research
Cooling Gas Made the Shredded Star Spread
Three-dimensional simulations found recombination could widen near-parabolic tidal debris to roughly 30 stellar radii.
Summary
Three-dimensional simulations found recombination could widen near-parabolic tidal debris to roughly 30 stellar radii.
As a disrupted star’s stream cools, hydrogen recombination and molecular formation return heat to the gas. Simulations with a realistic equation of state find that this added energy ends self-gravitational confinement before bound debris reaches apocenter and expands the stream by factors from a few to a few tens. The work supplies improved initial conditions for later emission models; it is not a direct observation of one tidal disruption event.
Why it matters
Three-dimensional simulations found recombination could widen near-parabolic tidal debris to roughly 30 stellar radii.
Limits and context
- The work supplies improved initial conditions for later emission models; it is not a direct observation of one tidal disruption event.
Key claims
Three-dimensional simulations found recombination could widen near-parabolic tidal debris to roughly 30 stellar radii.
Qualification: The work supplies improved initial conditions for later emission models; it is not a direct observation of one tidal disruption event.
Evidence: source-2026-08-20-007
Sources
- arXiv preprint 2608.18201arXiv · primary research
Corrections
No corrections have been recorded for this story.