Dark UNiverse Explorations

The Austrian Science Fund (FWF) Special Research Area (SFB) “Dark UNiverse Explorations – DUNE” creates an Austrian research network, connecting scientists at the University of Innsbruck, the University of Vienna, and the Institute for Science and Technology Austria (ISTA). Embedded into large international collaborations, such as the Euclid Consortium and COLIBRE, the interdisciplinary DUNE team probes the nature of the dominant invisible components of the Universe, dark matter and dark energy, by analysing Euclid and JWST observations and combining them with state-of-the-art simulations. 

The general goal of the SFB Dark UNiverse Explorations (DUNE) is to study the dark Universe by confronting key challenges in cosmology and galaxy formation. For a holistic picture, it will use probes across extremely different mass and size ranges, from dwarf galaxies to galaxy clusters. DUNE links the expertise of the observational groups at Innsbruck University (CoIs Grandis, Linke, Marleau, Schrabback) and the ISTA (CoI Matthee), and combines them with the theory and simulation‑focused research at Vienna University (CoIs Hahn, Ploeckinger). With this team, we connect observations with improved model predictions, covering three of the most exciting Euclid & JWST science topics: cosmology using weak lensing data and galaxy clusters, small‑scale cosmological and astrophysical studies using dwarf galaxies, and the physics of galaxies at cosmic noon.

 

News


Start of new PhD Fellows within the SFB-DUNE project

13.04.2026: Isabella Grimaldi (SP 5)
13.04.2026: Sara Tacchetto (SP 5)
02.03.2026: Jonas Krüger (SP 2)

WELCOME!

New FWF Spe­cial Research Area on the Dark Uni­verse

03.12.2025
The University of Innsbruck is coordinating a new FWF special research area on the dark universe, which seeks answers to the biggest questions in modern cosmology.

German article

Events


Main Events

  • 28.09.2026 –02.10.2026

    First full team meating

    Innsbruck

  • 10.03.2026

    Kick-off Event

    at UIBK in HS C (VFH-Haus, Technikerstr. 25)

    16:30 Welcome & Overview of the SFB
    17:10 Break with refreshments
    17:30 Physics Colloquium Talk

More Events

  • 15.07.2026

    Placeholder

    Innsbruck

Projects


SP2

Linking dark matter halo shapes to intrinsic alignments

Lead: Laila Linke

SP3

Ray‑tracing through fast differentiable simulations

Lead: Oliver Hahn

SP4

Accelerating cosmological inference from cluster counts

Lead: Sebastian Grandis

SP5

Extreme cosmic systems: dwarf galaxy formation & evolution

Lead: Francine Marleau

SP6

Testing galaxy formation and cosmology on small scales

Lead: Sylvia Ploeckinger

SP7

A Euclid & JWST synergy: Redshift tests at cosmic noon

Lead: Jorryt Matthee

SP8

A Euclid & JWST synergy: Weak lensing of distant galaxies

Lead: Tim Schrabback

Members


The DUNE Team standing in front of the FWF building.

The DUNE team from left to right: Oliver Hahn (University of Vienna), Laila Linke (University of Innsbruck), Sebastian Grandis (University of Innsbruck), Francine Marleau (University of Innsbruck), Sylvia Ploeckinger (University of Vienna), Tim Schrabback (University of Innsbruck) und Jorryt Matthee (ISTA).

Dr. Sebastian Grandis

Senior Scientist

sebastian.grandis@uibk.ac.at

Project: SP4 + SP3, SP8

Isabella Grimaldi, MSc

PhD Student

isabella.grimaldi@uibk.ac.at

Project: SP5

Univ.‑Prof. Dr. Oliver Hahn

Full Professor

oliver.hahn@univie.ac.at

Project: SP3 + SP2, SP4, SP6

Dr. Irmgard Juen

Administrative Assistant

irmgard.juen@uibk.ac.at

Jonas Krüger, MSc

PhD Student

jonas.krueger@uibk.ac.at

Project: SP2

Dr. Laila Linke

FWF/ESPRIT Fellow

laila.linke@uibk.ac.at

Project: SP2 + SP3, SP6, SP8

Univ.-Prof. Dr. Francine Marleau

Full Professor

francine.marleau@uibk.ac.at

Project: SP5 + SP6

Ass.-Prof. Dr. Jorryt J.A. Matthee

Assistant Professor

jorryt.matthee@ist.ac.at

Project: SP7 + SP8

Dr. Sylvia Ploeckinger

FWF/Elise‑Richter Fellow

sylvia.ploeckinger@univie.ac.at

Project: SP6 + SP2, SP3, SP5

Univ.-Prof. Dr. Tim Schrabback

Full Professor

tim.schrabback@uibk.ac.at

Project: SP8 + SP2, SP3, SP4, SP7

Sara Tacchetto, MSc

PhD Student

sara.tacchetto@uibk.ac.at

Project: SP5

Publications


Publications forthcoming.

Contact


Administrative Assistant

Dr. Irmgard Juen

+43 512 507 52057
sfb-dune@uibk.ac.at

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