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PALM-3000: Exoplanet Adaptive Optics for the 5-meter Hale Telescope | | R. Dekany
; J. Roberts
; R. Burruss
; A. Bouchez
; T. Truong
; C. Baranec
; S. Guiwits
; D. Hale
; J. Angione
; T. Trinh
; J. Zolkower
; J. C. Shelton
; D. Palmer
; J. Henning
; E. Croner
; M. Troy
; D. McKenna
; J. Tesch
; S. Hildebrandt
; J. Milburn
; | | Date: |
5 Sep 2013 | | Abstract: | We describe and report first results from PALM-3000, the second-generation
astronomical adaptive optics facility for the 5.1-m Hale telescope at Palomar
Observatory. PALM-3000 has been engineered for high-contrast imaging and
emission spectroscopy of brown dwarfs and large planetary mass bodies at
near-infrared wavelengths around bright stars, but also supports general
natural guide star use to V ~ 17. Using its unique 66 x 66 actuator deformable
mirror, PALM-3000 has thus far demonstrated residual wavefront errors of 141 nm
RMS under 1 arcsecond seeing conditions. PALM-3000 can provide phase
conjugation correction over a 6.4 x 6.4 arcsecond working region at an
observing wavelength of 2.2 microns, or full electric field (amplitude and
phase) correction over approximately one half of this field. With optimized
back-end instrumentation, PALM-3000 is designed to enable as high as 10e-7
contrast at ~1 arc second angular separation, after including post-observation
speckle suppression processing. While optimization of the adaptive optics
system is ongoing, we have already successfully commissioned five back-end
science instruments and begun a major exoplanet characterization survey,
Project 1640, with our partners at American Museum of Natural History and Jet
Propulsion Laboratory. | | Source: | arXiv, 1309.1216 | | Services: | Forum | Review | PDF | Favorites | |
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