Kinematic evidence for an embedded protoplanet in a circumstellar disc

2018/05/25 by C. Pinte, D. J. Price, F. Menard +6 · 4 citations
Physics and Astronomy · #astro-ph.SR #astro-ph.EP

paper · pdf · doi:10.3847/2041-8213/aac6dc

Accepted for publication to ApJL, 8 pages, 5 figures

arxiv created 2018/05/25 · arxiv updated 2018/06/27

Abstract

Discs of gas and dust surrounding young stars are the birthplace of planets. However, direct detection of protoplanets forming within discs has proved elusive to date. We present the detection of a large, localized deviation from Keplerian velocity in the protoplanetary disc surrounding the young star HD163296. The observed velocity pattern is consistent with the dynamical effect of a two Jupiter-mass planet orbiting at a radius ≈ 260au from the star.

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• Time-variable Scattered Light in Herbig Disks Observed with Subaru/SCExAO*
• Circumplanetary Disk Candidate in the Disk of HD 163296 Traced by Localized Emission from Simple Organics
• exoALMA I. Science Goals, Project Design and Data Products
• The Dynamic Inner Disk of a Planet-forming Star