T. Sitnova

activity

20232025

most citedUnlocking the mystery of Sr synthesis in the early Galaxy through analysis of barium isotopes in very metal-poor stars

7 citations · 19 across the 6 of their papers we have counts for

collaborators

Showing astro-ph.GAShow all

3 papers · 1 filter

astro-ph.GA2025★ 5 cited

The Pristine survey: XXVII. The extremely metal-poor stream C-19 stretches over more than 100 degrees

Zhen Yuan, Tadafumi Matsuno, Tatyana Sitnova +14

The discovery of the most metal-poor stream, C-19, provides us with a fossil record of a stellar structure born very soon after the Big Bang. In this work, we search for new C-19 m…

astro-ph.GA2024

HR-GO I: Comprehensive NLTE abundance analysis of the Cetus stream

T. M. Sitnova, Z. Yuan, T. Matsuno +8

Dwarf galaxy streams encode vast amounts of information essential to understanding early galaxy formation and nucleosynthesis channels. Due to the variation in the timescales of st…

astro-ph.GA2023

The Pristine survey -- XXII. A serendipitous discovery of an extremely Li-rich very metal-poor giant and a new method of $^{6}$ Li/ $^{7}$ Li isotope measurement

T. M. Sitnova, T. Matsuno, Z. Yuan +5

We report the serendipitous discovery of a very metal-poor (VMP) Li-rich giant star ( $T_{eff}$ = 4690 $\pm$ 80 K, log g = 1.34 $\pm$ 0.13, [Fe/H] = $- 2.43 \pm$ 0.07). We analyse the…

The Pristine survey: XXVII. The extremely metal-poor stream C-19 stretches over more than 100 degrees

HR-GO I: Comprehensive NLTE abundance analysis of the Cetus stream

The Pristine survey -- XXII. A serendipitous discovery of an extremely Li-rich very metal-poor giant and a new method of 6Li/7Li isotope measurement

The Pristine survey -- XXII. A serendipitous discovery of an extremely Li-rich very metal-poor giant and a new method of $^{6}$ Li/ $^{7}$ Li isotope measurement