23rd of August 2015 |
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National Science Week @ Google |
by Flornes Yuen (CASS) |
If you've ever wondered what the ASKAP
spectrum looks like, Vanessa Moss aka
@cosmicpudding
has the answer. When printed out, the 300 MHZ instantaneous spectrum (in
Band 1, towards PKS 1740-517) is 10 m long and traces across some 3 billion
years of cosmic history. Vanessa printed this out on to 36 pages of A4 paper
to demonstrate the Big Data aspect of ASKAP, as part of a panel about
developing Australia's national STEM talent for National Science Week and
the Sydney Science Festival. Here she is showing how distant radio galaxies
act like a bright flashlight to illuminate the shadows of hydrogen in front
of them. You can read more about Vanessa and her research in this SMH profile. |