Analysis of the LSST image quality and effects seen through the atmosphere.

Details Analysis of the LSST image quality and effects seen through the atmosphere. Analysis of the LSST image quality and effects seen through the atmosphere.

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510810c&link_type=abstract

American Astronomical Society Meeting 205, #108.10; Bulletin of the American Astronomical Society, Vol. 36, p.1529

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The 8.4m Large Synoptic Survey Telescope (LSST) is a new 3.5 degree field of view facility for the purpose of studying the nature of dark energy and matter along with the time varying nature of the optical universe. These science missions require precise knowledge and control of both the size and shape of the point spread function (PSF) delivered by the LSST. Here, we present analyses of three areas of image quality that are critical to the LSST: 1) the stability and angular correlation of the stellar PSF second moments as seen through a turbulent atmosphere typical of a high quality observing site and the baseline LSST optical design, 2) the ability to recover a synthetically induced gravitational shear signal on Hubble Deep Field data modified to mimic seeing and telescope aberrations, and 3) the effects of chromatic atmospheric refraction through the LSST filters on image shape and field registration. For the stability, angular correlation and chromatic refraction studies we compare our simulations with data obtained on modern new technology telescopes.

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