The lithium depletion boundary (LDB) technique is a method proposed for dating open clusters based on a determination of the lithium abundances of a cluster's stars whose masses are at about the hydrogen burning mass limit. This technique is limited to clusters that are 20 to 200 Myr old.
References
- Darling, David (2004), The Universal Book of Astronomy.
- Burke, Christopher J.; et al. (March 2004), "Theoretical Examination of the Lithium Depletion Boundary", The Astrophysical Journal, 604 (1): 272–283, arXiv:astro-ph/0309461, Bibcode:2004ApJ...604..272B, doi:10.1086/381242.
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