Bastian Ulrich - Gaia
Gaia was proposed in 1993 and since then, many people have been involved in the Gaia mission, whether at ESA, at industry side or at one of the institutes involved in the Gaia data processing. The Gaia Data Processing and Analysis Consortium (DPAC) is a collaboration which consists of around 450 scientists and engineers.
The list of Gaia contributors presented here should not be considered a complete representation of the entire consortium. A more complete list of Gaia contributors that were involved in the creation of the Gaia catalogues can be obtained from the author lists of the Gaia Collaboration papers (for Gaia Data Release 1 see here, for Gaia Data Release 2 see here, for Gaia Early Data Release 3 see here). A history of contributions to the Gaia mission can be found from the acknowledgements given with each data release.
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Astronomisches Rechen-Institut, Heidelberg
Uli Bastian was staff astronomer at ARI, Heidelberg, where he co-authored the FK5, PPM, Hipparcos and Tycho star catalogues. He entered the Hipparcos project in 1983, when the preparations for the data treatment had just started. He mainly worked on the Tycho data reduction, but contributed to the Input Catalogue and the main-grid reductions as well.
He was part of the Gaia community from its beginnings in 1992/3, and had worked full time for Gaia since 2002. He was a member of the Gaia Science Team (2003-2007) and of the DPAC Executive (2005-2016). Until his retirement in 2017 he was leading the preparations and execution of the `Core Processing' part of Gaia's data reduction.
Since then he has remained active in the DPAC consortium, especially in the astrometric work for Gaia DR2 and DR3.
Uli's scientific hobbies include variable stars, galactic structure, the popularisation of astronomy - and field research on butterflies. His most active non-scientific hobby is dancing, especially Argentine tango.
[Published: 13/06/2005 - Updated: 30/01/2020]
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