One of the fundamental questions in modern astrophysics is how gas is converted into stars during galaxy formation, and how the underlying mechanisms may have varied across cosmic time. It is widely accepted that the unknown physics of star formation and feedback represent the main uncertainty in our understanding of galaxy formation. Despite significant progress, this problem remains unsolved, because it is extremely hard to observe the small scales on which these processes take place.

The key questions are: which physics determine how gas clouds form stars? How long does this process take? How are the clouds themselves formed and destroyed? How do these physics change with environment or cosmic time? And how do these cloud-scale physics of star formation determine the properties of the entire galaxy population?

It is now possible to answer these questions thanks to three crucial developments.
(1) The latest generation of billion-euro observatories now reveal in unprecedented detail how stars formed within galaxies out to cosmological distances, when galaxies like the Milky Way were in their infancy.
(2) New techniques needed to analyse these observations and solve the problem are starting to emerge.
(3) Current numerical simulations of galaxy formation are starting to reach the resolution necessary to resolve the cold interstellar medium.

These developments make this the perfect time to organise a workshop aimed at answering the above questions with a unique mix of researchers active in observational astrophysics, theory, analysis techniques, and numerical simulations. The goal of the workshop will be to:
(1) discuss the recent advances in observations, theory, and numerical simulations of cloud-scale star formation, galaxy evolution, and early galaxy formation, placing the high-resolution studies from the Milky Way and the nearby galaxy population in the context of galaxy evolution throughout cosmic history;
(2) reach a consensus of how they can be united to obtain a fundamental understanding of star formation and feedback across cosmic time;
(3) determine in which areas immediate progress is needed during the next three years, with a focus on upcoming observational facilities and numerical simulations.


The workshop is aimed at driving significant progress in the field of star and galaxy formation by bringing together a small (40-50) group of researchers from a variety of backgrounds, ranging from cloud-scale star formation to the properties of the galaxy population. All participants will be able to give a talk on their work and their thoughts on the theme of the workshop, with extensive time for discussions (regular talks are anticipated to be 20+15 minutes, with short talks of 12+8 minutes).


  • September 20, 2017: First Announcement
  • February 12, 2018: Second announcement, registration opens
  • March 9, 2018: Registration deadline
  • March 30, 2018: Programme announced
  • June 24, 2018: Workshop begins


If you have received an invitation for this workshop, please use the following link to register: The registration fee includes accommodation (either at the venue or at nearby hotels) and breakfast/lunch/dinner/coffee breaks from Sunday evening till Friday afternoon.


The workshop will start with a reception at 17:30 on Sunday June 24, 2018. The scientific part will run from 9:00 on Monday June 25, 2018 until the late afternoon (17:00) on Friday June 29, 2018. The detailed programme will appear here in late March.


The workshop will be held at the stimulating environment of International Academic Forum Heidelberg (IWH), at the end of the city's main street in its picturesque centre (Google Maps). All accommodation reserved for this workshop is within walking distance.

The closest international airport to Heidelberg is Frankfurt Airport (FRA). From Frankfurt, you can take the train (25 euros each way) or an airport shuttle that should be pre-booked either through the TLS shuttle service (40 euros each way) or the Lufthansa Express Shuttle (25 euros each way). The train will directly take you from Frankfurt Airport (station: Frankfurt(M) Flugh.) to any station near Heidelberg (either Heidelberg Hbf or Heidelberg Altstadt). This will take 1-1.5 hours. If you are taking the TLS, you will be dropped off directly at the destination address provided in the booking, whereas with the Lufthansa shuttle, you will be dropped off at the Crowne Plaza Hotel close to the Heidelberg city centre (Google Maps).

Within Heidelberg, the easiest way to get around is on foot or by tram. From the main train station, the venue is reached within a walk of ~40 minutes, whereas it is just a 7 minute walk from the train station Heidelberg-Altstadt. It is recommended to print a map of the area prior to arrival. If you are planning on travelling by tram, the time table can be checked through this link.

If you have any questions about travel or else, please do not hesitate to contact us:


  • Diederik Kruijssen (chair)
  • Melanie Chevance
  • Jindra Gensior
  • Daniel Haydon
  • Alex Hygate
  • Sarah Jeffreson
  • Marta Reina-Campos
  • Jacob Ward


  • Angela Adamo
  • Frank Bigiel
  • Ian Bonnell
  • Andreas Burkert
  • Daniela Calzetti
  • Melanie Chevance
  • Rob Crain
  • Julianne Dalcanton
  • Jim Dale
  • Bruce Elmegreen
  • Yusuke Fujimoto
  • Jindra Gensior
  • Reinhard Genzel
  • Simon Glover
  • Mike Grudic
  • Daniel Haydon
  • Jonathan Henshaw
  • Alex Hygate
  • Sarah Jeffreson
  • Ben Keller
  • Diederik Kruijssen
  • Mark Krumholz
  • Adam Leroy
  • Steve Longmore
  • Lucio Mayer
  • Anna McLeod
  • Sharon Meidt
  • Frederique Motte
  • Erica Nelson
  • Matthew Orr
  • Joel Pfeffer
  • Annalisa Pillepich
  • Marta Reina-Campos
  • Eva Schinnerer
  • Andreas Schruba
  • Debora Sijacki
  • Mattia Sormani
  • Volker Springel
  • Mark Swinbank
  • Linda Tacconi
  • Sebastian Trujillo-Gomez
  • Jacob Ward
  • Christine Wilson
  • Anita Zanella