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Related papers: Linking Outer Disk Pebble Dynamics and Gaps to Inn…

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Volatiles like $H_2O$ are present as ice in solids in the outer cold regions of protoplanetary disks and as vapor in the warm inner regions within the water snow line. Icy pebbles drifting inwards from the outer disk sublimate after…

Earth and Planetary Astrophysics · Physics 2024-12-09 Whittney Easterwood , Anusha Kalyaan , Andrea Banzatti

Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, the presence of gaps in disks may have a profound effect on pebble delivery into the inner disk,…

The mid-infrared water vapor emission spectrum provides a novel way to characterize the delivery of icy pebbles towards the innermost ($<5$ au) regions of planet-forming disks. Recently, JWST MIRI-MRS showed that compact disks exhibit an…

The influx of icy pebbles to the inner regions of protoplanetary disks constitutes a fundamental ingredient in most planet formation theories. The observational determination of the magnitude of this pebble flux and its dependence on disk…

We present a synergic study of protoplanetary disks to investigate links between inner disk gas molecules and the large-scale migration of solid pebbles. The sample includes 63 disks where two types of measurements are available: i)…

Previous analyses of mid-infrared water spectra from young protoplanetary disks observed with the Spitzer-IRS found an anti-correlation between water luminosity and the millimeter dust disk radius observed with ALMA. This trend was…

Infrared spectroscopy, e.g., with JWST, provides a glimpse into the chemical inventory of the innermost region of protoplanetary discs, where terrestrial planets eventually form. The chemical make-up of regions inside snowlines is connected…

Giant exoplanets seem to have on average a much larger heavy element content than the solar system giants. Past attempts to explain these heavy element contents include collisions between planets, accretion of volatile rich gas and…

Earth and Planetary Astrophysics · Physics 2023-11-01 Bertram Bitsch , Jingyi Mah

Improved observational technologies have enabled the resolution of substructures and the measurement of chemical abundances in discs. Understanding the chemical composition of the inner disc allows us to infer the building blocks available…

Earth and Planetary Astrophysics · Physics 2024-06-26 Jingyi Mah , Sofia Savvidou , Bertram Bitsch

The chemical evolution of protoplanetary discs is not fully understood, several factors influence the final distribution of disc material. One such factor are inward drifting and evaporating pebbles that enrich the inner disc with vapour.…

Earth and Planetary Astrophysics · Physics 2025-02-06 Julia Lena Lienert , Bertram Bitsch , Thomas Henning

The chemical evolution of the inner regions of protoplanetary discs is a complex process. Several factors influence it, one being the inward drift and evaporation of volatile-rich pebbles. During the disc's evolution, its inner part is…

Earth and Planetary Astrophysics · Physics 2025-08-06 Julia Lena Lienert , Bertram Bitsch , Thomas Henning

ALMA has revealed that the millimetre dust structures of protoplanetary discs are extremely diverse. It has been proposed that the strength of H$_2$O emission in the inner disc particularly depends on the influx of icy pebbles from the…

The vertical distribution of pebbles in protoplanetary disks is a fundamental property influencing planet formation, from dust aggregation to the assembly of planetary cores. In the outer region of protoplanetary disks, the intensity of the…

Recent observations, including those by JWST, suggest that the atmospheres of many gas giant exoplanets have super-stellar metallicity that is anti-correlated with planetary mass. Several studies suggest that the super-stellar metallicity…

Earth and Planetary Astrophysics · Physics 2026-05-27 Yoshitaka Ikeda , Kazumasa Ohno , Satoshi Okuzumi

We study the dynamics of gas and dust in a protoplanetary disk in the presence of embedded planets. We investigate the conditions for dust-gap formation in terms of particle size and planetary mass. We also monitor the amount of dust that…

Astrophysics · Physics 2009-11-11 S. -J. Paardekooper , G. Mellema

The processes that govern the evolution of dust and water (in the form of vapor or ice) in protoplanetary disks are intimately connected. We have developed a model that simulates dust coagulation, dust dynamics (settling, turbulent mixing),…

Earth and Planetary Astrophysics · Physics 2016-12-28 Sebastiaan Krijt , Fred J. Ciesla , Edwin A. Bergin

During protoplanetary disk formation, dust grains located in the outer disk retain their pristine icy composition, while solids in the inner stellar-heated disk undergo volatile loss. This process may have left a fossil record in Solar…

Earth and Planetary Astrophysics · Physics 2024-05-15 Maria Jose Colmenares , Michiel Lambrechts , Elishevah van Kooten , Anders Johansen

We present deep Herschel-PACS spectroscopy of far-infrared water lines from a sample of four protoplanetary disks around solar-mass stars, selected to have strong water emission at mid-infrared wavelengths. By combining the new Herschel…

In protoplanetary disks, small mm-cm-sized pebbles drift inwards which can aid planetary growth and influence the chemical composition of their natal disks. Gaps in protoplanetary disks can hinder the effective inward transport of pebbles…

Earth and Planetary Astrophysics · Physics 2024-10-30 Mark Eberlein , Bertram Bitsch , Ravit Helled

Numerous protoplanetary disks exhibit shadows in scattered light observations. These shadows are typically cast by misaligned inner disks and are associated with observable structures in the outer disk such as bright arcs and spirals.…

Earth and Planetary Astrophysics · Physics 2025-04-29 Alexandros Ziampras , Cornelis P. Dullemond , Tilman Birnstiel , Myriam Benisty , Richard P. Nelson
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