is the place to be every Friday afternoon if you want to learn more about a variety of research fields while enjoying delicious Fika! We bring together researchers across different universities in Stockholm to share their passion for science and related topics, while nourishing a deep sense of community among junior researchers.

Upcoming

Friday 16:00 @ Nordita 6th floor

The Very High-Energy Sun
Title Image of Talk The Very High-Energy Sun
Title Image of Talk The Very High-Energy Sun
2026-03-13 ✨ Open to juniors* ✨ Tim Linden

The Sun is the dominant optical source in the universe – even in Sweden in January. But what does the Sun look like at very high energies? Fortunately for our DNA - the Sun is not a similarly powerful source at gamma-ray energies. However, over the last few years, we have found bright gamma-ray emission coming from the Sun through a unique mechanism. The Sun acts as a “passive source” that is capable of using its mass and light to convert high-energy charged particles that move throughout the galaxy into gamma-ray emission. I will summarize recent observations of this unique high-energy flux, and discuss they can help us understand our Universe’s most critical source of photons.

*Junior audience is a term that encompasses undergraduate, master's, and PhD students, as well as postdocs.
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