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Chapter 1:
Introduction
Abstract
The very topic discussed here suggests that we are interested in telescopes that combine a large field of view with a high survey speed of sufficiently faint objects. All of these interrelated concepts are largely determined by the goal of the observation. There are two primary modes of surveying large areas of the sky: (i) we need to cover sequentially the area in reasonable time; and (ii) the sky area we are interested in should be under continuous observation. The problem of the first kind arises, for example, when we study the long-term variability of all objects on the celestial sphere brighter than a certain limit. The second mode is characteristic for cases where we look for fast transient objects, say, the counterpart of an x-ray burst.
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CHAPTER 1
24 PAGES


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