• All Aboard the ARK(S Survey)! • byJoe Williams| Feb 12, 2026 |Daily Paper Summaries|0 comments Title:The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) I: Motivation, sample, data reduction, and results overview Authors:S. • Wilner First-author institution:Department of Physics and Astronomy, University of Exeter, Stocker Road, Exeter EX4 4QL, UK Status:Published in Astronomy & Astrophysics (Open Access) Searching for Young Exoplanets Much of our understanding ofexoplanetary systemshas come from our own solar system and our observations of exoplanets. • Astronomers use a variety of techniques, like measuring the change in starlight when exoplanetstransit across their host star; measuring how theygravitationally pull on; eventaking photos of the exoplanets directly. • And there arestill more techniques to list! • But planets can be tens-to-hundreds-to-thousands of millions of years old.
Article Summaries:
- Summary
The ARKS (ALMA survey to Resolve exoKuiper belt Substructures) program has released its first high‑resolution observations of debris discs around young stars. Using ALMA, the survey mapped dust and CO gas distributions with unprecedented detail, revealing diverse ring structures-some narrow, some broad-and identifying gaps in roughly one‑third of the discs that may indicate unseen planets. Vertical dust profiles varied widely, with some discs appearing very thin while others showed thicker, non‑Gaussian distributions. These findings provide the first direct evidence of how planets can sculpt exo‑Kuiper belts, offering new insights into the early stages of planetary system evolution.
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