Imaging The Candidate Proto-planet HL Tau B

Details Imaging The Candidate Proto-planet HL Tau B Imaging The Candidate Proto-planet HL Tau B

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.0805g&link_type=abstract

American Astronomical Society, ESS meeting #2, #8.05

Astronomy and Astrophysics

Astronomy

Scientific paper

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.

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