Astrophysics, Cosmology & Relativity
4 terms
Main Sequence
Astrophysics, Cosmology & Relativity
H-R Diagram Band
The continuous evolutionary diagonal band on the Hertzsprung-Russell diagram containing stars fusing hydrogen into helium in their cores.
L ∝ M^3.5 (Mass-Luminosity Relation)
Mass-Energy Equivalence
Astrophysics, Cosmology & Relativity
Joules or MeV / GeV
The fundamental relativistic principle stating that mass and energy are directly proportional and interchangeable physical quantities.
E = m c² = γ m₀ c²
Minkowski Space
Astrophysics, Cosmology & Relativity
Flat 4D Spacetime Metric
The flat four-dimensional spacetime manifold combining 3D Euclidean space and time used to formulate Special Relativity.
ds² = -c² dt² + dx² + dy² + dz²
Multiverse
Astrophysics, Cosmology & Relativity
Cosmological Hypothesis
A hypothetical set of multiple co-existing universes that together comprise all of physical reality.
Cosmic Inflation Bubble Universes & Many-Worlds Everett Branching