In Search of Cool Flow Accretion: How Do Galaxies Get Their Spin?

Joss Bland-Hawthorn (Sydney Institute for Astronomy) - January 22, 2018 at 12:10 pm

The processes taking place in the outermost reaches of spiral disks (the ``protodisk'') are intimately connected to the build-up of mass and angular momentum in galaxies. The thinness of spiral disks suggests that the activity is mostly quiescent, and presumably this region is fed by cool flows coming into the halo from the intergalactic medium. While there is abundant evidence for the presence of a circumgalactic medium around disk galaxies as traced by quasar absorption lines, it has been very difficult to connect this material to the outer gas disk. We will explore some new developments in how gas flows into evolving galaxies on the largest scales.

The seminar will be held in 131A Campbell Hall.

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