Physics / research
Extreme astrophysical accelerators
Analyze accretion, shocks, compact-object transients, and high-energy messengers using physical energy budgets and explicitly constrained source models.
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Module 01 research
Extreme astrophysical accelerators
Analyze accretion, shocks, compact-object transients, and high-energy messengers using physical energy budgets and explicitly constrained source models.
- 01
Accretion requires an angular momentum budget
Derive a steady disk surface density from torque transport and an explicit inner boundary.
28 min - 02
Disk luminosity follows energy transport and boundary conditions
Connect the one-face temperature profile to total luminosity while distinguishing Newtonian and relativistic efficiency.
28 min - 03
A regular sonic transition selects spherical accretion
Derive an isothermal Bondi rate using the sonic critical point and reservoir boundary conditions.
28 min - 04
Repeated shock crossings produce a conditional power law
Derive a test-particle spectrum and compare acceleration with age, escape and cooling.
28 min - 05
A cosmic-ray spectrum includes its propagation history
Relate diffusion length and escape to source spectra without treating arrival directions as straight source pointers.
28 min - 06
Relativistic jets compress arrival times and shift radiation
Separate bulk motion, electron motion and cosmological redshift when interpreting variability and emission.
28 min - 07
A burst and its afterglow probe different physical stages
Use compactness, pair transparency and blast-wave scalings without identifying one prompt-emission model as an observation.
28 min - 08
Expansion and photon diffusion reshape supernova energy
Relate an illustrative ejecta energy to a diffusion light-curve scale without equating luminosity and explosion power.
28 min - 09
Hadronic neutrinos require targets, thresholds and decay
Compare pp and photohadronic kinematics, interaction efficiency and the detector’s energy-dependent response.
28 min - 10
A coincidence becomes evidence through a specified search
Distinguish measured arrival delays, false-alarm probabilities and posterior source odds.
28 min