Probing the Baryon Cycle in Galaxy Outskirts

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)53-60
Number of pages8
JournalProceedings of the International Astronomical Union
Issue numberS321
StatePublished - Mar 1 2016


  • 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


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