Abstract
Galaxies are born and grow within a cosmic ecosystem, in which they receive material from surrounding intergalactic gas via gravitationally-driven inflows and expel material via powerful galactic outflows. These processes, collectively referred to as the baryon cycle, are increasingly believed to govern galaxy growth over cosmic time. I discuss new insights on the baryon cycle using analytic models and hydrodynamical simulations of galaxy evolution, particularly emphasizing how galaxy outskirts are the prime locale within which to observe these processes in action by examining observational tracers such as rest-ultraviolet absorption lines and the neutral and molecular gas content of galaxies.
Original language | English (US) |
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Pages (from-to) | 53-60 |
Number of pages | 8 |
Journal | Proceedings of the International Astronomical Union |
Volume | 11 |
Issue number | S321 |
DOIs | |
State | Published - Mar 1 2016 |
Externally published | Yes |
Keywords
- galaxies: ISM
- galaxies: absorption lines
- galaxies: evolution
- galaxies: formation
- methods: n-body simulations
ASJC Scopus subject areas
- Medicine (miscellaneous)
- Astronomy and Astrophysics
- Nutrition and Dietetics
- Public Health, Environmental and Occupational Health
- Space and Planetary Science