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 21
11:00
Young massive stars and their effect on planet formation
Macla Ramirez-Tannus: eXtreme UV Environments
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)
Feb 28
11:00
After ELT: Ground-Based Telescopes and Instruments for 2050 and Beyond
Tom Herbst (MPIA)
Königstuhl Kolloquium
MPIA lecture hall,

Recent publications
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)

2/2025
Fukushima, Tetsuya; Chiba, Masashi et al. (inc. Matsuno, Tadafumi)
Final results for mapping the Milky Way's stellar halo with blue horizontal branch stars selected from the Subaru Hyper Suprime-Cam survey
PASJ 77, 178(2025)

1/2025
Lombardo, L.; Hansen, C. J. et al. (inc. Koch-Hansen, A. J.)
Chemical Evolution of R-process Elements in Stars (CERES): III. Chemical abundances of neutron capture elements from Ba to Eu
A&A 693, A293(2025)