Hubble time

Hubble time
The Hubble constant H_0 has units of inverse time. We can therefore define 'Hubble time' as 1/H_0. The value of Hubble time in the standard cosmological model is 4.35Ã-1017 s or 13.

Hubble time: An upper limit on the age of the universe derived from the Hubble constant.
hydrostatic equilibrium: The balance between the weight of the material pressing downward on a layer in a star and the pressure in that layer.

Hubble Time - An estimate of the age of the universe obtained by taking the inverse of Hubble's constant. The estimate is only valid if there has been no acceleration or deceleration of the expansion of the universe ...

Hubble Time
(a) The Hubble time is one divided by the Hubble constant, which gives a number from 10 to 20 billion years. For a flat universe with no cosmological constant, the age of the universe is two-thirds of the Hubble time.

HUBBLE TIME
Hubble Time is an estimate of the age of the universe; it is the inverse of the Hubble constant.

The Hubble time: for simple big-bang models, ages of objects (stars, radioactive nuclei) set bounds on H0.

Hubble Time: The inverse of the Hubble constant. The Hubble time, also called the Hubble age or the Hubble period, ...

Generally, the current star formation rate in late-type spiral galaxies multiplied by a Hubble time is approximately the observed disk mass.

Because the Universe was once so hot and dense that even neutrinos interacted many times during the Hubble time 1/H, there once was a thermal background of neutrinos in equilibrium with the thermal background of photons that is the CMBR.

From the relationship to = 1/Ho, the age of the Universe (or the Hubble time, to) can be estimated to be 14 billion years, consistent with the most accurate current value of 13.7 +/- 0.

See also: Time, Universe, Model, Cluster, Galaxy