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dc.contributor.authorOudmaijer, R.D.
dc.contributor.authorDrew, J.E.
dc.date.accessioned2008-01-03T16:35:22Z
dc.date.available2008-01-03T16:35:22Z
dc.date.issued1999
dc.identifier.citationOudmaijer , R D & Drew , J E 1999 , ' Ha spectropolarimetry of B[e] and Herbig Be stars ' Monthly Notices of the Royal Astronomical Society , vol. 305 , no. 1 , pp. 166180 . https://doi.org/10.1046/j.1365-8711.1999.02383.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 143491
dc.identifier.otherPURE UUID: 9a6d6877-bded-4da0-a882-14ea665ba612
dc.identifier.otherdspace: 2299/1319
dc.identifier.otherScopus: 0009796371
dc.identifier.urihttp://hdl.handle.net/2299/1319
dc.descriptionThe definitive version is available at www.blackwell-synergy.com. Copyright Blackwell Publishing DOI : 10.1046/j.1365-8711.1999.02383.x
dc.description.abstractWe present the results of medium resolution ( v 60 km s−1) spectropolarimetric observations across H of a sample of B[e] and Herbig Be objects. A change in linear polarization across H is detected in a large fraction of the objects, with characteristics ranging from simple depolarization in a couple of Herbig Be stars, to more complex behaviour in the probable post main sequence B[e] stars. H in the spectra of HD 37806 and HD 50138 each consist of a double-peaked polarized line and a superposed unpolarized single emission peak, suggesting two distinct line-forming regions.Multiple observations of HD 45677 allow for the separation of electron and dust scattering effects for the first time: the difference between derived intrinsic polarization angles of the two components indicate that the dust-scattering region is clumpy. Two unexpected results are the non-detections of H polarization changes in ! Ori, where depolarization has previously been detected, and in MWC 297, which exhibits source elongation at radio wavelengths. In ! Ori time variability is probably responsible such that this star’s electron-scattering disk was much weakened at the time of observation. Two hypotheses are advanced that might explain the MWC 297 result.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.titleHa spectropolarimetry of B[e] and Herbig Be starsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
rioxxterms.versionofrecordhttps://doi.org/10.1046/j.1365-8711.1999.02383.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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