Abundance of zirconium in the atmospheres of red giants in Galactic globular cluster 47 Tuc. (arXiv:1911.02938v1 [astro-ph.SR])
<a href="http://arxiv.org/find/astro-ph/1/au:+Kolomiecas_E/0/1/0/all/0/1">Edgaras Kolomiecas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dobrovolskas_V/0/1/0/all/0/1">Vidas Dobrovolskas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kucinskas_A/0/1/0/all/0/1">Arūnas Kučinskas</a>
We determined zirconium abundance in the atmospheres of 327 red giant branch
(RGB) stars in the globular cluster 47 Tuc. The 1D LTE abundances were obtained
from the archival VLT GIRAFFE spectra, using 1D hydrostatic ATLAS9 stellar
model atmospheres and synthetic Zr I line profiles computed with the SYNTHE
package. The average zirconium abundance determined in the sample of RGB stars,
[Zr/Fe] = +0.38 +/- 0.12, agrees well with zirconium abundances obtained at
this metallicity in the Galactic field stars, as well as with those observed in
other Galactic globular clusters.
We determined zirconium abundance in the atmospheres of 327 red giant branch
(RGB) stars in the globular cluster 47 Tuc. The 1D LTE abundances were obtained
from the archival VLT GIRAFFE spectra, using 1D hydrostatic ATLAS9 stellar
model atmospheres and synthetic Zr I line profiles computed with the SYNTHE
package. The average zirconium abundance determined in the sample of RGB stars,
[Zr/Fe] = +0.38 +/- 0.12, agrees well with zirconium abundances obtained at
this metallicity in the Galactic field stars, as well as with those observed in
other Galactic globular clusters.
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