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- W2953242711 abstract "We present the results of a suite of numerical simulations designed to explore the origin of the angular momenta of protostellar cores. Using the hydrodynamic grid code Athena with a sink implementation, we follow the formation of protostellar cores and protostars (sinks) from the subvirial collapse of molecular clouds on larger scales to investigate the range and relative distribution of core properties. We find that the core angular momenta are relatively unaffected by large-scale rotation of the parent cloud; instead, we infer that angular momenta are mainly imparted by torques between neighboring mass concentrations and exhibit a log-normal distribution. Our current simulation results are limited to size scales ∼0.05 pc (∼104 au), but serve as first steps toward the ultimate goal of providing initial conditions for higher-resolution studies of core collapse to form protoplanetary disks." @default.
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- W2953242711 date "2019-04-30" @default.
- W2953242711 modified "2023-10-10" @default.
- W2953242711 title "The Origins of Protostellar Core Angular Momenta" @default.
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- W2953242711 doi "https://doi.org/10.3847/1538-4357/ab12ce" @default.
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