2011/10/05 by Hugo Martel, Martel, Hugo
Physics and Astronomy · #Astrophysics and Star Formation Studies #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Superconducting and THz Device Technology #astro-ph.CO
paper · pdf · doi:10.48550/arxiv.1110.1061
8 pages, 4 figures. Invited talk presented at the 11th Asian-Pacific Regional IAU Meeting, Chiang Mai, Thailand, July 28, 2011
arxiv created 2011/10/05 · openalex publication_date 2011/10/05 · arxiv updated 2011/10/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Galactic outflows play a major role in the evolution of galaxies and the intergalactic medium (IGM). The energy deposited into the interstellar medium by supernovae and active galactic nuclei can accelerate the gas past the escape velocity, and eject it into the IGM. This will affect the subsequent evolution of the galaxy, by reducing or eliminating star formation, and quenching the accretion of matter onto the central AGN. Galactic outflows is the main process by which energy and processed interstellar matter is transported into the IGM. This affects the subsequent formation of other galaxies. The energy carried by outflows can strip protogalactic halos of their gas, preventing galaxies from forming. Conversely, the metals carried by outflows can modify the composition and cooling rates of the gas in protogalactic halos, favoring the formation of galaxies. In this paper, I review the various techniques used to simulate galactic outflows and their impact on galaxy and IGM evolution.