ALMA Observations of HD141569's Circumstellar Disk
J.A. White, A.C. Boley, A.M. Hughes, K.M. Flaherty, E. Ford, D., Wilner, S. Corder, M. Payne

TL;DR
This study uses ALMA observations to analyze the complex circumstellar disk of HD141569, revealing its structure, gas content, and potential as a nascent debris system with implications for planet formation.
Contribution
First detailed ALMA imaging of HD141569's disk, providing insights into its morphology, gas and dust mass, and potential second-generation gas origin.
Findings
Disk extends to ~56 au in dust and 30-210 au in gas.
Gas mass estimated at ~2×10^{-3} M_⊕.
Inner disk contains ~160 M_⊕ in small objects.
Abstract
We present ALMA band 7 (345 GHz) continuum and CO(J = 3-2) observations of the circumstellar disk surrounding HD141569. At an age of about 5 Myr, the disk has a complex morphology that may be best interpreted as a nascent debris system with gas. Our ALMA continuum observations resolve a dust disk out to approximately from the star (assuming a distance of 116 pc) with resolution and sensitivity. We measure a continuum flux density for this inner material of (including calibration uncertainties). The CO(3-2) gas is resolved kinematically and spatially from about 30 to 210 au. The integrated CO(3-2) line flux density is . We estimate the mass of the millimeter debris and CO(3-2) gas to be and $\sim2\times 10^{-3}~\rm…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAstrophysics and Star Formation Studies · Stellar, planetary, and galactic studies · Astronomy and Astrophysical Research
