7 papers
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…
Radiating Bondi Flows II: Giant Planet Accretion Models
Avery Bailey, Kaitlin Kratter, Andrew Youdin
In the core accretion model of giant planet formation, the late stages of runaway growth are regulated by the hydrodynamic infall of gas from the protoplanetary disk. For a subset…
Radiating Bondi Flows I: Dimensionless Framework and Constant Opacity Solutions
Avery Bailey, Andrew Youdin, Kaitlin Kratter
In this paper, we extend the foundational work of Bondi (1952) to include the effects of radiative feedback in gas-pressure-dominated environments. We construct steady-state spheri…
Hydrodynamic outflows of proto-lunar disk volatiles
Kaveh Pahlevan, Andrew N. Youdin, Paolo A. Sossi
Volatile elements - those that vaporize at low temperatures - are depleted in lunar rocks relative to terrestrial rocks. This systematic chemical depletion is evidence for vaporiza…
Probing Conditions for Strong Clumping by the Streaming Instability: Small Dust Grains and Low Dust-to-gas Density Ratio
Jeonghoon Lim, Jacob B. Simon, Rixin Li +5
The streaming instability (SI) is a leading mechanism for concentrating solid particles into regions dense enough to form planetesimals. Its efficiency in clumping particles depend…
Formation of Giant Planets
Andrew N. Youdin, Zhaohuan Zhu
Giant planets dominate the mass of many planetary systems, including the Solar System, and represent the best-characterized class of extrasolar planets. Understanding the formation…