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What is overdensity in the cosmology ??
 
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Alisson Pereira Costa



Joined: 21 Dec 2013
Posts: 1
Affiliation: Universidade Estadual de Santa Cruz
PostPosted: December 22 2013  Reply with quote
What is overdensity in the cosmology ??



Thanks
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Himanish Ganjoo



Joined: 26 Feb 2016
Posts: 2
Affiliation: BITS Pilani
PostPosted: February 28 2016  Reply with quote
Typically in cosmology, overdensity refers to the deviation of the density at a point from the average density:

\delta(x) = \frac{\rho(x) - \bar{\rho}}{\bar{\rho}}
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