Foteini Oikonomou

And many thanks to Aleksander Stokke Båtnes for the photo!

10.10.2025 15:41 — 👍 0    🔁 0    💬 0    📌 0

Thank you all for coming and for making this a very fruitful start!

10.10.2025 15:38 — 👍 0    🔁 0    💬 0    📌 0

Next year we’ll spend two months together in Oslo working on my Young CAS funded project on multimessenger emission from TDEs.

10.10.2025 15:37 — 👍 0    🔁 0    💬 1    📌 0

It was wonderful to host Teresa Bister, Damiano Fiorillo, Karri Koljonen, and Bing Theodore Zhang at NTNU to kick-off our Centre of Advanced Study Oslo Collaboration!

10.10.2025 15:36 — 👍 3    🔁 0    💬 2    📌 0

Researchers’ Night at NTNU last Friday! Our group brought a 3D-printed mini-array of Auger surface detectors and talked to high school students about cosmic rays and black holes.

09.10.2025 07:06 — 👍 3    🔁 1    💬 0    📌 1

During #ICRC2025 we had the immense fortune to be shown around the Jungfraujoch research station. We saw, among other things, the neutron monitor and the guestbook signed by Pierre Auger and his students in 1934-38.

04.08.2025 18:59 — 👍 2    🔁 0    💬 0    📌 0

Ultra-high-energy cosmic rays from ultra-fast outflows of active galactic nuclei ABSTRACT. We investigate ultra-fast outflows (UFOs) in active galactic nuclei (AGN) as potential sources of ultra-high-energy cosmic rays (UHECRs). We focu

A telltale sign that this is the case would be ~10 PeV neutrinos in spatial coincidence with UFO-hosting AGN, which may be found with e.g. likelihood stacking. Link to the paper academic.oup.com/mnras/articl...

26.05.2025 20:41 — 👍 2    🔁 0    💬 0    📌 0

We found that UHECRs from these environments can fill the transition region between Galactic and extragalactic CRs usually referred to as „Component B“ and that they explain the UHECR composition in this energy range surprisingly well.

26.05.2025 20:38 — 👍 0    🔁 0    💬 1    📌 0

Unravelling the origin of mysterious radiation Cosmic radiation occasionally contains enormous amounts of energy, but we don’t know why or where this radiation comes from.

A very nice popular summary of our recent work on whether ultra-high energy cosmic rays may be accelerated in AGN ultrafast outflows by @sbrandslet.bsky.social norwegianscitechnews.com/2025/05/unra...

26.05.2025 20:34 — 👍 4    🔁 0    💬 1    📌 0

Polar stratospheric clouds over Trondheim today

16.01.2025 19:25 — 👍 7    🔁 0    💬 0    📌 0