Multiphase analytic CGM models

          @misc{ pirsa_PIRSA:25070067,
            doi = {10.48660/25070067},
            url = {https://pirsa.org/25070067},
            author = {Faerman, Yakov},
            keywords = {Cosmology},
            language = {en},
            title = {Multiphase analytic CGM models},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {jul},
            note = {PIRSA:25070067 see, \url{https://pirsa.org}}
          }
          

Abstract

Recent observations of the CGM reveal that it is extended, multiphase, and ubiquitous, detected around star forming and quiescent galaxies. However, many questions remain open - how much gas is out there, what are its thermal properties, spatial distribution, and morphology? These are linked to the properties of gas accretion onto galaxies, star formation, and feedback processes, and are crucial to our holistic understanding of galactic ecosystems. I will present the multiphase CGM modeling framework I developed with collaborators and showcase examples of its application to a wide range of absorption measurements, constraining the CGM mass, thermodynamics, energetics, and cool gas cloud sizes. I will also demonstrate how predictions from these models can be used to test them with upcoming and future multi-wavelength observations.