Michaël Gillon

On February 22, 2017, NASA officially announced the discovery of seven exoplanets by an international team of astronomers, led by Michaël Gillon. These exoplanets, named TRAPPIST-1 b, c, d, e, f, g, h, were detected using the European Southern Observatory's TRAPPIST telescope. These seven exoplanets, located at 39 light-years from our Sun, orbit the dwarf star TRAPPIST-1. Three of these exoplanets had already been discovered in 2015 by the international team using the Trappist telescope, but the collaboration with Nasa has expanded those discoveries.

In 2013, he was appointed member of the CHEOPS scientific team. He represents Belgium there with his colleague Valerie Van Grootel.

Back to the University of Liege in January 2009, he continues his work on the detection of exoplanets and their physicochemical characterization3. In the framework of the TRAPPIST project, he is scientific leader and principal investigator for exoplanets. This project led to numerous publications and the detection of about 30 transiting exoplanets between late 2010 and mid 20123. He initiated an international research observing for the first time the thermal emission of a super-Earth: 55 Cancri e.

Attracted by research, he became a doctoral student in astrophysics in 2003, after hesitating between genetics and biochemistry. In March 2006, he defended his PhD thesis on the improvement of the photometry of exoplanet transits in the framework of the CoRoT project. He then left the University of Liege for a postdoctoral stay of almost three years at the observatory of the University of Geneva. During this stay, he participated in the discovery of a hot Jupiter: WASP-18 b.

Michaël Gillon (born 1974) is a Belgian astronomer and astrophysicist. His research focuses on exoplanets and he conducts his research at the University of Liège. He holds a master's degree in biochemistry and astrophysics and also a PhD in astrophysics, and completed his post-doctorate at Geneva Observatory. Co-discoverer of exoplanets such as WASP-18 b and the rings of (10199) Chariclo, he is a researcher at the Institute of Astrophysics and Geophysics of the Department of Astrophysics, Geophysics and Oceanography and co-director of the Astrobiology Research Unit of the University of Liège (Belgium). Michaël Gillon is at the origin of the discovery of the TRAPPIST-1 exoplanetary system.