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Dysprosium III lines in the spectra of peculiar A and B stars

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1086/157342
AuthorSearch for: 1; Search for: 1; Search for:
Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectA stars; B stars; dysprosium; line spectra; stellar spectra; astronomical catalogs; ionization
Abstract
It is demonstrated that the Dy III line list from the laboratory study of Hussain (1973) represents pure Dy but in many stages of ionization; when known Dy I and Dy II lines are purged from this list, many of the remaining lines coincide with hitherto unidentified lines in the hotter Ap and Pb stars, notably for HR 465 at rare earth maximum. A search list of 34 relatively unblended lines of Dy III is proposed, and the Dy III spectrum is shown to be present in about 16 well-known chemically peculiar stars.
Publication date
PublisherAmerican Astronomical Society
IOP Publishing
In
  • The Astrophysical Journal 232: 812–818.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 17886
NPARC number21275044
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Record identifier95a366dc-b515-4291-8c25-a4ede85eb487
Record created2015-05-06
Record modified2020-03-13
Date modified: