497 citations · 8.4k across the 112 of their papers we have counts for
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Primordial magnetic fields and the Hubble tension
Karsten Jedamzik, Levon Pogosian
Magnetic fields appear to be present in essentially all astrophysical environments, including galaxies, clusters of galaxies and voids. There are both observational and theoretical…
New MGCAMB tests of gravity with CosmoMC and Cobaya
Zhuangfei Wang, Seyed Hamidreza Mirpoorian, Levon Pogosian +2
We present a new version of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB for cosmological tests of gravity. New features include a new cubic-spline parameterization allow…
On validity of the quasi-static approximation in scalar-tensor theories
Seyed Hamidreza Mirpoorian, Zhuangfei Wang, Levon Pogosian
The discovery of cosmic acceleration motivated extensive studies of dynamical dark energy and modified gravity models. Of particular interest are the scalar-tensor theories, with a…