Fakultät für Physik und Astronomie
STEPHEN PHILLIPS hostreviews.co.uk / UNSPLASH

Gaia's "Focused Product Release" of October 2023

Ulrich Bastian , ARI

As an interim between Gaia DR3 (2022) and DR4 (2026), ESA and the science consortium have published five new data sets derived from Gaia observations, including four entirely new data types, and one drastically improved data set. Contrary to the main releases, which address almost any area of astronomy, these data sets are more specialized. In the talk I will briefly describe them: Drastically improved minor-planet orbits, newly discovered gravitational lenses (multiple images of quasars), half a million additional Gaia stars in the core of omega Centauri, the three-dimensional distribution of diffuse interstellar bands in stellar spectra, the radial-velocity variations of long-period pulsating variables. Gaia DR4 will present a large number of new data types, and strong improvements in many of the already established ones. The present data sets are partly meant to enable follow-on work prior to DR4, and partly as "appetizers" for things to come in 2026.

ARI Institute Colloquium
14 Dec 2023, 11:15
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG

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