Show simple item record

dc.contributor.authorBoneberg, D.~M.
dc.contributor.authorGirichidis, P.
dc.contributor.authorErcolano, B.
dc.contributor.authorDale, James
dc.date.accessioned2017-07-14T09:59:22Z
dc.date.available2017-07-14T09:59:22Z
dc.date.issued2015-02-21
dc.identifier.citationBoneberg , D M , Girichidis , P , Ercolano , B & Dale , J 2015 , ' Turbulence in giant molecular clouds: the effect of photoionization feedback ' Monthly Notices of the Royal Astronomical Society , vol. 447 , no. 2 , pp. 1341-1352 . https://doi.org/10.1093/mnras/stu2498
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 11150976
dc.identifier.otherPURE UUID: c323fef5-4e13-421a-9530-81c49ea775f5
dc.identifier.otherBibtex: urn:fb7509b2f114b03033755d200d940ad3
dc.identifier.otherScopus: 84922559298
dc.identifier.urihttp://hdl.handle.net/2299/18944
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractGiant molecular clouds (GMCs) are observed to be turbulent, but theory shows that without a driving mechanism turbulence should quickly decay. The question arises by which mechanisms turbulence is driven or sustained. It has been shown that photoionizing feedback from massive stars has an impact on the surrounding GMC and can for example create vast H II bubbles. We therefore address the question of whether turbulence is a consequence of this effect of feedback on the cloud. To investigate this, we analyse the velocity field of simulations of high-mass star-forming regions by studying velocity structure functions and power spectra. We find that clouds whose morphology is strongly affected by photoionizing feedback also show evidence of driving of turbulence by preserving or recovering a Kolmogorov-type velocity field. On the contrary, control run simulations without photoionizing feedback have a velocity distribution that bears the signature of gravitational collapse and of the dissipation of energy, where the initial Kolmogorov-type structure function is erased.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectturbulence, stars: formation, HII regions
dc.titleTurbulence in giant molecular clouds: the effect of photoionization feedbacken
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2014-11-25
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stu2498
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record