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dc.contributor.authorHaworth, T.~J.
dc.contributor.authorTasker, E.~J.
dc.contributor.authorFukui, Y.
dc.contributor.authorTorii, K.
dc.contributor.authorShima, K.
dc.contributor.authorTakahira, K.
dc.contributor.authorHabe, A.
dc.contributor.authorHasegawa, K.
dc.contributor.authorDale, James
dc.date.accessioned2017-07-12T16:32:47Z
dc.date.available2017-07-12T16:32:47Z
dc.date.issued2015-06-01
dc.identifier.citationHaworth , T J , Tasker , E J , Fukui , Y , Torii , K , Shima , K , Takahira , K , Habe , A , Hasegawa , K & Dale , J 2015 , ' Isolating signatures of major cloud-cloud collisions using position-velocity diagrams ' , Monthly Notices of the Royal Astronomical Society , vol. 450 , no. 1 , pp. 10-20 . https://doi.org/10.1093/mnras/stv639
dc.identifier.issn0035-8711
dc.identifier.otherBibtex: urn:85ac51eaacd6ca7d01c7bc21e3d6c5fd
dc.identifier.otherORCID: /0000-0001-5252-5771/work/62751067
dc.identifier.urihttp://hdl.handle.net/2299/18900
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractCollisions between giant molecular clouds are a potential mechanism for triggering the formation of massive stars, or even super star clusters. The trouble is identifying this process observationally and distinguishing it from other mechanisms. We produce synthetic position–velocity diagrams from models of cloud–cloud collisions, non-interacting clouds along the line of sight, clouds with internal radiative feedback and a more complex cloud evolving in a galactic disc, to try and identify unique signatures of collision. We find that a broad bridge feature connecting two intensity peaks, spatially correlated but separated in velocity, is a signature of a high-velocity cloud–cloud collision. We show that the broad bridge feature is resilient to the effects of radiative feedback, at least to around 2.5 Myr after the formation of the first massive (ionizing) star. However for a head-on 10 km s−1 collision, we find that this will only be observable from 20 to 30 per cent of viewing angles. Such broad–bridge features have been identified towards M20, a very young region of massive star formation that was concluded to be a site of cloud–cloud collision by Torii et al., and also towards star formation in the outer Milky Way by Izumi et al.en
dc.format.extent11
dc.format.extent3023703
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectmethods: numerical, stars: formation, ISM: Bubbles, ISM: clouds, H II regions, ISM: kinematics and dynamics
dc.titleIsolating signatures of major cloud-cloud collisions using position-velocity diagramsen
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.description.statusPeer reviewed
rioxxterms.versionofrecord10.1093/mnras/stv639
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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