Ultra-lithium-deficient halo stars

Details Ultra-lithium-deficient halo stars Ultra-lithium-deficient halo stars

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..268..331e&link_type=abstract

Light Elements in the Universe, Proceedings of the International Astronomical Union, IAU Symposium, Volume 268, p. 331-332

Astronomy and Astrophysics

Astronomy

Stars: Abundances, Blue Stragglers – Galaxy: Halo

Scientific paper

While most warm halo dwarfs show lithium abundances at the level of the Spite Plateau, a small number (~5%) have undetectable lithium lines. The existence of these stars has long raised questions when interpreting the plateau abundances: are they an extreme example of a depletion mechanism that has affected the plateau stars, or do they have an entirely different history? We provide an overview of what is currently known about the lithium-poor halo stars and discuss a possible origin for the lithium deficiency in this unique group of stars.

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