Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut

Directors:

Prof. Dr. Eva Grebel   and
Prof. Dr. Joachim Wambsganß
Tel: +49 6221 54 1801 (Secretary)
FAX: +49 6221 54 1888

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, stellar dynamics, astrometry, satellite missions, and calendrical calculations.

The ARI is involved in various local, European, and worldwide scientific networks and collaborations. The ARI plays a leading role in the preparation of the Gaia satellite mission of the European Space Agency. The ARI also operates a special high-performance computer for calculating gravitational interactions.

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News
Colloquia
Feb 14
11:00
(Satellite) Galaxies and the Multiphase Cosmic Baryon Cycle in Cosmological Simulations
Eric Rohr (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Feb 21
11:00
TBD
Myriam Benisty (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Feb 28
11:00
TBD
Mark McCaughrean (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
1/2025
Flammini Dotti, F.; Kouwenhoven, M. B. N. et al. (inc. Spurzem, R.)
Dynamical evolution of massless particles in star clusters with NBODY6++GPU-MASSLESS: I. Free-floating MLPs
A&A 693, A166(2025)

2/2025
van Son, L. A. C.; Roy, S. K. et al. (inc. Sander, A. A. C.)
Not Just Winds: Why Models Find That Binary Black Hole Formation Is Metallicity-dependent, while Binary Neutron Star Formation Is Not
ApJ 979, 209(2025)

1/2025
Qin, Songmei; Zhong, Jing et al. (inc. Wu, Kai)
Unveiling the binary nature of NGC 2323
A&A 693, A317(2025)