High-resolution version

The unique linear resolution that can be achieved in the Milky Way made it a prime object of studies of the interplay between star formation and the interstellar medium. The main challenge is here to understand the effect of the galactic environment which is difficult to characterize due to our position inside the Milky Way. The huge improvements in sensitivity and angular resolution of the current generation of observatories are delivering a large number of high quality images and spectra of the interstellar medium in nearby galaxies. This not only delivers an outside view on the way the interstellar medium interacts with the stellar populations, but it also gives us access to a much wider diversity of physical conditions (metallicity, star formation efficiency, etc). We believe that we should motivate the next generation of astronomers, as well as more senior colleagues, to consider ISMology as a field where, depending on the scientific question they want to answer, they can rely either on studies of galaxies or of Galactic regions. This brings several outstanding questions, such as:

• How can we apply our knowledge of the Galactic ISM to other galaxies? What are the limitations?
• How peculiar is the ISM of the Milky Way? How representative are nearby systems to understand the cosmic evolution of galaxies?
• Which new concepts (observations, models) are required to bridge the remaining gap in angular resolution between the Milky Way and external galaxies?

This school will center around 14 high-level lectures covering the different aspects of this field. In parallel, each participant will work, in a small group, on a project whose results will be presented at the end of the school. Finally, there will be three round table discussions addressing the interface between several topics.

• Hsiao-Wen CHEN (University of Chicago, USA)
• Mélanie CHEVANCE (University of Heidelberg, Germany)
• Daniel DALE (University of Wyoming, USA)
• Benjamin GODARD (Observatoire de Paris, France)
• Brent GROVES (University of Western Australia)
• Chiaki KOBAYASHI (University of Hertfordshire, UK)
• Vianney LEBOUTEILLER (CEA Paris-Saclay, France)
• Pierre LESAFFRE (École Normale Supérieure de Paris, France)
• Alexandre MARCOWITH (Laboratoire Univers et Particules de Montpellier, France)
• Julia ROMAN-DUVAL (Space Telescope Science Institute, Baltimore, USA)
• Karin SANDSTROM (University of California, San Diego, USA)
• Rowan SMITH (University of Manchester, UK; remote participation)
• Stefanie WALCH-GASSNER (Physical Institute, University of Cologne, Germany)
• Nathalie YSARD (Institut d'Astrophysique Spatiale, Orsay, France)

• Hsiao-Wen CHEN (University of Chicago, USA)
• Mélanie CHEVANCE (University of Heidelberg, Germany)
• Daniel DALE (University of Wyoming, USA)
• Frédéric GALLIANO (CEA Paris-Saclay, France)
• Brent GROVES (University of Western Australia)
• Vianney LEBOUTEILLER (CEA Paris-Saclay, France)
• Pierre LESAFFRE (École Normale Supérieure de Paris, France)
• Evangelia NTORMOUSI (SNS, Pisa, Italy)
• Lara PANTONI (CEA Paris-Saclay, France)
• Jérôme PETY (IRAM, Grenoble, France)
• Yannick ROEHLLY (LAM, Marseille, France)
• Karin SANDSTROM (University of California, San Diego, USA)
• Jessica SUTTER (SOFIA Science Center, NASA Ames, USA)
• Patrice THEULÉ (LAM, Marseille, France)
• Antoine ZAKARDJIAN (IRAP, Toulouse, France)

• Karine DEMYK (IRAP, Toulouse, France)
• Yohan DUBOIS (IAP, Paris, France)
• Frédéric GALLIANO (AIM, CEA Paris-Saclay, France; chair)
• Annie HUGHES (IRAP, Toulouse, France)
• Evangelia NTORMOUSI (SNS, Pisa, Italy)
• Jérôme PETY (IRAM, Grenoble, France)
• Eva SCHINNERER (MPIA, Heidelberg, Germany)
• Patrice THEULÉ (LAM, Marseille, France)

• Virginie KATRA (AIM, CEA Paris-Saclay, France)

• Laboratoire AIM (Astrophysique, Instrumentation, Modélisation), CEA Paris-Saclay, France
• Irfu (Institut de Recherche sur les lois Fondamentales de l'Univers), CEA Paris-Saclay, France
• IRAP (Institut de Recherche en Astrophysique et Planétologie), Toulouse, France
• Université Paul Sabatier, Toulouse, France
• Programme national de Physique Chimie du Milieu Interstellaire (PCMI)
• Programme National de Cosmologie et Galaxies (PNCG)
• Programme National Hautes Énergies (PNHE)
• The DAOISM project

The present school is the second in a series entitled GISM (Galaxies' ISM). The first school took place virtually in the summer of 2021. The video recording of the lectures and the presenter's slides are still available at: https://ismgalaxies2021.sciencesconf.org.