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SUMMARY:Nano-particles in Proto-Planetary Discs - Jane Greaves (Cardiff)
DTSTART:20190117T160000Z
DTEND:20190117T170000Z
UID:TALK118066@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:A very small number of discs around young stars host hydrogena
 ted\nnano-diamonds. These nano-particles were discovered in meteorites on 
 Earth\nin the 1930s\, and their infrared signatures were first found in s
 pace\nenvironments in 1980. The origins of the particles are obscure\, eve
 n in the\nsolar system\, and most astronomers have been happily oblivious 
 of the whole\ntopic. I will discuss an unexpected outcome of our observati
 ons made to\ntrack grain growth in proto-planetary discs\, where the only 
 three systems\nknown to host nano-diamonds also showed anomalous microwave
  emission. This\nserendipitous result has led to a well-evidenced carrier-
 particle for AME\n(after twenty years of debate)\, using the well characte
 rised environments of\ncircumstellar discs.\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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