Dust traps and the formation of cavities in transition discs: a millimetre to sub-millimetre comparison survey

  title={Dust traps and the formation of cavities in transition discs: a millimetre to sub-millimetre comparison survey},
  author={Brodie J Norfolk and Sarah T. Maddison and Christophe Pinte and Nienke van der Marel and Richard A Booth and Logan Francis and Jean-François Gonzalez and François M{\'e}nard and Christopher M. Wright and G Van der Plas and Himanshi Garg},
The origin of the inner dust cavities observed in transition discs remains unknown. The segregation of dust and size of the cavity is expected to vary depending onwhich clearingmechanism dominates grain evolution. We present the results from the Discs Down Under program, an 8.8 mm continuum Australia Telescope Compact Array (ATCA) survey targeting 15 transition discs with large (& 20 au) cavities, and compare the resulting dust emission to Atacama Large millimetre/sub-millimetre Array (ALMA… Expand
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