220 citations · 1.2k across the 39 of their papers we have counts for
3 papers · 1 filter
What is the distance to the CMB?
Chris Clarkson, Obinna Umeh, Roy Maartens +1
The success of precision cosmology depends not only on accurate observations, but also on the theoretical model - which must be understood to at least the same level of precision.…
Non-linear relativistic contributions to the cosmological weak-lensing convergence
Sambatra Andrianomena, Chris Clarkson, Prina Patel +2
Relativistic contributions to the dynamics of structure formation come in a variety of forms, and can potentially give corrections to the standard picture on typical scales of 100…
Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification. II - Derivation
Obinna Umeh, Chris Clarkson, Roy Maartens
We present a derivation of the cosmological distance-redshift relation up to second order in perturbation theory. In addition, we find the observed redshift and the lensing magnifi…