Astrophysics (index)about


(study of the life of the universe)

Cosmology is the study of the origin, the evolution, and the eventual fate of the universe. The term physical cosmology can be used to specify that physical science is the basis of your study.

Current physical cosmology is based on the cosmological principle that sufficiently basic natural laws that apply here also apply to the far reaches of the universe, i.e., objects observed at a distance are assumed to follow such laws. Current thought places the beginning of the universe 13.8 billion years ago, the label being the Big Bang.

The adjective cosmological is often used to mean "involving distances or times when cosmology is relevant", i.e., the early universe and distances at which only the early universe is visible because of the time required for the electromagnetic radiation to reach us.

A cosmogony is a theory or model of the origin of the universe.


Referenced by:
Atacama Cosmology Telescope (ACT)
adaptive mesh refinement (AMR)
adaptive refinement tree (ART)
band shifting
Big Bang nucleosynthesis (BBN)
Big Bang
Canadian Institute for Theoretical Astrophysics (CITA)
coherent light
computational astrophysics
cosmic distance ladder
cosmological constant (Λ)
cosmological principle
cosmological zoom simulation
conditional stellar mass function (CSMF)
Dark Energy Spectroscopic Instrument (DESI)
Deep Lens Survey (DLS)
false vacuum
gigayear (Gy)
halo mass function
halo abundance matching (HAM)
Institut de radioastronomie millimétrique (IRAM)
Institute of Theoretical Astrophysics (ITA)
Lambda-CDM model (ΛCDM)
light cone
large scale structure (LSS)
luminosity distance (dL)
neutrino (ν)
neutron capture
Navarro-Frenk-White profile (NFW profile)
N-point function
peculiar velocity
radio source counts
redshift-magnitude relation
scale factor
Supernova Cosmology Project (SCP)
sound speed
standard model
star count
Subaru Telescope
symmetry breaking
Sunyaev-Zel'dovich effect (SZ Effect)
timescale (t)
Theory of Everything (TOE)
topological defect
Type Ia supernova
ultra-faint dwarf galaxy (UFD)
weak lensing
Wide-field Multi-object Spectrograph (WFMOS)
Wilkinson Microwave Anisotropy Probe (WMAP)