322 citations · 3.7k across the 69 of their papers we have counts for
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Abundances of alpha-Process Elements in Thin-Disk, Thick-Disk, and Halo Stars of the Galaxy: Non-LTE Analysis
Lyudmila Mashonkina, Maria Neretina, Tatyana Sitnova +1
The atmospheric parameters and abundances of Mg, Si, Ca, and Ti have been determined for 20 stars using the Gaia DR2 parallaxes, high-resolution spectra, and the non-local thermody…
Influence of inelastic collisions with hydrogen atoms on the non-LTE line formation for Fe I and Fe II in the 1D model atmospheres of late-type stars
Lyudmila Mashonkina, Tatyana Sitnova, Svetlana A. Yakovleva +1
Iron plays a crucial role in studies of late-type stars. In their atmospheres, Fe I is the minority species and its lines are subject to the departures from LTE. In contrast, one b…
Contribution of type Ia supernovae to the chemical enrichment of the ultra-faint dwarf galaxy Bootes I
Yu. V. Pakhomov, L. I. Mashonkina, T. M. Sitnova +1
For three stars in the ultra-faint dwarf (UFD) galaxy Bootes I we have determined the atmospheric parameters, performed a new reduction of high-resolution spectra from the Subaru a…
Even-to-Odd Barium Isotope Ratio in Selected Galactic Halo Stars
Lyudmila Mashonkina, Andrey K. Belyaev
We have updated the Ba II model atom by taking into account the H I impact excitation with the rate coefficients from the quantum-mechanical calculations of Belyaev and Yakovleva (…