Show simple item record

dc.contributor.authorLewis, Benjamin T.
dc.contributor.authorBate, Matthew R.
dc.contributor.authorPrice, Daniel J.
dc.date.accessioned2016-02-03T15:22:51Z
dc.date.issued2015-05-27
dc.description.abstractWe have developed a modified form of the equations of smoothed particle magnetohydrodynamics which are stable in the presence of very steep density gradients. Using this formalism, we have performed simulations of the collapse of magnetized molecular cloud cores to form protostars and drive outflows. Our stable formalism allows for smaller sink particles (< 5 au) than used previously and the investigation of the effect of varying the angle, θ{symbol}, between the initial field axis and the rotation axis. The nature of the outflows depends strongly on this angle: jet-like outflows are not produced at all when θ{symbol} > 30°, and a collimated outflow is not sustained when θ{symbol} > 10°. No substantial outflows of any kind are produced when θ{symbol} > 60°. This may place constraints on the geometry of the magnetic field in molecular clouds where bipolar outflows are seen.en_GB
dc.description.sponsorshipEuropean Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013)en_GB
dc.description.sponsorshipScience and Technology Facilities Council (STFC)en_GB
dc.description.sponsorshipAustralian Research Council (ARC)en_GB
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2015, Vol. 451 (1), pp. 288-299en_GB
dc.identifier.doi10.1093/mnras/stv957
dc.identifier.grantnumber339248en_GB
dc.identifier.grantnumberDP130102078en_GB
dc.identifier.grantnumberFT130100034en_GB
dc.identifier.urihttp://hdl.handle.net/10871/19588
dc.language.isoenen_GB
dc.publisherOxford University Pressen_GB
dc.relation.urlhttp://hdl.handle.net/10871/17109en_GB
dc.relation.urlhttp://www.astro.ex.ac.uk/people/blewis/research/outflows_misaligned_fields.htmlen_GB
dc.rightsThis article has been accepted for publication in MNRAS. © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.en_GB
dc.titleSmoothed particle magnetohydrodynamic simulations of protostellar outflows with misaligned magnetic field and rotation axesen_GB
dc.typeArticleen_GB
dc.date.available2016-02-03T15:22:51Z
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.descriptionThe dataset used to produce this paper can be accessed at http://hdl.handle.net/10871/17109 Animations can be viewed at http://www.astro.ex.ac.uk/people/blewis/research/outflows_misaligned_fields.html The calculations for this paper were performed on the DiRAC Complexity machine, jointly funded by STFC and the Large Facilities Capital Fund of BIS, and the University of Exeter Supercomputer, a DiRAC Facility jointly funded by STFC, the Large Facilities Capital Fund of BIS and the University of Exeter.en_GB
dc.identifier.journalMonthly Notices of the Royal Astronomical Societyen_GB


Files in this item

This item appears in the following Collection(s)

Show simple item record