3 papers
astro-ph.SR2025
Connecting a Magnetized Disk to a Convective Low-mass Protostar: A Global Three-dimensional Model of Boundary Layer Accretion
Shinsuke Takasao, Takashi Hosokawa, Kengo Tomida +1
In the early stages of star formation, boundary layer accretion, where protostars accrete material from disks extending down to their surfaces, plays a crucial role. Understanding…
astro-ph.GA2024
An Analytic Model of Gravitational Collapse Induced by Radiative Cooling: Instability Scale, Infall Velocity, and Accretion Rate
James Gurian, Boyuan Liu, Donghui Jeong +3
We present an analytic description of the spherically symmetric gravitational collapse of radiatively cooling gas clouds, which illustrates the mechanism by which radiative cooling…
astro-ph.GA2024
Gas Dynamical Friction on Accreting Objects
Tomoya Suzuguchi, Kazuyuki Sugimura, Takashi Hosokawa +1
The drag force experienced by astronomical objects moving through gaseous media (gas dynamical friction) plays a crucial role in their orbital evolution. Ostriker (1999) derived a…