B. Stamper

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We will present a system to perform closed-loop optical tests of the 64 cm diameter, 336 actuator adaptive secondary made at the Steward Observatory Mirror Laboratory. Testing will include Shack-Hartmann wavefront sensing and modal correction of static and dynamic aberrated wavefronts. The test optical system (called the `Shimmulator') is designed so that(More)
Secondary sexual traits often play a role in differential reproductive success. Some traits are used as ornaments to attract mates, while others have a key role in direct physical contests for mates. We describe an undocumented secondary sexual trait in a lekking hummingbird species, the Long-billed Hermit (Phaethornis longirostris). The trait is a(More)
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