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dc.contributor.authorErcolano, B.
dc.contributor.authorBonnell, I.~A.
dc.contributor.authorDale, James
dc.date.accessioned2017-04-25T15:06:01Z
dc.date.available2017-04-25T15:06:01Z
dc.date.issued2012-07-21
dc.identifier.citationErcolano , B , Bonnell , I A & Dale , J 2012 , ' Ionizing feedback from massive stars in massive clusters - II. Disruption of bound clusters by photoionization ' , Monthly Notices of the Royal Astronomical Society , vol. 424 , no. 1 , pp. 377-392 . https://doi.org/10.1111/j.1365-2966.2012.21205.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 11151320
dc.identifier.otherPURE UUID: 7fc09f48-6eb2-4fbe-be6f-c71fdd22978c
dc.identifier.otherBibtex: urn:b8d1017a2f289d69e47881091f325432
dc.identifier.otherScopus: 84863537361
dc.identifier.otherORCID: /0000-0001-5252-5771/work/62751037
dc.identifier.urihttp://hdl.handle.net/2299/18012
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2012 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. The version of record is available online at doi: 10.1111/j.1365-2966.2012.21205.x
dc.description.abstractWe present a smoothed particle hydrodynamics parameter study of the dynamical effect of photoionization from O-type stars on star-forming clouds of a range of masses and sizes during the time window before supernovae explode. Our model clouds all have the same degree of turbulent support initially, the ratio of turbulent kinetic energy to gravitational potential energy being set to Ekin/|Epot| = 0.7. We allow the clouds to form stars and study the dynamical effects of the ionizing radiation from the massive stars or clusters born within them. We find that dense filamentary structures and accretion flows limit the quantities of gas that can be ionized, particularly in the higher density clusters. More importantly, the higher escape velocities in our more massive (106 M) clouds prevent the H II regions from sweeping up and expelling significant quantities of gas, so that the most massive clouds are largely dynamically unaffected by ionizing feedback. However, feedback has a profound effect on the lower density 104 and 105 M clouds in our study, creating vast evacuated bubbles and expelling tens of per cent of the neutral gas in the 3-Myr time-scale before the first supernovae are expected to detonate, resulting in clouds highly porous to both photons and supernova ejecta.en
dc.format.extent16
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectstars: formation, H II regions
dc.titleIonizing feedback from massive stars in massive clusters - II. Disruption of bound clusters by photoionizationen
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2012.21205.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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