2022

• March 2022: Invited colloquium talk at St. Andrews University, UK

2021

• Nov. 2021: Invited colloquium talk at the Royal Military College, Canada

2020

all activities cancelled due to the Covid19 pandemic

2019

• Nov. 2019: Invited colloquium talk at the Philipps University Marburg, Germany

2017

• Dec. 2017: Invited colloquium talk at IPAG and IRAM, Grenoble, France
• Oct. 31, 2017: Habilitation colloquium at the University of Innsbruck, Austria
• July 2017: Invited colloquium talk at Observatory Nice, France
• March 2017: Invited colloquium talk at Observatory Paris Meudon, France
• Feb. 2017: Invited colloquium talk at Geneva Observatory, Switzerland

2016

• March 2016: Invited colloquium talk at the Institute for Astro- and Particle Physics, Innsbruck, Austria

2015

• Nov. 2015: Invited colloquium talk at the Institute for Astrophysics, University Vienna, Austria

2014

• Dec. 2014: Invited colloquium talk at the Kiepenheuer Institut für Sonnenphysik, Freiburg, Germany

• Aug. 2014: Invited colloquium talk at the Russian Academy of Sciences, Moscow, Russia

• Feb. 2014: Invited seminar talk at the Institute for Astro- and Particle Physics, University of Innsbruck, Austria

2013

• Nov. 2013: Invited colloquium talk at the Argelander Institute, University of Bonn, Germany
• Nov. 2013: Seminar talk at the KU Leuven, Belgium
• Sep. 2013: Invited colloquium talk at the University of Liege, Belgium
• June 2013: Invited colloquium talk at the University of Jena, Germany
• June 2013: Invited colloquium talk at the Thüringer Landessternwarte Tautenburg, Germany

2012

• April 2012: Invited colloquium talk at the Institute of Astronomy, KU Leuven, Belgium

2011

• Nov. 2011: Invited colloquium talk at St. Mary’s University, Halifax, Canada

2010

• Nov. 2010: Invited colloquium talk at the Masaryk University, Brno, Czech Republic