108 citations · 774 across the 31 of their papers we have counts for
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astro-ph.CO2013★ 18 cited
Newton to Einstein - dust to dust
Michael Kopp, Cora Uhlemann, Thomas Haugg
We investigate the relation between the standard Newtonian equations for a pressureless fluid (dust) and the Einstein equations in a double expansion in small scales and small metr…
astro-ph.CO2013★ 73 cited
Spherical collapse and halo mass function in f(R) theories
Michael Kopp, Stephen A. Appleby, Ixandra Achitouv +1
We compute the critical density of collapse for spherically symmetric overdensities in a class of f(R) modified gravity models. For the first time we evolve the Einstein, scalar fi…