About the Authors

Jonas Kalderstam

jonask@thep.lu.se

Affiliation Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden

Patrik Edén

Affiliation Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden

Mattias Ohlsson

Affiliation Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JK PE MO. Performed the experiments: JK. Analyzed the data: JK. Wrote the paper: JK PE MO.