82 citations · 746 across the 52 of their papers we have counts for
5 papers · 1 filter
Peculiar velocity measurement in a clumpy universe
Farhang Habibi, Shant Baghram, Saeed Tavasoli
In this work we address the issue of peculiar velocity measurement in a perturbed Friedmann universe using the deviations from measured luminosity distances of standard candles fro…
Unraveling the nature of Gravity through our clumpy Universe
Shant Baghram, Saeed Tavasoli, Farhang Habibi +2
We propose a new probe to test the nature of gravity at various redshifts through large-scale cosmological observations. We use our void catalog, extracted from the Sloan Digital S…
Expected dipole asymmetry in CMB polarization
M. H. Namjoo, A. A. Abolhasani, H. Assadullahi +3
We explore the hemispherical asymmetry predicted in cosmic microwave background polarization when there is an asymmetry in temperature anisotropies due to primordial perturbations.…
Fingerprints of Anomalous Primordial Universe on the Abundance of Large Scale Structures
Shant Baghram, Ali Akbar Abolhasani, Hassan Firouzjahi +1
We study the predictions of anomalous inflationary models on the abundance of structures in large scale structure observations. The anomalous features encoded in primordial curvatu…
CMB Hemispherical Asymmetry: Long Mode Modulation and non-Gaussianity
Mohammad Hossein Namjoo, Ali Akbar Abolhasani, Shant Baghram +1
The observed hemispherical asymmetry in CMB map can be explained by modulation from a long wavelength super horizon mode which non-linearly couples to the CMB modes. We address the…