dc.contributor.author | MacLachlan, J.~M. | |
dc.contributor.author | Bonnell, I.~A. | |
dc.contributor.author | Wood, K. | |
dc.contributor.author | Dale, James | |
dc.date.accessioned | 2017-07-18T15:37:52Z | |
dc.date.available | 2017-07-18T15:37:52Z | |
dc.date.issued | 2015-01-07 | |
dc.identifier.citation | MacLachlan , J M , Bonnell , I A , Wood , K & Dale , J 2015 , ' Photoionising feedback and the star formation rates in galaxies ' , Astronomy & Astrophysics , vol. 573 , A112 . https://doi.org/10.1051/0004-6361/201322250 | |
dc.identifier.issn | 1432-0746 | |
dc.identifier.other | PURE: 11151060 | |
dc.identifier.other | PURE UUID: e7e0fffd-888b-464b-95eb-f82bb61cdf56 | |
dc.identifier.other | Bibtex: urn:2ed0f0ecbbc6d19fdfd8b72cc684a393 | |
dc.identifier.other | Scopus: 84921303773 | |
dc.identifier.other | ORCID: /0000-0001-5252-5771/work/62751069 | |
dc.identifier.uri | http://hdl.handle.net/2299/18981 | |
dc.description | J. M. MacLachlan, I. A. Bonnell, K. Wood, and J. E. Dale, “Photoionising feedback and the star formation rates in galaxies”, Astronomy & Astrophysics, Vol. 573, January 2015. This version of record is available online at: https://www.aanda.org/articles/aa/abs/2015/01/aa22250-13/aa22250-13.html Reproduced with Permission from Astronomy and Astrophysics, © ESO 2015. | |
dc.description.abstract | Aims. We investigate the effects of ionising photons on accretion and stellar mass growth in a young star forming region, using a Monte Carlo radiation transfer code coupled to a smoothed particle hydrodynamics (SPH) simulation. Methods. We introduce the framework with which we correct stellar cluster masses for the effects of photoionising (PI) feedback and compare to the results of a full ionisation hydrodynamics code. Results. We present results of our simulations of star formation in the spiral arm of a disk galaxy, including the effects of photoionising radiation from high mass stars. We find that PI feedback reduces the total mass accreted onto stellar clusters by ≈23% over the course of the simulation and reduces the number of high mass clusters, as well as the maximum mass attained by a stellar cluster. Mean star formation rates (SFRs) drop from SFRcontrol = 4.2 × 10-2 M⊙ yr-1 to SFRMCPI = 3.2 × 10-2 M⊙ yr-1 after the inclusion of PI feedback with a final instantaneous SFR reduction of 62%. The overall cluster mass distribution appears to be affected little by PI feedback. Conclusions. We compare our results to the observed extra-galactic Schmidt-Kennicutt relation and the observed properties of local star forming regions in the Milky Way and find that internal photoionising (PI) feedback is unlikely to reduce SFRs by more than a factor of ≈2 and thus may play only a minor role in regulating star formation. | en |
dc.format.extent | 10 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astronomy & Astrophysics | |
dc.subject | HII regions, radiative transfer, stars: massive | |
dc.title | Photoionising feedback and the star formation rates in galaxies | en |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.description.status | Peer reviewed | |
rioxxterms.version | VoR | |
rioxxterms.versionofrecord | https://doi.org/10.1051/0004-6361/201322250 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |