Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut

Address:

Astronomisches Rechen-Institut
Mönchhofstr. 12-14
69120 Heidelberg
Germany
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The Astronomisches Rechen-Institut (ARI) is part of the newly established Centre for Astronomy of Heidelberg University (Zentrum für Astronomie der Universität Heidelberg or ZAH). The other two institutes in the ZAH are the Institute for Theoretical Astrophysics (Institut für Theoretische Astrophysik or ITA) and the State Observatory Königstuhl (Landessternwarte Königstuhl or LSW).

The scientific activities at the ARI cover a broad range of research areas including cosmology, gravitational lensing, galaxy evolution, star clusters, stellar astrophysics, the interstellar medium, astrometry, satellite missions, and calendrical calculations.

The ARI is involved in various national and international scientific networks and collaborations.  The institute plays a leading role in supporting the Gaia satellite mission of the European Space Agency and participates in the ground-based spectroscopic and photometric SDSS, 4MOST, and LSST surveys.

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Next Astro colloquia
Jun 23
16:30
From Cosmic Dawn to Present-Day: Galaxy Formation and Evolution Through Cosmic Time
Rhea-Silvia Remus (LMU / USM)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jun 25
11:15
Tracing Stellar Feedback-Driven Bubbles: From Galactic HII Regions to Nearby Galaxies
Slawa Kabanovic (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jun 30
16:30
Black holes and revelations: unseen companions in stellar binaries
Kareem El-Badry (Caltech)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),

More colloquia

Recent ZAH publications
6/2026
Leroy, Adam K.; Sun, Jiayi et al. (inc. Klessen, Ralf S.; Chevance, Mélanie; Glover, Simon C. O.)
Erratum: "Cloud-scale Gas Properties, Depletion Times, and Star Formation Efficiency per Freefall Time in PHANGS─ALMA" (2025, ApJ, 985, 14)
ApJ 1003, 248(2026)

5/2026
Wu, Kai; Tanikawa, Ataru et al. (inc. Spurzem, Rainer; Arca Sedda, Manuel; Kamlah, Albrecht W. H.; Liu, Boyuan; Vergara, Marcelo C.)
Direct N-body simulations of rotating and extremely massive Population III star clusters
A&A 709, A142(2026)

5/2026
Larkin, C. J. K.; Mackey, J. et al. (inc. Lefever, R. R.; Grebel, E. K.; Sander, A. A. C.)
EWOCS-V: Is Wd1-72 a recent post-interaction WR+O binary?
A&A 710, L9(2026)


More publications