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
Jan 17
11:00
Dancing JWST spectra of an enigmatic and evolving world
Niall Whiteford (AMNH)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Jan 21
16:30
Massive stars evolution: Progresses and challenges
Dr Sylvia Ekstroem (University of Geneva)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS)
Jan 23
11:15
Relatively young thick discs in low-mass star-forming spiral galaxies
Natascha Sattler (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG

Recent publications
1/2025
Grishin, Kirill A.; Mei, Simona et al. (inc. Wylezalek, Dominika)
Spectroscopic confirmation of the galaxy clusters CARLA J0950+2743 at z = 2.363 and CARLA-Ser J0950+2743 at z = 2.243
A&A 693, L1(2025)

12/2024
Deshmukh, K.; Sana, H. et al. (inc. Sander, A. A. C.; Lefever, R. R.)
Investigating 39 Galactic Wolf-Rayet stars with VLTI/GRAVITY: Uncovering a long-period binary desert
A&A 692, A109(2024)

12/2024
Backs, F.; Brands, S. A. et al. (inc. Sander, A. A. C.; Ramachandran, V.; Bernini-Peron, M.)
X-Shooting ULLYSES: Massive stars at low metallicity: VI. Atmosphere and mass-loss properties of O-type giants in the Small Magellanic Cloud
A&A 692, A88(2024)