English-French-Persian

Number of Results: 1 Search : accelerating Universe

accelerating Universe giti-ye šetâbandé (#) Fr.: univers en accélération The deduction based on the observation that the most distant
→ w),
where R is the linear → cosmic scale factor
of the expanding Universe, G
the → gravitational constant,
ρ the mean density of the Universe, and w
the → equation of state parameter
representing dark energy. The expansion
accelerates whenever w is more negative than -1/3.
The Nobel Prize in Physics 2011 was awarded to the
initiators of this concept,
Saul Perlmutter, Brian P. Schmidt, and Adam G. Riess,
for their discovery of the accelerating expansion of the Universe through
observations of distant supernovae. See also the original paper:
Perlmutter et al. 1999, ApJ 517, 565.→ |