1988
DOI: 10.1086/132340
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Liquid mirror telescopes as cosmological tools

Abstract: Liquid mirrors promise to give us very large telescopes at low cost making them ideal instruments for cosmological studies. We review briefly the concept, past work, recent observations, and present unpublished optical shop tests. Tests on a 1.5-m liquid mirror indicate an excellent image and surface quality. Imagery and Ronchi tests indicate that we can obtain a point-spread function having a FWHM of the order of 0.3 arc second. In particular, bars having a width of 0.5 arc second and a separation of 1 arc se… Show more

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