‘3D’ Data Sets are ABSOLUTELY Crucial to Answer the Important Questions of Galaxy Formation

and Evolution• Galaxy dynamical masses, gas masses

• Spatially resolved distributions of SF, gas, stellar populations, metallicities

• Rotation curves & connection to halo; angular momentum distribution

• Co-evolution of massive black holes and host galaxies

• Roles of mergers vs secular evolution

• Bulge vs disk formation

• Roles of stellar and AGN feedback

The ‘3D’ State of the Art at High Redshift

0 km/s +200 km/s+65 km/s +400(±130) km/s +130 km/s

FWHM0.5(4 kpc) –200 km/s–260(±33) km/s –130 km/s –65 km/s

BzK–15504 at z 2.38

Hα channel mapsSINFONI + AO(Genzel et al.

2006)

From N. Förster Schreiber’s talk

CO channel maps (v=40 km s-1) at z=4.1(!); Riechers et al. 2008From F.

Walter’s talk

3D Observations of AGN and High-z Galaxies: Some Questions for

Discussion1) Rephrasing Eric’s question: We’re now doing “low-z” science at high redshift! What are the most important

lessons to be learned from nearby galaxies?- extracting/modeling dynamics- best line tracers for star formation, dynamics- best local Universe templates- synergies between optical/IR and (sub)mm 3D observations (unfortunately no HI at high-z!)- …

3D Observations of AGN and High-z Galaxies: Some Questions for

Discussion2) Are high-z disks really disks? Are high-z mergers really mergers? Is it all outflows?

How do we distinguish amongst them? What about minor mergers?

3) How do we establish the M- relation at high-z? How well calibrated is it at low-z? Do black holes form first? What does this mean for “co-evolution of black holes and host galaxies”?

3D Observations of AGN and High-z Galaxies: Some Questions for

Discussion4) What is the relative importance of cold accretion vs mergers in galaxy formation? How do we get an

observational handle on “cold accretion” at high-z ?

5) What improvements/considerations should be made to simulations (of mergers, cold accretion, etc.) based on the data?

6) Lots of other questions?