Moa Persson spikar doktorsavhandling

Moa Persson nailed her doctoral thesis and won the prize for best poster

On Friday, Moa Persson nailed her doctoral thesis “Escape to Space or Return to Venus: Ion Flows Measured by Venus Express”. She has also received the award for best student poster at a virtual competition during the Europlanet Science Congress (EPSC).

Moa Persson has implemented her doctoral thesis at the Swedish Institute of Space Physics and Umeå University under the supervision of Associate Professor Yoshifumi Futaana.

On November 13 13, 09.00, Moa Persson will defend her doctoral thesis in the auditorium at the Space Campus in Kiruna.

Doctorol thesis

The award for best student poster was presented during the annual Europlanet Science Congress (EPSC). The competition includes bachelors, masters and PhD students. The conference usually changes places every year, but due to Covid19 it was virtual this year and lasted between the period 21 September and 9 October.

The poster”Global Venus-solar wind coupling and oxygen ion escape” contains research results that show that Venus’ atmosphere is believed to have had a large amount of water on its surface for a long time, but that the atmosphere is now dry.

The Venusian atmosphere is thought to once have contained a large amount of water, but today the atmosphere is very dry. One of the important processes capable of affecting the atmosphere is escape of atmospheric constituents to space, where the interaction between the solar wind, a fast stream of plasma ejected from the Sun, and the Venusian atmosphere is important. In this study, we have shown that the solar wind transmits energy to the atmospheric particles, which allows them to escape, but that only as little as 0.008% of the available solar wind energy is transmitted. This result shows that the Venusian induced magnetosphere efficiently shields the atmosphere from the solar wind, better than both Mars and Earth”, says Moa Persson.

The intention of the Europlanet Science Congress 2020 is to cover a broad area of science topics related to planetary science and planetary missions.

Del av poster
More about EPSC

Moa Persson on the award and having nailed her thesis after four years:

“For me as a PhD student he award means that I get noticed for my research and that I have done a good job of presenting my research visually and that my research is seen as important, unique and good. It feels great! Nailing the thesis was a relief. Now I am waiting to defend it as well”, she says. 

Moa Persson spikar doktorsavhandling
Moa Persson, Swedish Institute of Space Physics and Umeå University, nailed her doctoral thesis 23 October. Photo: Annelie Klint Nilsson
Moa Perssons doctoral thesis. Photo: Annelie Klint Nilsson
Moa Persson och Futaana Yoshifumi
Moa Persson and her supervisor Assoc. Prof. Futaana Yoshifumi. Photo: Annelie Klint Nilsson, IRF


Created by Annelie Klint Nilsson at

Last modified by Annelie Klint Nilsson at