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dc.contributor.authorUrquhart, J.S.
dc.contributor.authorMoore, T.J.T.
dc.contributor.authorSchuller, F.
dc.contributor.authorWyrowski, F.
dc.contributor.authorMenten, K. M.
dc.contributor.authorThompson, M. A.
dc.contributor.authorCsengeri, T.
dc.contributor.authorWalmsley, C.M.
dc.contributor.authorBronfman, L.
dc.contributor.authorKönig, C.
dc.date.accessioned2013-06-11T13:45:52Z
dc.date.available2013-06-11T13:45:52Z
dc.date.issued2013-05-01
dc.identifier.citationUrquhart , J S , Moore , T J T , Schuller , F , Wyrowski , F , Menten , K M , Thompson , M A , Csengeri , T , Walmsley , C M , Bronfman , L & König , C 2013 , ' ATLASGAL - environments of 6.7 GHz methanol masers ' , Monthly Notices of the Royal Astronomical Society , vol. 431 , no. 2 , pp. 1752-1776 . https://doi.org/10.1093/mnras/stt287
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 1909220
dc.identifier.otherPURE UUID: 5ca36755-1f0f-45d3-8736-89c6c8d02e78
dc.identifier.otherBibtex: urn:8ff92ae579ebcbc5df817b82a4d3fb91
dc.identifier.otherScopus: 84876857013
dc.identifier.otherORCID: /0000-0001-5392-909X/work/30970788
dc.identifier.urihttp://hdl.handle.net/2299/10751
dc.description.abstractUsing the 870 micron APEX Telescope large area survey of the Galaxy, we have identified 577 submillimetre continuum sources with masers from the methanol multibeam survey in the region 280deg lt ell lt 20deg; |b| lt 1deg.5 94 per cent of methanol masers in the region are associated with submillimetre dust emission. We estimate masses for tilde450 maser-associated sources and find that methanol masers are preferentially associated with massive clumps. These clumps are centrally condensed, with envelope structures that appear to be scale-free, the mean maser position being offset from the peak column density by 0 plusmn 4 arcsec. Assuming a Kroupa initial mass function and a star formation efficiency of tilde30 per cent, we find that over two-thirds of the clumps are likely to form clusters with masses gt20 M$_?$. Furthermore, almost all clumps satisfy the empirical mass-size criterion for massive star formation. Bolometric luminosities taken from the literature for tilde100 clumps range between tilde100 and 10$^6$ L$_?$. This confirms the link between methanol masers and massive young stars for 90 per cent of our sample. The Galactic distribution of sources suggests that the star formation efficiency is significantly reduced in the Galactic Centre region, compared to the rest of the survey area, where it is broadly constant, and shows a significant drop in the massive star formation rate density in the outer Galaxy. We find no enhancement in source counts towards the southern Scutum-Centaurus arm tangent at ell tilde 315deg, which suggests that this arm is not actively forming stars.en
dc.format.extent25
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectstars: early-type, stars: formation, ISM: molecules, Galaxy: structure
dc.titleATLASGAL - environments of 6.7 GHz methanol masersen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeSubmitted Version
dcterms.dateAccepted2013-05-01
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stt287
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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