Tag: supernovae

• The distance duality relation

  

  The distance duality relation tells us how, assuming that photons propagate on null geodesics in a pseudo-Riemannian spacetime and that their number is conserved, luminosity and angular diameter distances are related, via where dL is the luminosity distance, dA the angular diameter distance and z the redshift. This relation was introduced by Etherington in 1933,…

  Natalie Hogg

  October 9, 2020

  PhD, Science

  astrophysics, cosmology, distance duality, forecasting, gravitational waves, gravity, mock data, paper, PhD, physics, supernovae