Toney Minter (for Amy Lovell)

1
Multi-band Observations

• Toney Minter (for Amy Lovell)
• Future GBT Instrumentation Workshop

2
Comets

• Simultaneous observations of parent and daughter
  species
• H20 ? OH H
• OH has complicated excitation hard to model
• H20 sublimes from nucleus
• H20 photo-dissociates in 82000AU2 seconds
• OH lasts 150000 seconds
• NH3
• Sublimes from nucleus
• Measures temperature of coma
• H20 photo-dissociation adds velocity kick to OH
• H20 NH3 line widths ? outflow velocities

3
Asteroids

• ? ? depth probed
• Multi-band observations
• probe different depths
• Measure T vs. depth
• Constraints on composition, specific heat,
  density, etc.

4
Transients

• Rejection of RFI events
• Spectral Indices, etc. vs. time

5
VLBI

• Geodetic observations
• Removal of atmospheric phases
• Removal of ionospheric phases
• Transients, micro-quasars, etc.

6
Optics

• Frequency Selective Surface
• Dual Frequency Receiver