John Heise is professor emeritus at the University of Utrecht, Faculty of Physics and Astronomy and works as senior scientist at the High Energy Astrophysics division (HEA) of the Space Research Organization Netherlands (SRON) in Utrecht;

Postal address:

SRON, Space Research Organization Netherlands
Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
Phone +31 887775727, reception +31 887775600
Fax +31 887775601

Email j.heise@sron.nl