- NANTEN2 CO survey
- 12CO 1-0, 3' beam, 0.43 K
- high latitude clouds with vlsr -200 to +150 km/s
+ 24um filaments traced by CO
- Double Helix nebula (Morris, Uchida, Do 2006)
+ Torional alfven wave?
+ polarized lobe from radio arc?
+ CO detected
- Other molecular columns tie back to Sgr A*
- "Magnetic Tower" model
+ accretion around BH
+ CND creates B-field, spins it up vertically
+ 25 km/s outflow speed
Questions
- Q McClure-Griffiths: can you distinguish between magnetic and stellar wind models?
- A: No,not really
- Q Bally: Do you worry that the LSR velocities are close to local gas and
spiral arms? Could foreground confuse? Linewidths consistent with CMZ?
- A: Star-counting extinction distance estimate gives 8±2 kpc.
- Q: What evidence for jet?
- A: no direct evidence.
- Q Farhad: Could it be infalling rather than outflowing? Maybe hard to tell.
- A: ...