Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut

Address:

Astronomisches Rechen-Institut
Mönchhofstr. 12-14
69120 Heidelberg
Germany
Directions

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
May 13
16:30
The tumultuous life of early galaxies: bursty star formation and the build-up of disks
Sandro Tacchella (University of Cambridge)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
May 15
11:15
Tracing the Journey of Major Merger Progenitors with the 54-band J-PAS Survery
Sepideh Eskandarlou (CEFCA, Spain)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
May 16
11:00
Measuring atmospheric dynamics in exoplanet atmospheres from the ground
Julia Seidel (ESO/OCA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
5/2025
Ettorre, Greta; Mazzi, Alessandro et al. (inc. Facchini, Pietro)
Strikingly high fraction of fast rotators in Magellanic Cloud star clusters
MNRAS 539, 2537(2025)

5/2025
Mang Román, Armin; Zeidler, Peter et al. (inc. Sander, A. A. C.; Ramachandran, V.)
First JWST/NIRSpec Spectroscopy of O Stars in the Small Magellanic Cloud
ApJ 984, L49(2025)

4/2025
Chown, Ryan; Leroy, Adam K. et al. (inc. Kreckel, Kathryn; Klessen, Ralf S.; Egorov, Oleg V.; Chevance, Mélanie)
Polycyclic Aromatic Hydrocarbon and CO(2–1) Emission at 50–150 pc Scales in 70 Nearby Galaxies
ApJ 983, 64(2025)