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Fate of a Dying Star's Core
An illustrative compartment model of where the infalling matter of a collapsing massive stellar core ends up. The core can collapse straight to a black-hole singularity, or attempt a dark-energy-driven 'bounce' (an inner Big Bang). The bounce either stabilizes into a gravastar remnant (no singularity, no event horizon) or fails and still collapses to a singularity. Based on Jampolski & Rezzolla, 'Formation of gravastars', Phys. Rev. D 113(12), 2026.
Compartments
| Name | Color | Initial Fraction |
|---|---|---|
| Collapsing core | — | 0.98 |
| Bounce (inner Big Bang) | — | 0.02 |
| Gravastar | — | 0 |
| Black hole | — | 0 |
Flows
| From | To | Rate |
|---|---|---|
| infalling | bounce | k_bounce * infalling |
| infalling | singularity | k_collapse * infalling |
| bounce | remnant | k_remnant * bounce |
| bounce | singularity | k_singularity * bounce |
Parameters
| Name | Label | Default | Range |
|---|---|---|---|
| k_bounce | Rate at which the collapsing core ignites a dark-energy bounce. | 0.25 | 0 – 1 |
| k_collapse | Rate of direct collapse to a black hole. | 0.15 | 0 – 1 |
| k_remnant | Rate at which a bounce stabilizes into a gravastar. | 0.3 | 0 – 1 |
| k_singularity | Rate at which a bounce fails back into a singularity. | 0.15 | 0 – 1 |
User-Facing States
Collapsing core infalling * N
Bounce (inner Big Bang) bounce * N
Gravastar remnant * N
Black hole singularity * N
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