Shocked H2 and Fe+ dynamics in the Orion bullets Tedds, Jonathan en_US Brand, P en_US Burton, Michael en_US 2021-11-25T13:02:40Z 2021-11-25T13:02:40Z 1999 en_US
dc.description.abstract Observations of H2 velocity profiles in the two most clearly defined Orion bullets are extremely difficult to reconcile with existing steady-state shock models. We have observed [Fe II] 1.644‐μm velocity profiles of selected bullets, and H2 1–0 S(1) 2.122‐μm velocity profiles for a series of positions along and across the corresponding bow-shaped shock fronts driven into the surrounding molecular cloud. Integrated [Fe II] velocity profiles of the brightest bullets are consistent with theoretical bow shock predictions. However, observations of broad, singly peaked H2 1–0 S(1) profiles at a range of positions within the most clearly resolved bullet wakes are not consistent with molecular shock modelling. A uniform, collisionally broadened background component which pervades the region in both tracers is inconsistent with fluorescence arising from the ionizing radiation of the Trapezium stars alone. en_US
dc.identifier.issn 0035-8711 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Shocked H2 and Fe+ dynamics in the Orion bullets en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 2 en_US
unsw.relation.ispartofjournal Monthly Notices of the Royal Astronomical Society en_US
unsw.relation.ispartofpagefrompageto 337-356 en_US
unsw.relation.ispartofvolume 307 en_US
unsw.relation.originalPublicationAffiliation Tedds, Jonathan en_US
unsw.relation.originalPublicationAffiliation Brand, P en_US
unsw.relation.originalPublicationAffiliation Burton, Michael, Physics, Faculty of Science, UNSW en_US School of Physics *
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