Tc and Other Unstable Elements in Przybylski's Star

Details Tc and Other Unstable Elements in Przybylski's Star Tc and Other Unstable Elements in Przybylski's Star

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..336..309b&link_type=abstract

Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis in honor of David L. Lambert, ASP Conference Series, Vol.

Astronomy and Astrophysics

Astronomy

7

Scientific paper

A study of recent high-resolution spectra of the very unusual magnetic Ap star HD 101065 = V816 Cen has revealed the presence of many lines of the unstable elements Tc, Pm, Po, Ac, Pa, and the transuranics Np through Es. The isotopes involved are not known. Because of the short lifetimes of some of these elements, it seems likely that surface nuclear reactions are responsible for their presence. Solar-flare-like activity is suggested.

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