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astro-ph.EP2025

Oxygen Isotope Constraints on the Importance of Photochemical Processing in Protoplanetary Disks

Fred J. Ciesla, Eric Van Clepper, Jennifer Bergner +1

Observations have revealed evidence of photochemical processing in protoplanetary disks. This processing occurs in the photon dominated layer, the optically thin regions of the dis…

astro-ph.EP2025

Dust Recycling and Icy Volatile Enhancement (DRIVE): A Novel Method of Volatile Enrichment in Cold Giant Planets

Eric R. Van Clepper, Felipe Alarcón, Edwin Bergin +1

Giant planet atmospheres are thought to reflect the gas phase composition of the disk when and where they formed. However, these atmospheres may also be polluted via solid accretio…

astro-ph.EP2025

Direct Measurement of Extinction in a Planet-Hosting Gap

G. Cugno, S. Facchini, F. Alarcon +12

Recent disk observations have revealed multiple indirect signatures of forming gas giant planets, but high-contrast imaging has rarely confirmed the presence of the suspected pertu…

astro-ph.EP2025

Burned to ashes: How the thermal decomposition of refractory organics in the inner protoplanetary disc impacts the gas-phase C/O ratio

Adrien Houge, Anders Johansen, Edwin Bergin +5

The largest reservoir of carbon in protoplanetary discs is stored in refractory organics, which thermally decompose into the gas-phase at the organics line, well interior to the wa…

astro-ph.EP2024

Thermal Structure and Millimeter Emission of Protoplanetary Disk with embedded protoplanets from radiative transfer modeling

Felipe Alarcón, Edwin Bergin

The discovery of protoplanets and circumplanetary disks provides a unique opportunity to characterize planet formation through observations. Massive protoplanets shape the physical…