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Jet Propulsion Laboratories Adaptive Optics Group
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Palomar Adaptive Optics



The Palomar Observatory, located in north San Diego County California, is owned and operated by the California Institute of Technology. The Observatory supports the research of the Caltech faculty, post-doctoral fellows and students, and the researchers at Caltech's collaborating institutions. Palomar Observatory is home to the historic Hale 200-inch telescope.

The Palomar Adaptive Optics System (PALAO), built by Jet Propulsion Laboratory , corrects for the atmospheric blur of astronomical targets caused by turbulence in the Earth's atmosphere. Science images are obtained using the Palomar High Angular Resolution Observer (PHARO), design and built by Cornell University.

For technical information regarding the Palomar Adaptive Optics / Laser Guide Star work, please visit our twiki site here.

Latest News:

The two images below are results from work performed using the Palomar Adaptive Optics Instrument.

The picture on the left was developed using the adaptive optics system in conjunction with the laser guide star on July 29, 2007. The results were: LGS bright star PSF, 2.2 nm, 30s FWHM=0.089", Strehl=48%

The image on the right was taken with the lucky camera, which is part of the LAMP project. new LAMP (LuckyCam) instrument at Palomar combines two telescope image-improvement technologies to obtain the highest-resolution direct images of space ever recorded in visible light.



Glimpse-C01 images compared

The images below are a comparison of a galactic globular cluster discovered with the Spitzer Space Telescope. The image on the left was taken with the Palomar Hale Telescope using the adaptive optics instrument in conjuction with the laser guide star during engineering time on May 24, 2007.

PHARO LGS Ks image
WIRO H image
500s integ., 40" FOV, 150 mas FWHM
Kobulnicky et al. 2005, AJ 129, 239-250


This is the first Palomar Laser Guide Star (LGS) image of a star (mV=10) corrected using the LGS as the reference source for the AO correction. In the equivalent of 1.3 arcsecond visible seeing we achieved a corrected K-band image with a FWHM of 0.16 arcseconds (~1.7x the diffraction limit). This is a major milestone and puts Palomar AO in a class occupied by only a handful of observatories with LGS. The laser power was 6 watts and the high order AO wavefront sensor was running at a frame rate of 150Hz.



Other News:
Read the press release regarding the Palomar Adaptic Optics encouter with Deep Impact and Tempel 1

View a movie of the Palomar Adaptive Optics Laser Guide Star in action.


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