The Promise and Challenges of Adaptive Secondary Mirrors.

Phil Hinz (U. of Arizona)

Adaptive optic systems that are integrated into the telescope, rather
than as an add on system, can provide optimal IR and wide-field AO
observing modes. The MMT AO system, with its adaptive secondary, is
currently unique in the community in providing this capability, and
will soon be joined by similar systems for LBT and the Magellan
telescopes.  The systems require unique approaches to calibration and
operation. I will describe the MMT system operation, and present some
of the results with it. In addition, I will provide a status update on
the LBT AO system, which is currently undergoing commissioning at the
telescope.