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 09
16:30
NLTE effects in the atmospheres of ultra-hot Jupiters
Luca Fossati (Space Research Institute, Austrian Academy of Sciences)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jun 10
14:00
Evolution of Globular Cluster Systems from High Redshift to the Present
Oleg Gnedin (University of Michigan)
ARI Special Colloquium
ARI, Library lounge
Jun 11
11:15
Investigating Galaxy-Merger Rates in Euclid Q1 with Semi-Supervised Machine Learning
Laslo Ruhberg (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG

More colloquia

Recent ZAH publications
5/2026
Hidalgo-Pineda, Fernando; Gronke, Max et al.
The launching of galactic winds from a multiphase ISM
MNRAS 548, ag539(2026)

4/2026
Singh, Amrita; Blanc, Guillermo A. et al. (inc. Sattler, Natascha; Egorova, Evgeniya; Egorov, Oleg; Kreckel, Kathryn)
SDSS-V LVM: A Spatially Resolved Study of the Physical Conditions and the Chemical Abundance Discrepancy in the Lagoon Nebula (M 8)
ApJ 1001, 238(2026)

4/2026
Rajkumar, A. R.; Bayo, A. et al. (inc. Hundertmark, M.)
Long-term monitoring of WASP-19 b: Signs of apsidal precession and molecular signatures
A&A 708, A313(2026)


More publications