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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News
Colloquia
Jan 22
11:15
Galaxy Clusters in a Cosmological Context
Daniel Wik (University of Utah, ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jan 23
11:00
TBA
Myriam Benisty (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Jan 23
11:00
The Dynamics of Planet Formation
Myriam Benisty (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
1/2026
Kollmeier, Juna A.; Rix, Hans-Walter et al. (inc. Wylezalek, Dominika; Sattler, Natascha; Li, Jing; Kreckel, Kathryn; Grebel, Eva K.; Glover, Simon; Egorova, Evgeniya; Egorov, Oleg)
Sloan Digital Sky Survey. V. Pioneering Panoptic Spectroscopy
AJ 171, 52(2026)

1/2026
Seidl, Benedikt S.; Gronke, Max et al.
Multi-cloud crushing ─ the collective survival of cold clouds in galactic outflows
MNRAS 545, f2016(2026)

12/2025
Dutta, Alankar; Sharma, Prateek; Gronke, Max
Fading in the flow: suppression of cold gas growth in expanding galactic outflows
MNRAS 544, 4621(2025)