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
Jul 01
16:30
Unlocking the various evolutionary pathways of sun-like stars
Nicole Reindl (Heidelberg University (ZAH/LSW))
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jul 03
11:15
The future of massive star atmosphere models: Multi-D RHD
Nicolas Moens (KU Leuven)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jul 04
11:00
A brief history of the Solar System's dynamical evolution
Philippine Griveaud (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
6/2025
Patrick, L. R.; Lennon, D. J. et al. (inc. Sander, A. A. C.; González-Torà, G.; Bernini-Peron, M.; Schneider, F. R. N.)
Binarity at LOw Metallicity (BLOeM): The multiplicity properties and evolution of BAF-type supergiants
A&A 698, A39(2025)

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
Parmentier, Geneviève
Cracking the Relation Between Mass and 1P-star Fraction of Globular Clusters. III. Initial Distributions of In Situ and Ex Situ Clusters
ApJ 986, 139(2025)