|The Australia Telescope National Facility Colloquium|
|15:30-16:30 Wed 02 Jun 2010|
ATNF Marsfield Lecture Theatre
Prof. Roy Kerr
(University of Canterbury, New Zealand)
Quasars, Black Holes and the Kerr Metric - Prof. Roy Kerr Colloquium
Once powerful radio telescopes became available in the 1950s it was realised that the sky was full of objects emitting very intense radio waves but with no known associated optical counterparts. Because of the way that their intensities were changing rapidly they had to be very small and so they were called quasi-stellar radio sources, or Quasars. In 1962 it was shown that they are inside distant galaxies and therefore that the energy being emitted is truly enormous.
This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.