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
Jul 08
16:30
Compact star mergers, kilonovae and r-process element production
Stephen Smartt (University of Oxford )
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jul 10
11:15
From Debris Disks to Million-Body Clusters: Planetary Perturbations, Stellar Interactions, and DRAGON-III's First Insights
Kai Wu (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jul 11
11:00
Observational constraints on massive black holes in the first billion years
Hannah Übler (MPE)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
6/2025
Britavskiy, N.; Mahy, L. et al. (inc. Schneider, F. R. N.; Sander, A. A. C.; Ramachandran, V.; Bernini-Peron, M.)
Binarity at LOw Metallicity (BLOeM): Multiplicity of early B-type supergiants in the Small Magellanic Cloud
A&A 698, A40(2025)

6/2025
Ha, Triet; Rupke, David S. N. et al.
Deep Ultraviolet, Emission-line Imaging of the Makani Galactic Wind
ApJ 986, 87(2025)

6/2025
Villaseñor, J. I.; Sana, H. et al. (inc. Schneider, F. R. N.; Sander, A. A. C.; Ramachandran, V.)
Binarity at LOw Metallicity (BLOeM): Enhanced multiplicity of early B-type dwarfs and giants at Z = 0.2 Z
A&A 698, A41(2025)