Ruprecht-Karls-Universität Heidelberg

Heidelberg Joint Astronomical Colloquium (HJAC)

The Heidelberg Joint Astronomical Colloquium (HJAC) brings together astronomers from across many different fields in Heidelberg. It is organized jointly between four local institutes:

  • Center for Astronomy of Heidelberg University (ZAH)
  • Max-Planck Institute für Astronomie (MPIA)
  • Max-Planck Institut für Kernphysik (MPIK)
  • Heidelberg Institute for Theoretical Studies (HITS)  

For further information please contact the co-organizers: Kathryn Kreckel or Eduardo Banados


The HJAC is held on Tuesdays at 16:30 in the large lecture hall (gHS) at Philosophenweg 12.  

The organizing committee consists of Kathryn Kreckel (ZAH/ARI), Eduardo Banados (MPIA), Ralf Klessen (ZAH/ITA), Hans-Günter Ludwig (ZAH/LSW), Friedrich Röpke (HITS), and Richard Tuffs (MPIK).

 


HJAC Meet & Mingle

As the Heidelberg astronomy community is divided across many institutes, we find relatively few chances to have casual science discussions with colleagues across town. However, the HJAC provides one potential opportunity to come together socially, as well as scientifically. Therefore, and by popular demand, starting winter term 2024 an opportunity for all to meet & mingle in advance of the HJAC was established.

This is hosted starting at 16:00 in Philosophenweg 12 room 106A (right next to the lecture hall), with light refreshments (cookies & drinks). Everybody who wants to socialize within the Heidelbergs Astro Community (students, postdocs, staff, faculty, and anything in between) is warmly invited to attend.


Current Talks

Upcoming talks for the Winter Semester 2025/26 will be announced soon (also available via HePhySto)

 


Past Talks

The HJAC youtube channel features the most recent talks, plus all previous talks. A more detailed listing of past talks is also available here: Academic years 2009-2025

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News

Next HJAC Talk

► HJAC talks are held Tuesdays at 16:30 in the large lecture hall (gHS) at Philosophenweg 12.. Please see the HePhySTO listing for information on upcoming talks

HJAC meet & mingle

► Come early to network with collegues and eat snacks, from 16:00 in Philosophenweg 12 room 106A (directly next to the gHS) join us to meet & mingle in advance of the HJAC