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
Mar 06
11:00
Breaking the telescope size barrier with mosaics
Tom Herbst (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Mar 13
11:00
TBD
Rolf Kuiper (Uni Duisburg)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Mar 13
11:00
Modeling accretion and ejection phenomena in star and planet formation
Rolf Kuiper (Uni Duisburg)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

More colloquia

Recent ZAH publications
2/2026
Sarbadhicary, Sumit K.; Long, Knox S. et al. (inc. Li, Jing; Kreckel, Kathryn; Egorov, Oleg V.)
SDSS-V LVM: Collisionless Shocks in the Supernova Remnant RCW86
ApJ 998, 278(2026)

2/2026
Flammini Dotti, Francesco; Kouwenhoven, Mattheus Bartholomeus Nicolaas et al. (inc. Spurzem, Rainer; Wu, Kai)
Dynamical evolution of massless particles in star clusters with NBODY6++GPU-MASSLESS: II. The long-term evolution of free-floating comets
A&A 706, A219(2026)

3/2026
Yang, Hongjing; Zang, Weicheng et al. (inc. Hundertmark, Markus; Tsapras, Yiannis)
KMT-2025-BLG-1616Lb: First Microlensing Bound Planet From DREAMS
AJ 171, 151(2026)


More publications