Abstract:ABSTRACT. Future orbiting observatories will survey large areas of sky in order to constrain the physics of dark matter and dark energy using weak gravitational lensing and other methods. Lossy compression of the resultant data will improve the cost and feasibility of transmitting the images through the space communication network. We evaluate the consequences of the lossy compression algorithm of Bernstein et al. for the high-precision measurement of weak-lensing galaxy ellipticities. This square-root algorit… Show more
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