Linda Tacconi
- High-redshift
- Outflows with mass-loading parameters 1-10
- velocity dispersions 25-80 km/s
+ seen in both CO and H-alpha
Avishai Dekel: Violent Disk Instability
- Galaxies form at nodes in web at high z
- disk surrounded by messy "interaction region"
- disk outflows observed
- Toomre unstable clumps ~10^9 msun
+ dynamically dominant (unlike MW clumps)
+ violent instability, not secular
- long time spent in disks
- Stellar-dominated galaxies at z~1 stop "VDI"
+ bulge stabilizes inner part of galaxy
- "clumps" are rapidly spinnign
- both VDI and "ex-situ" dark matter clumps
- universal SF law: divide by t_ff
+ t_ff is either Toomre tff or gmc tff
- "redshift 2 is the only important phase, forget about z=0"
- Steve: How does "universal law" fit with Galactic CMZ?
+ Ignorance. Ask Mark.
- Rahul: Toomre Q threshold only works for infinitely thin disk. Shouldn't
threshold be lower because of thick disk?
- Goldreich & Linden-Bell: 30% effect. Elmegreen addresses this.