Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut


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


Astronomisches Rechen-Institut
Mönchhofstr. 12-14
69120 Heidelberg

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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May 21
Interchange magnetic reconnection as the driver of the fast solar wind
Professor James Drake (Institute for Physical Science and Technology, University of Maryland)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS)
May 23
50 Years of Plate Tectonic - That’s all?
Ulrich A. Glasmacher (Institute of Earth Sciences, Heidelberg UNI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
May 24
Raphael Hviding (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
Hernandez, David M.; Dehnen, Walter
Multiple time-step reversible N-body integrators for close encounters in planetary systems
MNRAS 530, 3870(2024)

Xing, Qianfan; Zhao, Gang et al. (inc. Matsuno, Tadafumi)
Detection of the Actinide Th in an r-process-enhanced Star with Accretion Origin
ApJ 965, 79(2024)

Matsuno, Tadafumi; Starkenburg, Else et al.
Improving metallicity estimates for very metal-poor stars in the Gaia DR3 GSP-Spec catalog
A&A 685, A59(2024)