‘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
BzK–15504 at z 2.38 Hα channel maps SINFONI + 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. 2008 0.5 (4 kpc) FWHM –260(±33) km/s –200 km/s –130 km/s –65 km/s From F. Walter’s talk 0 km/s +65 km/s +130 km/s +200 km/s +400(±130) km/s The ‘3D’ State of the Art at High Redshift
3D Observations of AGN and High-z Galaxies: Some Questions for Discussion 1) 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 Discussion 2) 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 Discussion 4) 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?