Resolved debris disc emission around η Telescopii: a young solar system or ongoing planet formation?

  title={Resolved debris disc emission around η Telescopii: a young solar system or ongoing planet formation?},
  author={R. Smith and L. Churcher and M. Wyatt and M. Moerchen and C. Telesco},
  journal={Astronomy and Astrophysics},
  • R. Smith, L. Churcher, +2 authors C. Telesco
  • Published 2009
  • Physics
  • Astronomy and Astrophysics
  • Aims. 60% of the A star members of the 12 Myr oldβ Pictoris moving group (BPMG) show significant excess emissi on in the mid-infrared, several million years after the proto-plane tary disk is thought to disperse. Theoretical models suggest this peak may coincide with the formation of Pluto-sized planetesimals in the disk, stirring smaller bodies into collisional destru ction. Here we present resolved mid-infrared imaging of the disk ofη Tel (A0V in the BPMG) and consider its implications for… CONTINUE READING
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