Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut

Address:

Astronomisches Rechen-Institut
Mönchhofstr. 12-14
69120 Heidelberg
Germany
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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
Nov 18
16:30
From Data to Laws: Symbolic Regression and Differentiable Analytic Networks for (Astro)physics
Rodrigo Ibata (Observatoire Astronomique de Strasbourg)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Nov 20
11:15
Galactic Archeology, Near and (Sort of ) Far
Gail Zasowski (University of Utah, ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Nov 21
11:00
TBD
Juergen Blum (TU Braunschweig)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
11/2025
Comerón, F.; Pasquali, A. et al. (inc. Brillerty, L.)
The origin of the luminous blue variable Wray 15─0751
A&A 703, A50(2025)

10/2025
Dehnen, Walter
The gravitational potential of spiral perturbations: I. The 2D (razor-thin) case
A&A 702, A192(2025)

11/2025
Sabhahit, Gautham N.; Vink, Jorick S.; Sander, Andreas A. C.; Ramachandran, Varsha
Minimum and maximum mass-luminosity relations for stripped stars
A&A 703, A40(2025)