Ruprecht-Karls-Universität Heidelberg

Astronomisches Rechen-Institut

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, 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
May 06
16:30
New Tricks for the Analysis of Stellar Spectra
Carlos Allende Prieto (Instituto de Astrofisica de Canarias (IAC) )
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
May 08
11:15
Improving the Milky Way star cluster census with Gaia and machine learning
Emily Hunt (MPIA)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
May 09
11:00
TBA
Oscar Carrion-Gonzalez (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
4/2025
Chown, Ryan; Leroy, Adam K. et al. (inc. Kreckel, Kathryn; Klessen, Ralf S.; Egorov, Oleg V.; Chevance, Mélanie)
Polycyclic Aromatic Hydrocarbon and CO(2–1) Emission at 50–150 pc Scales in 70 Nearby Galaxies
ApJ 983, 64(2025)

3/2025
Brown, A. G. A.; Bastian, U. et al.
The Gaia astrometric catalogue and secular aberration drift in proper motions
A&A 695, A272(2025)

4/2025
Roy, A.; Krumholz, M. R. et al. (inc. Sander, A. A. C.)
Strong nebular He II emission induced by He+ ionizing photons escaping through the clumpy winds of massive stars
A&A 696, A29(2025)