European Space Astronomy Centre
Alex joined the Gaia project in 2007 after completing his PhD at Ecole des Mines de Paris. He worked at the Astronomisches Rechnen-Institut in the Center for Astronomy of Heidelberg University on sphere reconstruction methods, and collaborated with Lund Observatory to develop AgisLab and the conjugate gradient algorithm used in AGIS. In 2012, Alex went to Dresden University at the Lorhmann-Observatorium to study the impact of basic angle variations on the AGIS solution and to investigate some mitigation possibility such as VBAC. His research led him to construct and analyse a new family of pre-conditioners designed for global astrometry.
In January 2015, Alex moved to the Gaia Science Operation Centre at ESAC in Madrid to support the AGIS team processing the incoming data and computing the first astrometric solutions.
Gaia people archive