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Reappraising the Spite Lithium Plateau: Extremely Thin and Marginally Consistent with WMAP Data
Open accessAbstract
The lithium abundance in 62 halo dwarfs is determined from accurate equivalent widths reported in the literature and an improved infrared flux method temperature scale. The Li abundance of 41 plateau stars (those with T eff > 6000 K) is found to be independent of temperature and metallicity, with a star-to-star scatter of only 0.06 dex over a broad range of temperatures (6000 K < T eff < 6800 K) and metallicities (-3.4 < [Fe/H] < -1), thus imposing stringent constraints on depletion by mixing and production by Galactic chemical evolution. We find a mean Li plateau abundance of A Li = 2.37 dex ( 7 Li/H = 2.34 × 10 -10 ), which, considering errors of the order of 0.1 dex in the absolute abundance scale, is just in borderline agreement with the constraints imposed by the theory of primordial nucleosynthesis and Wilkinson Microwave Anisotropy Probe data (2.51 dex < A < 2.66 dex).
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Citations
Cited by
Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
Spergel, D. N., Bean, R., Dore, O., Nolta, M. R., Bennett, C. L., Dunkley, J., Hinshaw, G., Jarosik, N., Komatsu, E., Page, L., et al. (2007) · The Astrophysical Journal Supplement Series · doi:10.1086/513700 · Cited by 6,778
Dunkley, J., Komatsu, E., Nolta, M. R., Spergel, D. N., Larson, D., Hinshaw, G., Page, L., Bennett, C. L., Gold, B., Jarosik, N., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/306 · Cited by 1,787
The Discovery and Analysis of Very Metal-Poor Stars in the Galaxy
Beers, T. C., & Christlieb, N. (2005) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.42.053102.134057 · Cited by 1,223
An absolutely calibrated Teffscale from the infrared flux method: Dwarfs and subgiants
Casagrande, L., Ramírez, I., Meléndez, J., Bessell, M., & Asplund, M. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/200913204 · Cited by 718
Self-citationBig-bang nucleosynthesis and gravitinos
Kawasaki, M., Kohri, K., Moroi, T., & Yotsuyanagi, A. (2008) · Physical Review D · doi:10.1103/physrevd.78.065011 · Cited by 458
Metadata
- Authors
- Meléndez, J., & Ramírez, I.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2004-09-27
- Volume
- 615
- Issue
- 1
- Pages
- L33-L36
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2069536714
- Cited by
- 168
- References
- 0
- FWCI
- 9.06
- Type
- journal article
- Language
- en
- Open access
- bronze
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