Lithium-rich stars in the Sloan Digital Sky Survey

Sarah L. Martell; Matthew D. Shetrone

doi:10.22323/1.146.0251

Lithium-rich stars in the Sloan Digital Sky Survey

Solar and Stellar Astrophysics 2022-10-26 v1

Authors: Sarah L. Martell , Matthew D. Shetrone

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Abstract

We report the discovery of 23 lithium-rich post-main-sequence stars, identified from moderate-resolution SDSS spectroscopy and confirmed with high-resolution spectra taken at the Hobby-Eberly Telescope. These new Li-rich stars cover a broad range in mass and evolutionary phase, including bright giants and post-AGB stars. The process responsible for preserving or producing excess lithium in a small fraction of evolved stars remains unclear.

Keywords

lithium-rich stars post-main-sequence stars SDSS spectroscopy stellar evolution lithium abundance

Cite

@article{arxiv.1211.0362,
  title  = {Lithium-rich stars in the Sloan Digital Sky Survey},
  author = {Sarah L. Martell and Matthew D. Shetrone},
  journal= {arXiv preprint arXiv:1211.0362},
  year   = {2022}
}

Comments

5 pages, XII International Symposium on Nuclei in the Cosmos, August 5-12, 2012, Cairns, Australia. To appear in Proceedings of Science

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