Speaker
Dr
Andreas Faltenbaher
(University of the Witwatersrand)
Description
Our knowledge of the Universe is almost entirely based on electromagnetic
waves arriving from distant sources, such as stars, galaxies, quasars, etc.
Most of the electromagnetic radiation is shielded by the atmosphere of the
earth. Only visible light ($\lambda \approx 10^{-7} \rm m$) and radio waves
($\lambda \approx 1 \rm m$) arrive at sea level. This is why only optical and
radio telescopes are used for ground-based observations, other wavebands
require satellite missions. In my presentation I will review basic differences
between optical and radio imaging and discuss the resulting data processing
Primary author
Dr
Andreas Faltenbaher
(University of the Witwatersrand)
