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The Milky Way Revealed by Gaia: The Next Frontier

5–7 Sept 2023
Institute of Cosmos Sciences (ICCUB-IEEC)
Europe/Madrid timezone

Contacte

Session

Welcome and WG4: Gaia Fundamentals: Space and Time (I). Chair: Nick Walton

5 Sept 2023, 09:00
University of Barcelona (Institute of Cosmos Sciences (ICCUB-IEEC))

University of Barcelona

Institute of Cosmos Sciences (ICCUB-IEEC)

Martí i Franqués, 1 08028 Barcelona

Presentation materials

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  1. 105. Welcome to the meeting and Goodbye to the MW-Gaia Action
    Nicholas Walton (IoA)
    05/09/2023, 09:00

    A short overview of the MW-Gaia COST Action, objectives and outcomes.

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  2. 106. Report WG4: Gaia Fundamentals: Space and Time
    Sonia Anton (Univ. Coimbra)
    05/09/2023, 09:25
  3. 98. Close stellar interactions from Gaia (invited talk)
    Nadejda Blagorodnova (ICCUB)
    05/09/2023, 09:35
    Invited talk

    A great fraction of stars are born in binary or multiple systems. For a given stellar population, about a third would be products of binary interaction: stripped stellar companions, semi-detached systems, or stellar mergers. A particularly important phase in the life of a binary is the phase of common envelope, which is responsible for the formation of compact binary systems, such as...

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  4. 59. Dynamical formation of Gaia BH1 in a young star cluster
    Sara Rastello (Universitat de Barcelona)
    05/09/2023, 10:05
    Contributed talk

    Gaia BH1, the first quiescent black hole detected using data from the Gaia mission presents a challenge to existing binary evolution models due to its unusual characteristics, such as a mass ratio of approximately 0.1 and an orbital period that does not align with typical post-common envelope or non-interacting binary systems.
    To investigate its formation, we explore the hypothesis that...

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  5. 68. Young Star Clusters Dominate the Production of Detached Black Hole-Star Binaries
    Ugo Niccolò Di Carlo (SISSA)
    05/09/2023, 10:20
    Contributed talk

    The recent discovery of two detached black hole-star (BH-star) binaries from Gaia's third data release has sparkled interest in understanding the formation mechanisms of these systems. We investigate the formation of these systems by dynamical processes in young open star clusters (SCs) and via isolated binary (IB) evolution, using a combination of direct $N$-body models and population...

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