Titlebook: Gas Accretion onto Galaxies; Andrew Fox,Romeel Davé Book 2017 Springer International Publishing AG 2017 Accretion in Galaxies.Accretion Mo

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Gas Accretion Traced in Absorption in Galaxy Spectroscopy,oward the host system. Spectroscopy probing, e.g., Na I resonance lines in the rest-frame optical or Mg II and Fe II in the near-ultraviolet is in principle sensitive to the infall of cool material at temperatures . ∼ 100–10,000 K anywhere along the line of sight to a galaxy’s stellar component. How

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Gas Accretion via Lyman Limit Systems,and out of galaxies through their circumgalactic medium (CGM). The overall low metallicity of the cold gaseous streams feeding galaxies seen in these simulations is the key to differentiating them from metal rich gas that is either outflowing or being recycled. In recent years, several groups have e

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Gas Accretion in Star-Forming Galaxies,stars over the lifetime of the Universe. Given its dramatic influence on a galaxy’s gas reservoir, gas accretion has to be largely responsible for how galaxies form and evolve. Therefore, given the importance of gas accretion, it is necessary to observe and quantify how these gas flows affect galaxy

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The Circumgalactic Medium in Massive Halos,the last decade, significant progress has been made in characterizing the cool circumgalactic gas in massive halos of .. ≈ 10. M. at intermediate redshifts using absorption spectroscopy. Systematic studies of halo gas around massive galaxies beyond the nearby universe are made possible by large spec

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Gas Accretion and Giant Ly, Nebulae,ding in some cases up to 500 kpc in size. In this chapter, I review the properties of the such nebulae discovered at . > 2 and their connection with gas flows in and around galaxies and their halos. In particular, I show how current observations are used to constrain the physical properties and orig

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Gas Accretion and Galactic Chemical Evolution: Theory and Observations,hasis is placed on the insights that result from using models to interpret observations. Even as the classical “G-dwarf problem” endures in the latest round of observational confirmation, a rich and tantalizing new phenomenology of relationships between .., ., SFR, and gas fraction is emerging both

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The Effect of Galactic Feedback on Gas Accretion and Wind Recycling,However, outflows driven by supernovae and active galactic nuclei not only eject gas from galaxies, but also prevent gas from accreting in the first place. Furthermore, gas previously ejected from a galaxy can re-accrete onto (the same or a different) galaxy. Because this gas has a high metallicity,

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