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Relativistic Jets & Doppler Beaming 3D Explorer vs alternatives
Relativistic Jets & Doppler Beaming 3D Explorer computes and animates live Doppler-beaming and apparent-motion numbers for a black-hole jet in one 3D scene - a physics textbook diagram wins as a fixed printed reference; the Photon Sphere & ISCO 3D Explorer wins for the exact Kerr geodesic geometry.
| Option | Strength | Access | Trade-off |
|---|---|---|---|
| Relativistic Jets & Doppler Beaming 3D Explorer | Live Doppler-beaming and superluminal-motion formulas, real M87 preset | Free, in-browser, no account | Schematic jet geometry, not a GRMHD simulation |
| Physics textbook diagram | Fixed printed reference, full derivation | Requires the book | No interactivity, one case only |
| Photon Sphere & ISCO 3D Explorer (this site) | Exact Kerr photon-orbit and ISCO radii, spin slider | Free, in-browser | No jet, no Doppler-beaming physics |
Key published figures
| Figure | Value |
|---|---|
| M87 jet viewing angle | about 17 degrees |
| M87 jet intrinsic Lorentz factor | about 10.9 (inner jet) |
| M87 HST-1 knot apparent speed | 6.3 +/- 0.4c |
| Illustrative flux-ratio exponent | 3 + 0.75 |
Start with the step-by-step guide or when to use. Open the Relativistic Jets & Doppler Beaming 3D Explorer.
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