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- W3157750754 endingPage "A57" @default.
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- W3157750754 abstract "G112-43/44, alias BD+00_2058 A and B, is a metal-poor ([Fe/H] = -1.3) wide-orbit binary star with extreme kinematics. We use high-precision determinations of the chemical compositions of 94 metal-poor dwarf stars in the solar neighbourhood to compare abundance ratios for G112-43/44 with ratios for stars having similar metallicity taking into account the effect of deviations from local thermodynamic equilibrium on the derived abundances, and Gaia EDR3 data are used to compare the kinematics. The abundances of the two components of G112-43/44 agree within 0.05 dex for nearly all elements, but there is a hint of a correlation of the difference in [X/H] with elemental condensation temperature, which may be due to planet-star interactions. The Mg/Fe, Si/Fe, Ca/Fe, and Ti/Fe ratios of G112-43/44 agree with the corresponding ratios for accreted (Gaia-Enceladus) stars, but Mn/Fe, Ni/Fe, Cu/Fe, and Zn/Fe are significantly enhanced. The kinematics show that G112-43/44 belongs to the Helmi streams in the solar neighbourhood and in view of this, we discuss if the abundance peculiarities of G112-43/44 can be explained by chemical enrichment from supernovae events in the progenitor dwarf galaxy of the Helmi streams. Interestingly, yields calculated for a helium shell detonation Type Ia supernova model can explain the enhancement of Mn/Fe, Ni/Fe, Cu/Fe, and Zn/Fe in G112-43/44 and three other alpha-poor stars in the Galactic halo, one of which have Helmi streams kinematics. The helium shell detonation model predicts, however, also enhanced abundance ratios of Ca/Fe, Ti/Fe, and Cr/Fe in disagreement with the observed ratios." @default.
- W3157750754 created "2021-05-10" @default.
- W3157750754 creator A5024135496 @default.
- W3157750754 creator A5054235371 @default.
- W3157750754 creator A5058793416 @default.
- W3157750754 date "2021-07-01" @default.
- W3157750754 modified "2023-10-17" @default.
- W3157750754 title "G 112-43/44: A metal-poor binary star with a unique chemical composition and Helmi stream kinematics" @default.
- W3157750754 cites W147232447 @default.
- W3157750754 cites W1517836715 @default.
- W3157750754 cites W1765928510 @default.
- W3157750754 cites W1936382589 @default.
- W3157750754 cites W1964031925 @default.
- W3157750754 cites W1966690833 @default.
- W3157750754 cites W1987861871 @default.
- W3157750754 cites W1988090704 @default.
- W3157750754 cites W1992687337 @default.
- W3157750754 cites W1994166266 @default.
- W3157750754 cites W1996984257 @default.
- W3157750754 cites W1998016789 @default.
- W3157750754 cites W2001882416 @default.
- W3157750754 cites W2005048610 @default.
- W3157750754 cites W2010306785 @default.
- W3157750754 cites W2013605750 @default.
- W3157750754 cites W2025131951 @default.
- W3157750754 cites W2066293328 @default.
- W3157750754 cites W2068041806 @default.
- W3157750754 cites W2092527085 @default.
- W3157750754 cites W2096471541 @default.
- W3157750754 cites W2097111096 @default.
- W3157750754 cites W2100367748 @default.
- W3157750754 cites W2103024508 @default.
- W3157750754 cites W2118416230 @default.
- W3157750754 cites W2121872350 @default.
- W3157750754 cites W2123829915 @default.
- W3157750754 cites W2142471547 @default.
- W3157750754 cites W2147723881 @default.
- W3157750754 cites W2148966198 @default.
- W3157750754 cites W2157594202 @default.
- W3157750754 cites W2170011509 @default.
- W3157750754 cites W2185407744 @default.
- W3157750754 cites W2200264106 @default.
- W3157750754 cites W2485876312 @default.
- W3157750754 cites W2517710328 @default.
- W3157750754 cites W2743730740 @default.
- W3157750754 cites W2784300499 @default.
- W3157750754 cites W2787960145 @default.
- W3157750754 cites W2798336535 @default.
- W3157750754 cites W2886058984 @default.
- W3157750754 cites W2922658012 @default.
- W3157750754 cites W2950887948 @default.
- W3157750754 cites W2973484775 @default.
- W3157750754 cites W3006524504 @default.
- W3157750754 cites W3007820680 @default.
- W3157750754 cites W3042144866 @default.
- W3157750754 cites W3096229154 @default.
- W3157750754 cites W3098217160 @default.
- W3157750754 cites W3098450115 @default.
- W3157750754 cites W3098804378 @default.
- W3157750754 cites W3100392305 @default.
- W3157750754 cites W3100892956 @default.
- W3157750754 cites W3101317883 @default.
- W3157750754 cites W3101591736 @default.
- W3157750754 cites W3101976511 @default.
- W3157750754 cites W3103513555 @default.
- W3157750754 cites W3104234656 @default.
- W3157750754 cites W3104341043 @default.
- W3157750754 cites W3104375564 @default.
- W3157750754 cites W3105299221 @default.
- W3157750754 cites W3105675745 @default.
- W3157750754 cites W3105708093 @default.
- W3157750754 cites W3105722518 @default.
- W3157750754 cites W3106100364 @default.
- W3157750754 cites W3114792974 @default.
- W3157750754 cites W3122886126 @default.
- W3157750754 cites W3124207654 @default.
- W3157750754 cites W3124597791 @default.
- W3157750754 cites W3125210744 @default.
- W3157750754 cites W3125562979 @default.
- W3157750754 cites W3158853069 @default.
- W3157750754 cites W4213259675 @default.
- W3157750754 cites W4288101989 @default.
- W3157750754 cites W4289238579 @default.
- W3157750754 cites W4289710129 @default.
- W3157750754 cites W4290047213 @default.
- W3157750754 cites W4292399985 @default.
- W3157750754 cites W4292954434 @default.
- W3157750754 cites W4294933874 @default.
- W3157750754 doi "https://doi.org/10.1051/0004-6361/202140826" @default.
- W3157750754 hasPublicationYear "2021" @default.
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