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This is a Observational study (also classified as: In Vitro Study).

August 25, 2025The Astrophysical JournalOpen Access

Evolution of Supernova Remnants in a Cloudy Multiphase Interstellar Medium

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Supernova remnants in a cloudy medium lose energy to cold clouds, leading to reduced hot gas mass and thermal energy.
The evolution follows a t^2/5 relation, but the mass contribution from cold clouds complicates the dynamics.
Hydrodynamical simulations show radiative cooling affects the energy sink, contrary to many previous models of supernova remnants.
Thermal conduction increases the density of hot gas, altering the remnants' internal structure significantly.

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High-resolution simulations reveal cold clouds affect supernova remnants' mass and energy dynamics, indicating new modeling needs.

Guo et al. (2025) studied this question.

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