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
Nov 10
16:30
Dusty common envelope interactions and luminous red novae
Orsola De Marco (Macquarie University)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Nov 12
11:15
SDSS-V BHM: Evidence for a link between X-ray weakness and galactic-scale ionised gas outflows in quasars
Delvin Demke (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Nov 17
16:30
Cosmology and Supernovae through Cosmic Lenses
Sherry Suyu (MPA/TUM)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),

More colloquia

Recent ZAH publications
10/2026
Willcox, R.; Schneider, F. R. N. et al. (inc. Laplace, E.)
Good things always come in 3s: Trimodality in the binary black-hole chirp-mass distribution supports bimodal black-hole formation
A&A 714, A314(2026)

10/2026
Lu, Xing; Walker, Daniel L. et al. (inc. Klessen, Ralf S.; Chevance, Mélanie; Liang, Fu-Heng)
ALMA Central Molecular Zone Exploration Survey (ACES) - IV. Data of the two intermediate-width spectral windows
MNRAS 552, ag255(2026)

10/2026
Teh, Jia Wei; Klessen, Ralf S.; Glover, Simon C. O.; Kreckel, Kathryn
TRINITY: A coupled model of winds, radiation, and photoionised gas in molecular clouds: I. Methods and validation
A&A 714, A226(2026)


More publications