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SIEBERT , Arnaud

Last name: SIEBERT

First name: Arnaud

December 2023 (v1)

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Proceedings of the annual meeting of the French Society of Astronomy & Astrophysics

N'Diaye, Mamadou Siebert, Arnaud Lagarde, Nadège

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Uploaded on: November 30, 2023
December 20, 2021 (v1)

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SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics.

Siebert, Arnaud Baillie, Kevin Lagadec, Eric

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Uploaded on: December 3, 2022
2023 (v1)

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Proceedings of the annual meeting of the French Society of Astronomy & Astrophysics

N'Diaye, Mamadou Siebert, Arnaud Lagarde, Nadège

International audience

Uploaded on: October 31, 2024
October 25, 2024 (v1)

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Could very low-metallicity stars with rotation-dominated orbits have been driven by the bar?

Yuan, Zhen Li, Chengdong Martin, Nicolas

The most metal-poor stars (e.g., [Fe/H] ≤ -2.5) are the ancient fossils from the early assembly epoch of our Galaxy. They very likely formed before the the thick disk. Recent studies have shown that a non-negligible fraction of them have prograde planar orbits, which means that their origin is a puzzle. It has been suggested that a later-formed...

Uploaded on: November 6, 2024