dc.contributor.author | Oudmaijer, R.D. | |
dc.contributor.author | Drew, J.E. | |
dc.date.accessioned | 2008-01-03T16:35:22Z | |
dc.date.available | 2008-01-03T16:35:22Z | |
dc.date.issued | 1999 | |
dc.identifier.citation | Oudmaijer , 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.issn | 0035-8711 | |
dc.identifier.other | dspace: 2299/1319 | |
dc.identifier.uri | http://hdl.handle.net/2299/1319 | |
dc.description | The definitive version is available at www.blackwell-synergy.com. Copyright Blackwell Publishing DOI : 10.1046/j.1365-8711.1999.02383.x | |
dc.description.abstract | We 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.format.extent | 641235 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | Ha spectropolarimetry of B[e] and Herbig Be stars | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1046/j.1365-8711.1999.02383.x | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |