Astrophysics (Index)About

cosmic time

(time since the Big Bang)

The cosmic time of an event is the time counted since the Big Bang. In contrast, lookback time is time counted backwards from the present. In scientific study, cosmic time is of most use in describing theories of the early universe, such as events that would happen after specific time-intervals from the Big Bang. Any determination of current and recent cosmic time values depends upon the Hubble constant, which is subject to future correction and refinement.


(time,cosmology,measure,Big Bang)
Further reading:
https://en.wikipedia.org/wiki/Cosmic_time
https://dictionary.obspm.fr/index.php/?formSearchTextfield=cosmic+time&showAll=1
https://www.einstein-online.info/en/explandict/cosmic-time/
https://astronomy.swin.edu.au/cosmos/l/lookback+time

Referenced by pages:
Canada-France Redshift Survey (CFRS)
critical density (ρc)
damped Lyman alpha absorber (DLA)
density parameter
HFLS3
Hubble constant (H0)
ionized carbon fine structure line ([CII])
PAPER
peak star-formation epoch
redshift (z)

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