Primordial Black Hole Binary Animations with Dark Matter Halos

Animations by Bradley J. Kavanagh show the evolution of a binary system of two primordial black holes, each dressed in a local dark matter halo. The pair decouples shortly before matter-radiation equality, with initial semi-major axis of 0.01 pc and eccentricities of 0.95 and 0.995. Further details are available in the associated GitHub repository.

Use Cases

• Visualizing the dynamical evolution of primordial black hole binaries based on the described initial conditions.
• Studying dark matter halo interactions in binary systems based on the pseudo-particle representation.
• Analyzing orbital parameters like eccentricity and semi-major axis over time based on the simulation output.
• Educational demonstration of high-eccentricity binary dynamics in a cosmological context.

Strengths

• Animations are based on specific physical parameters: black hole mass of 30 solar masses and dark matter pseudo-particle mass of 3e-4 solar masses.
• Simulations include two distinct initial eccentricity values (e=0.95 and e=0.995) for comparative analysis.
• Associated code and details are available in a public GitHub repository for reproducibility.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Bradley J. Kavanagh via paperswithcode and associated GitHub repository.

Collection Method

Likely contains results from numerical simulations of astrophysical systems.