KETJU
The KETJU project, funded by the European Research Council (ERC) and the Academy of Finland (AoF), studies the dynamics and impact of supermassive black holes using numerical simulations. The code that enables these simulation is publicly available.
SIBELIUS
The SIBELIUS project, also funded by the Academy of Finland (AoF), investigates the formation and evolution of the Local Group of galaxies in their true cosmic environment by utilising constrained numerical simulations.
Other research topics of our group members include the formation and evolution of stellar clusters, radiative transfer in the vicinity of compact objects, the formation of the first supermassive black holes, and the formation and evolution of massive galaxies.
Latest News
Published Article: No certainty about the predicted Milky Way - Andromeda collision
Our recent article challenges the status quo of an unavoidable collision between our Galaxy and our nearest neighbour - the Andromeda galaxy. The article has featured in a number of press releases (see here for more information): the University of Helsinki release can be found here.
New group members: The summer students and visiting students for 2025 have joined the group
The research group welcomes Esra Verspui, Viola Varga and Leevi Mänttäri, who have joined the group for three months over the summer period. Esra, Viola and Leevi will be working on their respective Master thesis over the summer. In addition, Erwann Quelllec Micheau (visiting student from Université Paul Sabatier - Toulouse III) has been working in the group for three months on his Bachelor thesis.
Published Article: The emperor’s new arc: gigaparsec patterns abound in a ΛCDM universe
In this article, we study the recent discoveries of large-scale features in the structure of the Universe that extend over hundreds of megaparsecs in apparent conflict with the standard model of cosmology. Using the very large FLAMINGO-10K simulation we show that such patterns are, in fact, commong and expected in a ΛCDM universe.
Contact
For any enquiries, please contact Prof. Peter Johansson