Evidence for Systematically Larger Dust Grains in Upper Scorpius Relative to Taurus Disks

arXiv:2605.26736 · astro-ph.EP · Submitted 2026-05-26 · Read on arXiv

Yao Liu, Ilaria Pascucci, Fei Gao, Chengyan Xie, Feng Long, John Carpenter, Klaus M. Pontoppidan, Andrea Banzatti, Richard Booth, Steve Ertel, Min Fang, Uma Gorti, Tamara Molyarova

astro-ph.EP

Submitted: 2026-05-26

Comments: 20 pages, 7 figures, accepted for publication in ApJ

Code: https://github.com/cdominik/optool

Project page: https://johannesbuchner.github.io/UltraNest

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• James Webb Space Telescope — 3× in this paper
• Bayesian Inference — 1× in this paper · explained in 5 episodes
• Core — 1× in this paper · explained in 2 episodes
• Formation and Evolution of Planetary Systems — 1× in this paper
• Robustness — 1× in this paper · explained in 5 episodes
• Streaming Instability — 1× in this paper · explained in 2 episodes

Sources

• Planet Formation Theory in the Era of ALMA and Kepler: from Pebbles to Exoplanets
• The Role of Disk Winds in the Evolution and Dispersal of Protoplanetary Disks
• Mineralization, Grain Growth and Disk Structure: Observations of the Evolution of Dust in Protoplanetary Disk

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