogue (Caswell+, 2010-12)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/490/2779https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/490/2779http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/490/2779https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/490/2779https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/490/2779http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/490/2779GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/490/2779/table2 (Matched MMB sources with the ATLASGAL and JPS catalogues)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/2779/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/2779/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/2779/table2?GETtext/xml+votable180.050000true277.0427-11.47970.005555555555555556Cone search capability for table J/MNRAS/490/2779/table5 (Matches between MMB and ATLASGAL for the entire MMB catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/2779/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/2779/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/2779/table5?GETtext/xml+votable180.050000true269.6861-24.14430.0055555555555555565/7228 7278 7377 7383 7564 7578 7654 10453 10542-10543 10556 10624 6/12974 14341 14353-14355 21439 21458 21510 22122 22855 23764 23969 23982 24320 24325 28808 28918-28919 29090-29092 29094 29096-29097 29100-29101 29103 29116 29118-29119 29154 29160 29461 29463 29504-29505 29507 29513 29522 29529 30218-30219 30222 30241 30243-30245 30262-30263 30268-30269 30317-30319 30328 30330 30405 30416-30417 30419-30420 30422-30423 30425 30594-30595 30600-30601 30604-30606 30622 30644-30645 30692 30694-30695 30701 30710 30712 30714-30716 30718-30719 37244 37334 37343 37372 37839 37846 37848 37850 37886-37887 37893 37897 37899-37900 37903 37921 37923-37924 37938 38020 38024 39251 39282 39384 41597 41599 41653-41655 41657-41658 41660-41661 41671 41673-41674 41676-41678 41681 41683-41686 41688 41696 41706 41758-41759 41765-41767 41769-41770 41772-41773 41777-41778 41780-41781 41798-41799 41801 41804-41805 41809-41811 41816-41817 41820 41824 42155 42159 42207 42210-42211 42213-42217 42228-42230 42376 42378-42379 42381-42383 42387 42390-42393 42396-42398 42417 42436 42438-42441 42444-42445 42448 42450-42451 42454-42457 42460-42462 42500-42502 42504 42512 42515 43013 43015 43018-43021 43024 43026 43040-430412.283270615984385e-22 2.3390025583187276e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/490/2779?format=asciiMillimeterRadiodefaultJ/MNRAS/490/2779/table2Matched MMB sources with the ATLASGAL and JPS cataloguesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Name[*] Flag on Name (1)meta.codechar_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.raindexed_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.decindexedSimbadNameSimbad column added by the CDSmeta.idcharnullableJPSNameJPS name (JPSGlll.lll+bb.bbb)meta.id.assoccharJMoffset? Offset between MMB emission and JPS peak emissionarcsecpos;arith.difffloatnullableNameMMB source name (Glll.ll+bb.bbba)meta.id;meta.maincharCSCNameATLASGAL name (AGALlll.lll+bb.bbb)meta.id.assoccharAMoffset? Offset between MMB emission and ATLASGAL peak emissionarcsecpos;arith.difffloatnullableFpeakA? ATLASGAL 870{mu}m peak flux densityJy/beamphot.flux.density;em.mm.200-400GHzfloatnullableS870A? ATLASGAL 870{mu}m integrated flux densityJyphot.flux.density;em.mm.200-400GHzfloatnullableFpeakJ? JPS 850{mu}m peak flux densityJy/beamphot.flux.density;em.mm.200-400GHzfloatnullableS850J? JPS 850{mu}m integrated flux densityJyphot.flux.density;em.mm.200-400GHzfloatnullable_GlonGalactic Longitude (derived from Name)degpos.galactic.lon_GlatGalactic Latitude (derived from Name)degpos.galactic.latJ/MNRAS/490/2779/table4Matches between MMB and ATLASGAL for the newest addition to the MMB surveySMMBMMB integrated flux densityJy.km/sphot.flux.density;em.radio.3-6GHzfloatvLSR? Molecular line velocitykm/sphys.veloc;pos.lsrfloatnullablevpeakMMB peak velocitykm/sspect.dopplerVelocfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameMMB source name (Glll.ll+bb.bbba)meta.id;meta.maincharCSCNameATLASGAL name (AGALlll.lll+bb.bbb)meta.id.assoccharFpeakM? MMB peak flux densityJyphot.flux.density;em.mm.200-400GHzfloatnullablevmedianMMB median velocitykm/sspect.dopplerVelocfloatvrangeMMB velocity rangekm/sspect.dopplerVelocfloatAMoffset? Offset between MMB emission and ATLASGAL peak emissionarcsecpos;arith.difffloatnullableJ/MNRAS/490/2779/table5Matches between MMB and ATLASGAL for the entire MMB catalogueClumpClump namemeta.id.assoccharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameMMB source name (Glll.ll+bb.bbba)meta.id;meta.maincharf_Clump[*] Flag on Clump (1)meta.codecharTdust? Dust temperatureKphys.temperaturefloatnullableDist? Distance to sourcekpcpos.distancefloatnullableRadius? Radius of sourcepcphys.size.radiusfloatnullableLum? Associated maser luminositysolLumphys.luminosityfloatnullableSdens? Surface density of sourcelog(solMass.pc**-2)phot.flux.density.sbfloatnullableVdens? Volume density of sourcelog(cm**-3)phys.densityfloatnullablelogL? Logarithm of the clump's bolometric luminositylog(solLum)phys.luminosity;em.radiofloatnullablelogMass? Logarithm of the FWHM mass of the clumplog(solMass)phys.massfloatnullablelogL/M? Logarithm of the clump's luminosity-mass ratiolog(solLum.solMass**-1)phys.composition.massLightRatiofloatnullable_GlonGalactic Longitude (derived from Name)degpos.galactic.lon_GlatGalactic Latitude (derived from Name)degpos.galactic.lat_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.raindexed_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.decindexed