A survey of peculiar and metallic-lined A stars for the actinides

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DOIResolve DOI: http://doi.org/10.1086/154370
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TypeArticle
Journal titleThe Astrophysical Journal
ISSN0004-637X
Volume206
Pages196200; # of pages: 5
SubjectA Stars; Actinide Series; Metallic Stars; Stellar Spectra; Abundance; Astronomical Catalogs; Line Spectra; Thorium Isotopes; Uranium Isotopes
AbstractIn a high-dispersion survey using modern wavelength lists, no convincing evidence has been found for any transuranic actinide in 51 Ap, Am, and 'normal' stars. It is found that stellar wavelengths do occasionally coincide with those of actinide spectra, and that occasionally these coincidences are improbable; that is, the probability that they would arise by chance is in the range 0.005 to 0.05. It is nevertheless concluded that most of these coincidences have arisen by chance in this rather extensive search. Thorium and uranium, which are believed to be present in the rare-earth maximum spectrum of HR 465, are specifically discussed.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Herzberg Institute of Astrophysics
Peer reviewedYes
NRC number14815
NPARC number21275035
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Record identifier2810f641-54b5-4a5f-9d67-8938257df1bb
Record created2015-05-05
Record modified2016-07-18
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