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
Jul 22
16:30
Tracing out the darkness with cold gas: dynamically probing galaxy evolution and black holes
Timothy Davis (Cardiff University )
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Jul 24
11:15
DRAGON star cluster simulations and how to form an intermediate mass black hole
Rainer Spurzem (ARI, NAOC, Kavli-Beijing)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jul 25
11:00
The Gaia Binary Star Revolution
Kareem El-Badry (Caltech)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
7/2025
Bevacqua, Davide; Saracco, Paolo et al. (inc. Pasquali, Anna)
TP-AGB stars and stellar population properties of a post-starburst galaxy at z ∼ 2 through optical and near-infrared spectroscopy with JWST
A&A 699, A203(2025)

7/2025
Bissekenov, Abylay; Pang, Xiaoying et al. (inc. Spurzem, Rainer; Kamlah, Albrecht)
Evolution of star clusters with initial bulk rotation via N-body simulations
A&A 699, A196(2025)

7/2025
Meena, Beena; Sabbi, Elena et al. (inc. Grebel, Eva K.; Facchini, Pietro; Klessen, Ralf S.; Pasquali, Anna)
GULP. II. Hierarchical Distribution and Evolution of Young Stellar Structures in NGC 4449
ApJ 987, 33(2025)