activity
20042026
most citedThe Pluto system: Initial results from its exploration by New Horizons

485 citations · 3.4k across the 72 of their papers we have counts for

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37 papers · 1 filter

astro-ph.EP2026

Evidence for possible N2 basal flow beneath Pluto northern Sputnik Planitia

S. Alan Stern, Orkan Umurhan, Gary D. Clow +4

Sputnik Planitia (SP) on Pluto is a large, predominantly N2 ice-filled basin with a surface area of one million square kilometers; it is among the most spectacular surface features…

astro-ph.EP2026

A Comparative Study of the Streaming Instability: Unstratified Models with Marginally Coupled Grains

Stanley A. Baronett, Wladimir Lyra, Hossam Aly +19

The streaming instability is a leading mechanism for concentrating solids and initiating planetesimal formation in protoplanetary disks. Although numerous studies have explored its…

astro-ph.EP2025

Evidence For Turbulent Concentration In Particle-Laden Midplane Layers of Planet-Forming Disks

Orkan M. Umurhan, Debanjan Sengupta, Thomas Hartlep +2

We investigate the axisymmetric, weakly turbulent state of settled particle layers in a model of a globally laminar protoplanetary disk. We focus on conditions in which the large-s…

astro-ph.EP2025

Bridging Unstratified and Stratified Simulations of the Streaming Instability for Grains

Jeonghoon Lim, Stanley A. Baronett, Jacob B. Simon +4

The streaming instability (SI), driven by aerodynamic coupling between solids and the gas under a global radial pressure gradient, concentrates solids and facilitates planetesimal…

astro-ph.EP2024★ 3 cited

Outbursts Upon Cooling of Low-Temperature Binary Mixtures: Experiments and Their Planetary Implications

S. M. Raposa, A. E. Engle, S. P. Tan +7

For many binary mixtures, the three-phase solid-liquid-vapor equilibrium curve has intermediate pressures that are higher than the pressure at the two pure triple points. This curv…

astro-ph.EP2024

Rapid protoplanet formation in vortices: three-dimensional local simulations with selfgravity

Wladimir Lyra, Chao-Chin Yang, Jacob B. Simon +2

Disk vortices, seen in numerical simulations of protoplanetary disks and found observationally in ALMA and VLA images of these objects, are promising sites for planet formation giv…