EAN: 9783319285085

ASTRONOMERS UNIVERSE SURVEYING THE SKIES - GA...

Since the time of Galileo  astronomy has been driven by technological innovation. With each
major advance has come the opportunity and enthusiasm to survey the sky in a way that was not
possible before. It is these surveys of discovery that are the subject of this book. In the
first few chapters the author discusses what astronomers learned from visible-light surveys 
first with the naked eye  then using telescopes in the seventeenth century  and photography in
the nineteenth century. He then moves to the second half of the twentieth century when the
skies started to be swept by radio  infrared  ultraviolet  x-ray and gamma ray telescopes  many
of which had to be flown in satellites above the Earth's atmosphere. These surveys led to the
discovery of pulsars  quasars  molecular clouds  protostars  bursters  and black holes. He then
returns to Earth to describe several currently active large-scale projects that methodically
collect images  photometry and spectra that are then stored in vast publicly-accessible
databases. Dr. Wynn-Williams also describes several recent microsurveys - detailed studies of
small patches of sky that have led to major advances in our understanding of cosmology and
exoplanets.

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