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A search for stars of very low metal abundance. II
Abstract
Spectroscopic observations for 1044 stars located primarily in the southern Galactic hemisphere are reported; the stars were chosen from a list of candidate metal-deficient stars discovered in the HK objective-prism survey. Radial velocities and line indices based on the equivalent widths of Ca II, K, H-gamma and H-delta, and the CH G band are reported. Estimates of metallicity for 874 stars with derived abundances less than -0.5 are presented. The number of extremely metal-poor stars (Fe/H is not greater than -2.0) reported in the present sample is roughly quadruple the same size of nonkinematically selected stars of similar metal abundance reported in previous work, and is on the order of the total previous samples of stars in this abundance regime when all sources are included. The number of stars with Fe/H not greater than -3.0 in the present sample is seven times the number of previously identified stars with spectroscopically determined abundances which are this low.
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Citations
Cited by
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
Self-citationNeutron-Capture Elements in the Early Galaxy
Sneden, C., Cowan, J. J., & Gallino, R. (2008) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.46.060407.145207 · Cited by 968
Near-Field Cosmology with Extremely Metal-Poor Stars
Frebel, A., & Norris, J. E. (2015) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082214-122423 · Cited by 533
Carbon‐enhanced Metal‐poor Stars. I. Chemical Compositions of 26 Stars
Aoki, W., Beers, T. C., Christlieb, N., Norris, J. E., Ryan, S. G., & Tsangarides, S. (2007) · The Astrophysical Journal · doi:10.1086/509817 · Cited by 496
Self-citationSpite, M., Cayrel, R., Plez, B., Hill, V., Spite, F., Depagne, E., François, P., Bonifacio, P., Barbuy, B., Beers, T., et al. (2005) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20041274 · Cited by 429
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Metadata
- Authors
- Beers, T. C., Preston, G. W., & Shectman, S. A.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 1992-06
- Volume
- 103
- Pages
- 1987
- ISSN
- 0004-6256 (ISSN-L)
- OpenAlex
- W2020215161
- Cited by
- 543
- References
- 0
- FWCI
- 2.62
- Type
- journal article
- Language
- en
- Open access
- closed
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- Beers, T. C., Preston, G. W., & Shectman, S. A. (1992). A search for stars of very low metal abundance. II. The Astronomical Journal. https://doi.org/10.1086/116207
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