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July 23, 2026Publications of the Astronomical Society of Australia0 citationsOpen Access

Interaction Phases of Engine-Driven Explosions and High-Energy Winds

The interaction phase of engine-driven explosions and high-energy winds

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Authors

BABenjamin AmendCLChristopher LagomarsinoECEric R. Coughlin

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Overview

Systematic study quantifies interaction phases in astrophysical outflows, suggesting implications for star formation.

Key Points

  • To systematically analyze the interaction phases of adiabatic winds expanding into power-law density profiles.
  • Utilized hydrodynamic simulations to capture shock behavior in wind-initiated explosions.
  • Analyzed relaxation timescales and similarity solutions for fluid velocity, density, and pressure.
  • Studied adiabatic winds with density profiles ranging from 0 ≤ n ≤ 2.
  • Identified that interaction solutions are reached within a few dynamical times, valid until the reverse-shocked shell thickens.
  • For n < 2, flow converges to generalized scaling of R s proportional to t^3/(5−n).
  • Special case n = 2 persists in a single similarity state.

Cite This Study

Amend et al. (2026) studied this question.

synapsesocial.com/papers/6a61afe0faa9903c5116a8d9https://doi.org/10.1017/pasa.2026.10235
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