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Protoplanetary Disc Oph163131 – Surface Layers Lack Grains Larger than 1 µm
JWST imaging of edge-on protoplanetary disks. III. Drastic morphological transformation across the mid-infrared in Oph163131. Marion Villenave et. al. https://t.co/aMCnahCjLs pic.twitter.com/NZDlPOVrjK — AstroArxiv (@AstroArxiv) October 2, 2024 https://platform.twitter.com/widgets.js “The lack of sharp-edged structures in the extended patchy emission argues against the presence of shocks and suggests photoexcitation or stochastic heating of material smoothly flowing away…
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Detect Water in Protoplanetary Discs with JWST-MIRI Tools
“The analysis suggests that all nascent planetary systems may have the same water resources that we did.”
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Accretion Only Planet Formation Models will Slowly be Replaced by Hydrodynamic Hybrid Models…
“Our results demonstrate that even intermediate-mass protoplanets — less detectable, but more ubiquitous, than super-Jupiters — are capable of indirectly inducing large-scale spiral disk features, and underscore the importance of including radiation physics in efforts to reproduce observations.” Reference: Can gap-edge illumination excite spirals in protoplanetary disks? Three-temperature radiation hydrodynamics and NIR image modelling Dhruv…
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Very-Low-Mass Star ISO-Chal 147 with Abundant Hydrocarbons in Protoplanetary Disk
ISO-Chal-1471 is a young, low-mass star located approximately 600 light-years away from Earth. ISO-Chal 147 is located in the Chamaeleon I star-forming cloud. It is a red dwarf star, which is a type of star that is very common in the Milky Way and burns through fuel slowly. Here are the key points from recent…
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Dracula’s Chivito (IRAS 23077+6707) Largest Known Protoplanetary Disk with Carbon-Based Molecules
Dracula’s Chivito, also known as IRAS 23077+6707, is the largest known disk of its kind. It was discovered during a study of active galactic nucleus candidates using images from the Pan-STARRS research project. This edge-on disk completely obscures its central star and is associated with an infrared light source in the same region of the sky.…
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Star TW Hydrae with Protoplanetary Disc
TW Hydrae is a young T Tauri star located about 196 light-years away in the constellation Hydra. It is surrounded by a protoplanetary disk. Protoplanetary Disk Chemical Composition The TW Hydrae disk provides a detailed look at the chemical environment where planets are forming, with clear evidence of snow lines, dust evolution, and volatile depletion…
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Circular Astronomy 