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
Jul 21
16:30
Distant Quasars: The Observational Key to the Formation of Structure Across Scales
Sarah Bosman (Heidelberg University (ITP))
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jul 23
11:15
Hot, massive stars and their winds: New insights and open puzzles
Andreas Sander (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jul 24
11:00
TBA
David Hogg (NYU)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

More colloquia

Recent ZAH publications
6/2026
Ritter, Jelena; Wang, Wuji et al. (inc. Wylezalek, Dominika)
Exploring the gaseous halos of z > 3 radio galaxies with UVES and JWST/NIRSpec
A&A 710, A229(2026)

6/2026
Fabricius, M.; Saglia, R. et al. (inc. Zinchenko, I. A.)
Euclid: Quick Data Release (Q1) ─ Secondary nuclei in early-type galaxies
A&A 711, A39(2026)

6/2026
Lim, Dongwook; Yun, Sol et al. (inc. Koch-Hansen, Andreas J.)
Chemical signatures of planetary systems in their host stars: Near-infrared spectroscopy of four planet-hosting wide binaries
A&A 710, A351(2026)


More publications