{"version":"1.0","type":"link","title":"Deceleration parameter - Newikis","description":"The deceleration parameter in cosmology is a dimensionless measure of the cosmic acceleration of the expansion of space in a Friedmann–Lemaître–Robertson–Walker universe. It is defined by: where is the scale factor of the universe and the dots indicate derivatives by proper time. The expansion of…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/e/ed/WMAP_2012.png/1280px-WMAP_2012.png","thumbnail_width":1280,"thumbnail_height":640}