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Implementing TOPbase/Iron Project: continuous absorption from Fe ii
dc.contributor.authorCowley, Charles R.en_US
dc.contributor.authorBautista, Manuelen_US
dc.date.accessioned2010-06-01T20:13:04Z
dc.date.available2010-06-01T20:13:04Z
dc.date.issued2003-06en_US
dc.identifier.citationCowley, Charles R.; Bautista, Manuel (2003). "Implementing TOPbase/Iron Project: continuous absorption from Fe ii." Monthly Notices of the Royal Astronomical Society 341(4): 1226-1230. <http://hdl.handle.net/2027.42/73339>en_US
dc.identifier.issn0035-8711en_US
dc.identifier.issn1365-2966en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/73339
dc.description.abstractWe discuss implementation of TOPbase and Iron Project opacities for stellar spectral codes. We use a technique employed by Peach, where a Boltzmann-averaged cross-section is calculated for selected temperatures, and the opacity obtained from double interpolation in temperature and wavelength. It is straightforward to include all levels for which cross-sections have been calculated. Boltzmann-averaged cross-sections for Fe ii show a local maximum between 1700 and 2000  Å. We suggest this feature arises from 3d 5 4s nl → 3d 5 4p nl transitions within Fe ii. IUE spectra of iron-rich CP stars show local minima in this region. Theoretical calculations of a representative stellar continuum demonstrate that Fe ii photoionization contributes significantly to the observed minima.en_US
dc.format.extent231310 bytes
dc.format.extent3109 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.publisherBlackwell Science Ltden_US
dc.rights2003 RASen_US
dc.subject.otherAtomic Dataen_US
dc.subject.otherAtomic Processesen_US
dc.subject.otherStars: Atmospheresen_US
dc.subject.otherStars: Chemically Peculiaren_US
dc.titleImplementing TOPbase/Iron Project: continuous absorption from Fe iien_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelAstronomyen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Astronomy, University of Michigan, Ann Arbor, MI 48109-1090, USAen_US
dc.contributor.affiliationotherIVIC, Laboratorio de Fisica Computacional, Apdo 21827, Caracas 1020A, Venezuelaen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/73339/1/j.1365-8711.2003.06488.x.pdf
dc.identifier.doi10.1046/j.1365-8711.2003.06488.xen_US
dc.identifier.sourceMonthly Notices of the Royal Astronomical Societyen_US
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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