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
Apr 24
11:15
CONs: New Perspectives on the HiddenLives of Galaxy Nuclei
Jay Gallagher (University of Wisconsin-Madison and Macalester College)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Apr 25
11:00
JWST Debris Disks: Transforming our Understanding of Exoplanetary Systems
Christine Chen (STScI)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Apr 29
16:30
The build-up of galactic nuclei: how do black holes get there?
Nadine Neumayer (MPIA)
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),

Recent publications
4/2025
Schösser, E. C.; Ramachandran, V. et al. (inc. Lefever, R. R.; Josiek, J.; González-Torà, G.; Bernini-Peron, M.; Sander, A. A. C.)
Extremely iron-poor O-type stars in the Magellanic Bridge
A&A 696, L3(2025)

3/2025
Whitmore, Bradley C.; Chandar, Rupali et al. (inc. Scheuermann, Fabian; Glover, Simon C. O.; Chevance, Mélanie)
Empirical SED Templates for Star Clusters Observed with HST and JWST: No Strong PAH or IR Dust Emission after 5 Myr
ApJ 982, 50(2025)

4/2025
Pathak, Debosmita; Leroy, Adam K. et al. (inc. Méndez-Delgado, J. Eduardo; Li, Jing; Kreckel, Kathryn; Klessen, Ralf S.; Chevance, Mélanie; Glover, Simon C. O.)
Linking Stellar Populations to H II Regions across Nearby Galaxies. II. Infrared Reprocessed and UV Direct Radiation Pressure in H II Regions
ApJ 982, 140(2025)