3 papers
astro-ph.GA2026
Towards A Universal Analytical Model of Population III Star Formation: A Bridge Between Cosmological Scales and Protostars
James Gurian, Boyuan Liu, Donghui Jeong +4
We construct an analytical model of Population III star formation that connects the cosmological radiation background to sub-AU protostellar disk fragmentation, a dynamic range ina…
astro-ph.CO2025
Core Collapse Beyond the Fluid Approximation: The Late Evolution of Self-Interacting Dark Matter Halos
James Gurian, Simon May
We show that the gravothermal collapse of self-interacting dark matter (SIDM) halos can deviate from local thermodynamic equilibrium. As a consequence, the self-similar evolution p…
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…