Preliminary list:

• Friedrich Anders (ICCB Barcelona University, Barcelona, Spain)
• Anthony Brown (Leiden Observatory, Leiden University, The Netherlands)
• Roelof de Jong (Leibniz Institute for Astrophysics Potsdam (AIP))
• Matti Dorsch (Potsdam University, Germany)
• Francesca Fragkoudi (Durham University, UK)
• Ortwin Gehrard (MPE, Garching, Germany)
• Guillaume Guiglion (MPIA, Heidelberg, Germany)
• Mairi  O'´Brian (Warnick University, UK)
• Lea Marques (Leibniz Institute for Astrophysics Potsdam, Germany (AIP))
• Andrea Miglio (Bologna University, Italy)
• Josefina Montalban (INAF-Osservatorio Astrofisico di Catania, Italy)
• Benoit Mosser (Paris Observatory, France)
• Samir Nepal (Sydney Univesity, Australia)
• Anna Barbara Queiroz (Instituto de Astrofisica de Canarias - IAC, Spain)
• Sergio Simon-Diaz (Instituto de Astrofisica de Canarias - IAC, Spain)

• Matthias Steinmetz (Leibniz Institute for Astrophysics Potsdam (AIP))