The impact of stellar feedback on different scales and galactic environments
Stefanie WALCH-GASSNER (University of Köln, Germany)
Mardi 06/02/2024, 10:00
Bat 713, salle de séminaires Galilée , CEA Saclay, Orme des Merisiers

Stellar feedback refers to the processes by which massive stars release energy, radiation and material into their surroundings, influencing the structure and evolution of the galaxies in which they reside. Understanding the impact of stellar feedback on different galactic environments is crucial for developing a comprehensive picture of galaxy formation and evolution. In this context, different galactic environments refer to regions within a galaxy that differ in their physical conditions, such as the average gas density, temperature, or metallicity.

We study the respective impact of stellar winds, ionizing radiation, and supernovae in modern simulations of the multi-phase interstellar medium in parts of galaxies within the SILCC project, which I will present in this talk. From these galactic scale simulations we find that ionizing radiation is the most important factor in regulating the star formation rate, while supernova over-pressure the gas substantially, thus driving a galactic outflow.

Local contact: Suzanne MADDEN

Organizer: Frédéric GALLIANO

Contact : Frederic GALLIANO


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