STARBENCH: the D-type expansion of an H II region
dc.contributor.author | Bisbas, T.~G. | |
dc.contributor.author | Haworth, T.~J. | |
dc.contributor.author | Williams, R.~J.~R. | |
dc.contributor.author | Mackey, J. | |
dc.contributor.author | Tremblin, P. | |
dc.contributor.author | Raga, A.~C. | |
dc.contributor.author | Arthur, S.~J. | |
dc.contributor.author | Baczynski, C. | |
dc.contributor.author | Frostholm, T. | |
dc.contributor.author | Geen, S. | |
dc.contributor.author | Haugbølle, T. | |
dc.contributor.author | Hubber, D. | |
dc.contributor.author | Iliev, I.~T. | |
dc.contributor.author | Kuiper, R. | |
dc.contributor.author | Rosdahl, J. | |
dc.contributor.author | Sullivan, D. | |
dc.contributor.author | Walch, S. | |
dc.contributor.author | Wünsch, R. | |
dc.contributor.author | Dale, James | |
dc.date.accessioned | 2017-07-10T14:56:24Z | |
dc.date.available | 2017-07-10T14:56:24Z | |
dc.date.issued | 2015-10-21 | |
dc.identifier.citation | Bisbas , T G , Haworth , T J , Williams , R J R , Mackey , J , Tremblin , P , Raga , A C , Arthur , S J , Baczynski , C , Frostholm , T , Geen , S , Haugbølle , T , Hubber , D , Iliev , I T , Kuiper , R , Rosdahl , J , Sullivan , D , Walch , S , Wünsch , R & Dale , J 2015 , ' STARBENCH: the D-type expansion of an H II region ' , Monthly Notices of the Royal Astronomical Society , vol. 453 , no. 2 , pp. 1324-1343 . https://doi.org/10.1093/mnras/stv1659 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | PURE: 11150751 | |
dc.identifier.other | PURE UUID: 86e1afd5-188b-4191-8c8b-a57a434ed4ef | |
dc.identifier.other | Bibtex: urn:60fe6943b3dbe8e7565ae08759f3325a | |
dc.identifier.other | Scopus: 84942436771 | |
dc.identifier.other | ORCID: /0000-0001-5252-5771/work/62751065 | |
dc.identifier.uri | http://hdl.handle.net/2299/18859 | |
dc.description | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © British Crown Owned Copyright 2015/AWE. | |
dc.description.abstract | STARBENCH is a project focused on benchmarking and validating different star formation and stellar feedback codes. In this first STARBENCH paper we perform a comparison study of the D-type expansion of an H II region. The aim of this work is to understand the differences observed between the 12 participating numerical codes against the various analytical expressions examining the D-type phase of H II region expansion. To do this, we propose two well-defined tests which are tackled by 1D and 3D grid- and smoothed particle hydrodynamics-based codes. The first test examines the ‘early phase’ D-type scenario during which the mechanical pressure driving the expansion is significantly larger than the thermal pressure of the neutral medium. The second test examines the ‘late phase’ D-type scenario during which the system relaxes to pressure equilibrium with the external medium. Although they are mutually in excellent agreement, all 12 participating codes follow a modified expansion law that deviates significantly from the classical Spitzer solution in both scenarios. We present a semi-empirical formula combining the two different solutions appropriate to both early and late phases that agrees with high-resolution simulations to ≲ 2 per cent. This formula provides a much better benchmark solution for code validation than the Spitzer solution. The present comparison has validated the participating codes and through this project we provide a data set for calibrating the treatment of ionizing radiation hydrodynamics codes. | en |
dc.format.extent | 20 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | hydrodynamics, methods: numerical, ISM: bubbles, H II regions, ISM: kinematics and dynamics, galaxies: ISM | |
dc.title | STARBENCH: the D-type expansion of an H II region | en |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.description.status | Peer reviewed | |
rioxxterms.version | VoR | |
rioxxterms.versionofrecord | https://doi.org/10.1093/mnras/stv1659 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |