Image of Alice in Wonderland at the Mad Hatter's tea party You are cordially invited to afternoon tea and biscuits wine and chocolate

Astronomy Tea Talks at Caltech

Mondays, Robinson 106
Tea:  4.00pm
Talk: 4.15pm

Organised by:

2007 - 2008 season:
12 November 2007 Nick Law (CalTech)

"Getting lucky at Palomar: 2x HST resolution in the visible"


I will present the first results from the new P200 LAMP instrument. For the first time, the system
routinely gave diffraction limited resolution imaging in the visible on a 5m class telescope. LAMP is
a L3CCD Lucky Imaging backend camera to the PALMAO adaptive optics system. The camera records
photon-counted images at 20-100 frames per second, covering up to 30 arcsec diameter fields. In
postprocessing the highest quality frames, typically 10-20% of the dataset, are selected on the basis
of Strehl ratio. The selected frames are drizzle-aligned to produce a final image with much improved
resolution compared to standard AO long-exposure imaging. Over a six-night run this July the
instrument typically produced images with 35-40 milli-arcsecond resolution and 5-20% Strehl ratios at
700nm.
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Last modified on 20th Jul 2011 by Johan Richard.  

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