A Runge-Kutta-Gegenbauer super-time-stepping method for stable, efficient handling of anisotropic non-ideal MHD diffusion.
Protostars and Planets VII , year = 2023, editor =
11 Pith papers cite this work. Polarity classification is still indexing.
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AGN dust tori can form tens of millions of planetesimals from Earth to super-Jupiter masses via streaming instability, with continued growth to stellar masses through pebble and gas accretion.
A new implementation of radial rays and multigroup radiation transport in Athena++ for frequency-dependent stellar irradiation achieves 2-5% average temperature agreement with Monte Carlo benchmarks in hydrostatic disk models using 64 bands.
Non-ideal MHD shearing-box simulations with a new damping scheme yield power-law scalings for wind-driven accretion rates based on midplane plasma beta, ambipolar Elsasser number, and active layer thickness that match results within a factor of 2-3.
Jet feedback in centrally concentrated clouds reduces star formation efficiency to 12-16% and yields cluster structures more consistent with observations than models without jets.
2D radiation-hydrodynamical simulations find accretion outbursts unstable to Rossby-wave instability, forming vortices that suppress planetesimal formation until post-burst quiescence.
Compact protoplanetary discs disperse inside-out when photoevaporation is limited to their cut-off radius, unlike the outside-in dispersal seen in extended discs.
Modeling of ALMA observations reveals diverse vertical heights for millimeter dust in six protoplanetary disks, from very thin in T Cha and PDS 111 to extended in DoAr 25, with models failing to match small dust distributions.
Ionization rates in the envelopes of NGC-1333 IRAS4A, L1448-C, and L1157 reach 1e-16 to 1e-13 s^{-1}, far above the ISM baseline of 6e-17 s^{-1}.
The paper proposes the iSEEDs project to integrate machine learning with astrochemistry for extracting physical conditions and molecular abundances from protostellar disk datasets.
The Bern Model has incorporated MHD disk evolution, pebble accretion, and improved interiors, yielding quantitative matches to exoplanet mass functions, radius distributions, and system architectures.
citing papers explorer
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A robust super-time-stepping scheme for Ohmic and ambipolar diffusion
A Runge-Kutta-Gegenbauer super-time-stepping method for stable, efficient handling of anisotropic non-ideal MHD diffusion.
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Active Galactic Nucleus Tori: Potential Birthplace to Millions of Planets
AGN dust tori can form tens of millions of planetesimals from Earth to super-Jupiter masses via streaming instability, with continued growth to stellar masses through pebble and gas accretion.
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A Framework to Model Stellar Irradiated Disks with Frequency-dependent Absorption and Scattering Opacities in Athena++
A new implementation of radial rays and multigroup radiation transport in Athena++ for frequency-dependent stellar irradiation achieves 2-5% average temperature agreement with Monte Carlo benchmarks in hydrostatic disk models using 64 bands.
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Beyond the $\alpha$ model: scaling the wind-driven accretion rate in protoplanetary disks using systematic non-ideal magnetohydrodynamical simulations
Non-ideal MHD shearing-box simulations with a new damping scheme yield power-law scalings for wind-driven accretion rates based on midplane plasma beta, ambipolar Elsasser number, and active layer thickness that match results within a factor of 2-3.
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Centrally concentrated star formation in young clusters II: Jet feedback
Jet feedback in centrally concentrated clouds reduces star formation efficiency to 12-16% and yields cluster structures more consistent with observations than models without jets.
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Planet formation at the inner edge of the dead zone II. Outbursts, rings, vortices, and suppression of planetesimal formation
2D radiation-hydrodynamical simulations find accretion outbursts unstable to Rossby-wave instability, forming vortices that suppress planetesimal formation until post-burst quiescence.
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The dispersal of compact protoplanetary discs
Compact protoplanetary discs disperse inside-out when photoevaporation is limited to their cut-off radius, unlike the outside-in dispersal seen in extended discs.
-
Diverse dust vertical height and settling strength conditions in protoplanetary discs
Modeling of ALMA observations reveals diverse vertical heights for millimeter dust in six protoplanetary disks, from very thin in T Cha and PDS 111 to extended in DoAr 25, with models failing to match small dust distributions.
-
Evidence of Enhanced Ionization in Protostellar Envelopes
Ionization rates in the envelopes of NGC-1333 IRAS4A, L1448-C, and L1157 reach 1e-16 to 1e-13 s^{-1}, far above the ISM baseline of 6e-17 s^{-1}.
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Astrochemical Study of Early Embedded Disks
The paper proposes the iSEEDs project to integrate machine learning with astrochemistry for extracting physical conditions and molecular abundances from protostellar disk datasets.
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The formation of planetary systems: physics, populations, and architectures
The Bern Model has incorporated MHD disk evolution, pebble accretion, and improved interiors, yielding quantitative matches to exoplanet mass functions, radius distributions, and system architectures.