20-24 March 2023
Haus H, Telegrafenberg
Europe/Berlin timezone

Precise distances from Gaia astrometry and large-scale spectroscopic surveys with StarHorse

20 Mar 2023, 12:53
2m
Haus H, Telegrafenberg

Haus H, Telegrafenberg

Potsdam, Germany
Poster SESSION 1: From ground and space: motions, distances, chemistry and star formation measurements SESSION 1: From ground and space: motions, distances, chemistry and star formation measurements

Speaker

Anna Queiroz (AIP)

Description

The ESA's astrometric mission Gaia has added an invaluable wealth of astrometric and photometric data for more than a billion stars in our Galaxy (Gaia Collaboration et al. 2018). The synergy between Gaia's third data release, EDR3, and large scale-spectroscopic surveys give us comprehensive information about individual stars in the Milky Way. To complement these data sets, we deliver new catalogues (10 million stars) of distance, extinction, masses, and additional parameters produced with the Bayesian isochrone-fitting code StarHorse (Queiroz et al. 2018). These results are crucial for the study of Milky Way dynamics and the characterization of disrupted dwarf galaxies; we show applications of our produced data to the study of Sagittarius and Gaia Enceladus. The resulting catalogues are essential to model the Milky Way's chemo-dynamical history and further understand the formation of disk galaxies.

Primary author

Presentation Materials