Element identification in Przybylski's star

  1. Get@NRC: Element identification in Przybylski's star (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1086/155440
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Journal titleThe Astrophysical Journal
Pages3741; # of pages: 5
SubjectA Stars; Abundance; Chemical Elements; Stellar Spectra; Atomic Spectra; Line Spectra; Radial Velocity; Stellar Spectrophotometry
AbstractThe method of Hartoog, Cowley, and Cowley (1973) is applied to the general question of element identification in HD 101065, which is often referred to as 'Przybylski's holmium star'. Three spectrograms are analyzed for wavelength coincidences, and a search is conducted for 187 atomic and ionic spectra of 92 elements. Most of the lanthanides, Ca II, and Y II are positively identified, but only weak evidence is found for the iron-peak elements. Some general remarks are made concerning the relative abundances (or absence) of Fe, Co, Y, Zr, Te, Tb, Lu, Yb, Nd, and U. No evidence is obtained for spectral variations or significant radial-velocity variations. It is concluded that iron-peak elements are present in this star, that their spectra are unusually weak with the possible exception of Co I, and that HD 101065 is apparently the only star of the magnetic chemically peculiar sequence with a lanthanide/iron-peak abundance ratio greater than unity.
Publication date
AffiliationNRC Herzberg Institute of Astrophysics; National Research Council Canada
Peer reviewedYes
NRC number15605
NPARC number21275039
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Record identifier60c5ade5-c161-4921-93eb-f6fcdffcc5a0
Record created2015-05-05
Record modified2016-07-18
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