Ultracool dwarfs in Gaia

Céline Reylé

Ultracool dwarfs in Gaia

Solar and Stellar Astrophysics 2025-02-11 v1 Astrophysics of Galaxies

Authors: Céline Reylé

Abstract

The Gaia optical observations are not the most suitable spectral domain for studying the low-mass, faintest and reddest part of the main sequence. Nevertheless, the large number of objects observed with an unprecedented precision, including trigonometric parallax, makes it an unrivaled dataset for studying the stellar-substellar boundary. In this paper, I review the contribution of the successive catalogues offered by the Gaia mission to study the low-mass, ultra-cool objetcs. I also present further characterisations and scientific exploitations of the Gaia sample.

Keywords

gaia astrometry

Cite

@article{arxiv.2502.06198,
  title  = {Ultracool dwarfs in Gaia},
  author = {Céline Reylé},
  journal= {arXiv preprint arXiv:2502.06198},
  year   = {2025}
}

Comments

Evry Schatzman School 2023: Stellar physics with Gaia

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