-
Views
-
Cite
Cite
Hitoshi Funayama, Yoichi Itoh, Yumiko Oasa, Eri Toyota, Osamu Hashimoto, Tadashi Mukai, Metallicity Measurements of Pleiades Young Dwarfs, Publications of the Astronomical Society of Japan, Volume 61, Issue 5, 25 October 2009, Pages 931–939, https://doi.org/10.1093/pasj/61.5.931
- Share Icon Share
Abstract
We present metallicity analyses of A, F, and G stars in the Pleiades cluster. High-resolution spectroscopic observations of 25 stars were made with the HIDES spectrograph on the Okayama 1.88-m telescope and the GAOES spectrograph on the Gunma 1.5-m telescope. The resultant optical spectra had an S|$/$|N of 70–220. We measured the equivalent widths of |$\sim $|60 neutral iron and |$\sim $|15 single-ionized iron absorption lines to determine stellar parameters and metallicities. We derived the metallicities of 22 stars by adapting the method of equivalent-width measurements. The average metallicity was |$+$|0.03|$ \pm $|0.05 dex. The dispersion was comparable to the statistical uncertainties of the metallicity measurements; in addition, the metallicities of all 22 stars fell within the dispersion range, indicating their uniform metallicities. A comparison of our results with previous studies confirmed a high probability of metallicity homogeneity in Pleiades.