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dc.contributor.authorMc Leod, A.~F.
dc.contributor.authorWeilbacher, P.~M.
dc.contributor.authorGinsburg, A.
dc.contributor.authorRamsay, S.
dc.contributor.authorTesti, L.
dc.contributor.authorDale, James
dc.date.accessioned2017-06-28T14:45:59Z
dc.date.available2017-06-28T14:45:59Z
dc.date.issued2016-02-01
dc.identifier.citationMc Leod , A F , Weilbacher , P M , Ginsburg , A , Ramsay , S , Testi , L & Dale , J 2016 , ' A nebular analysis of the central Orion nebula with MUSE ' , Monthly Notices of the Royal Astronomical Society , vol. 455 , no. 4 , pp. 4057-4086 . https://doi.org/10.1093/mnras/stv2617
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 11150520
dc.identifier.otherPURE UUID: 434f7137-483f-41d5-85a8-bbdb93a144cd
dc.identifier.otherBibtex: urn:980ac0513a74776e395910c94dfc7a64
dc.identifier.otherScopus: 84959144391
dc.identifier.otherORCID: /0000-0001-5252-5771/work/62751053
dc.identifier.urihttp://hdl.handle.net/2299/18629
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractA nebular analysis of the central Orion nebula and its main structures is presented. We exploit observations from the integral field spectrograph Multi Unit Spectroscopic Explorer (MUSE) in the wavelength range 4595–9366 Å to produce the first O, S and N ionic and total abundance maps of a region spanning 6 arcmin × 5 arcmin with a spatial resolution of 0.2 arcsec. We use the S23(=([S II] λλ6717, 6731+[S III] λ9068)/Hβ) parameter, together with [O II]/[O III] as an indicator of the degree of ionization, to distinguish between the various small-scale structures. The only Orion bullet covered by MUSE is HH 201, which shows a double component in the [Fe II] λ8617 line throughout indicating an expansion, and we discuss a scenario in which this object is undergoing a disruptive event. We separate the proplyds located south of the Bright Bar into four categories depending on their S23 values, propose the utility of the S23 parameter as an indicator of the shock contribution to the excitation of line-emitting atoms, and show that the MUSE data are able to identify the proplyds associated with discs and microjets. We compute the second-order structure function for the Hα, [O III] λ5007, [S II] λ6731 and [O I] λ6300 emission lines to analyse the turbulent velocity field of the region covered with MUSE. We find that the spectral and spatial resolution of MUSE are not able to faithfully reproduce the structure functions of previous works.en
dc.format.extent30
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectISM: abundances, H II regions, ISM: individual objects: M 42, ISM: jets and outflows
dc.titleA nebular analysis of the central Orion nebula with MUSEen
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stv2617
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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