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 04
11:00
Galactic climate: the structure and 3D motion of the local Milky Way
Joao Alves (Vienna)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Apr 11
11:00
TBD
Gael Chauvin (MPIA)
Königstuhl Kolloquium
Max-Planck-Institut für Astronomie, Level 3 Lecture Hall (301)
Apr 17
11:15
Vision for the new professorship for extragalactic astrophysics at ARI
Dominika Wylezalek (ARI)
ARI Institute Colloquium
ARI, Moenchhofstrasse 12-14, Seminarraum 1.OG

Recent publications
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
Collins, Christine E.; Shingles, Luke J. et al. (inc. Röpke, Friedrich K.; Kromer, Markus; Gronow, Sabrina)
Non-LTE radiative transfer simulations: improved agreement of the double detonation with normal Type Ia supernovae
MNRAS 538, 1289(2025)

3/2025
Kaczmarek, Zofia; McGill, Peter et al.
On Finding Black Holes in Photometric Microlensing Surveys
ApJ 981, 183(2025)