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HD 219943


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Trends in copper and zinc abundances for disk and halo stars
Results are presented of spectroscopic investigations of the Cu and Znabundances in 40 disk and halo stars. The results confirmed and extendedthe previous findings of Sneden and Crocker (1988). It is shown that theZn abundances closely track the overall metallicities: Zn/M = +0.04 + or- 0.02. However, all metal-poor stars displayed Cu deficiencies, whichappear to vary linearly with metallicity: Cu/M = 0.38(M/H) + 0.15. TheCu-abundance trend in giants of 15 globular clusters is in goodagreement with that of the field stars. The nucleosynthesis implicationsof the obtained results are discussed.

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观测天体数据

星座:印第安座
右阿森松:23h20m52.66s
赤纬:-69°16'03.5"
视星:8.742
距离:194.553 天文距离
右阿森松适当运动:55.8
赤纬适当运动:27.2
B-T magnitude:10.089
V-T magnitude:8.854

目录:
适当名称   (Edit)
HD 1989HD 219943
TYCHO-2 2000TYC 9338-1558-1
USNO-A2.0USNO-A2 0150-20356097
HIPHIP 115276

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