Astrophysics, Cosmology & Relativity
3 terms
Hawking Radiation
Astrophysics, Cosmology & Relativity
Kelvin (Blackbody Temperature T_H)
Thermal blackbody radiation predicted to be emitted by black holes due to quantum field fluctuations near the event horizon.
T_H = ℏ c³ / (8 π G M k_B), P = ℏ c⁶ / (15360 π G² M²)
Hertzsprung-Russell (H-R) Diagram
Astrophysics, Cosmology & Relativity
Luminosity (L_☉) vs Surface Temp (K)
A foundational scatter plot of stellar luminosity versus surface temperature (or spectral type) used to trace stellar evolution phases.
L ∝ R² T^4 (Plot of Absolute Magnitude vs Spectral Type)
Hubble's Law
Astrophysics, Cosmology & Relativity
km/s/Mpc (Hubble Constant)
The cosmological observation that galaxies recede from Earth at velocities directly proportional to their proper distance.
v = H₀ d, H₀ ≈ 70 (km/s) / Mpc