67C0264A.html |
RA Range: 7.5-18.4
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.7 3THN 2.0 1.0 30
| Pre-imaging run? |
|
Chilean run? |
|
Special calibrations? |
|
|
| Time critical? |
|
ToO? |
|
Carry-over run? |
|
Long-wavelength imaging and polarimetry of young embedded massive stars. High spatial resolution is important for the scientific goals. Seeing constraint has been relaxed a bit from phase 1 specifications due to assigned class B. One target at 7h, may be done at the very end of P67. (NOTE: THE SW PART OF THIS PROGRAM IS ALREADY COMPLETE; WHAT FOLLOWS IS ONLY FOR COMPLETENESS): Bright stars in the IR may be present in the fields, but NB filters are used in SW. Object position in the acquisition images should be near the mid-infrared peak, but user does not have a more suitable finding chart. One of the targets (at 9h) was not in original proposal. Change has been requested based on recent observations by the same team and authorized by Visas. Users are aware that due to late submission + early RA + demanding seeing constraints + class B priority it will be difficult to schedule this one, but it's a high priority for the users and they want to keep it. SW OBs include both imaging (in two NB filters) and polarimetry (WARNING: OB names for these observations say "imaging", but they are actually imaging _and_ polarimetry!). Admitted, as otherwise the execution would be very inefficient. For the same reason, three filters admitted in the LW OBs. It is the same three filters for all objects, so pressure on calibrations does not seem excessive if more than one object is on one night. No special scheduling or calibration requirements.
README of this run: