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
Jul 03
11:15
The future of massive star atmosphere models: Multi-D RHD
Nicolas Moens (KU Leuven)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG
Jul 04
11:00
A brief history of the Solar System's dynamical evolution
Philippine Griveaud (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Jul 08
16:30
Compact star mergers, kilonovae and r-process element production
Stephen Smartt (University of Oxford )
Heidelberg Joint Astronomical Colloquium
Philosophenweg 12, Main Lecture hall (gHS),

Recent publications
6/2025
Lewis, Briley L.; Waggoner, Abygail R. et al. (inc. Lefever, R. R.)
Improving undergraduate astronomy students' skills with research literature via accessible summaries: An exploratory case study with Astrobites-based reading assignments
PRPER 21, a0124(2025)

6/2025
Sattler, Natascha; Pinna, Francesca et al.
Relatively young thick disks in star-forming late-type galaxies
A&A 698, A235(2025)

6/2025
Méndez-Delgado, J. E.; Skillman, E. D. et al. (inc. Tan, S.; Kreckel, K.)
Generalized Te([O III])–Te(He I) Discrepancies in Ionized Nebulae: Possible Evidence of Case B Deviations and Temperature Inhomogeneities
ApJ 986, 74(2025)