Abstract / Description of output
Our VLA and MERLIN radio images of the HL Tau system trace the emission from the proto-planetary disc at ultra-high resolution. A candidate proto-planet is seen at tens of AU from the star, at these long wavelengths where it stands out from the bright background disc. A simulation shows that gravitational instability within the disc is capable of forming this 10 Jupiter-mass object. Submillimetre images made recently with SCUBA-2 show that HL Tau's disc is perturbed by an interaction with XZ Tau, and this may have helped trigger disc fragmentation, in a flyby event as recent as a few thousand years ago.
Original language | English |
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Pages | 805 |
Publication status | Published - 1 Sept 2011 |
Event | Extreme Solar Systems II - Wyoming, United States Duration: 11 Sept 2011 → 17 Sept 2011 |
Conference
Conference | Extreme Solar Systems II |
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Country/Territory | United States |
City | Wyoming |
Period | 11/09/11 → 17/09/11 |
Other | American Astronomical Society, ESS meeting #2, #8.05 |