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
Nov 11
16:30
Origin of supermassive black holes from dense star clusters: Implications for the Local Universe and for JWST
Dominik Schleicher (Sapienza University of Rome)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),
Nov 13
11:15
The power of asteroseismology: the internal structure of stars
Saskia Hekker (HITS/LSW)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Nov 14
11:00
TBA
Farzana Meru
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)

Recent publications
10/2025
Sutter, Jessica; Sandstrom, Karin et al. (inc. Klessen, Ralf S.; Egorov, Oleg)
Characterization of Two Cool Galaxy Outflow Candidates Using Mid-infrared Emission from Polycyclic Aromatic Hydrocarbons
ApJ 992, L7(2025)

9/2025
Martínez-Delgado, David; Stein, Michael et al. (inc. Grebel, Eva K.)
Stellar tidal streams around nearby spiral galaxies with deep imaging from amateur telescopes
A&A 701, A182(2025)

10/2025
Rinaldi, Stefano; Liang, Yajie et al. (inc. Mapelli, Michela)
Exploration of features in the black hole mass spectrum inspired by non-parametric analyses of gravitational wave observations
A&A 702, A52(2025)