82 citations · 746 across the 52 of their papers we have counts for
5 papers · 2 filters
Transient Weak-Lensing by Cosmological Dark Matter Microhaloes
Sohrab Rahvar, Shant Baghram, Niayesh Afshordi
We study the time variation of the apparent flux of cosmological point sources due to the transient weak lensing by dark matter microhaloes. Assuming a transverse motion of microha…
Simultaneous effect of Modified Gravity and Primordial Non-Gaussianity in Large Scale Structure Observations
Nareg Mirzatuny, Shahram Khosravi, Shant Baghram +1
In this work we study the simultaneous effect of primordial non-Gaussianity and the modification of the gravity in framework on large scale structure observations. We show t…
Asymmetric Sky from the Long Mode Modulations
Ali Akbar Abolhasani, Shant Baghram, Hassan Firouzjahi +1
The observed dipole asymmetry in Cosmic Microwave Background radiation may have originated from the modulations of super-horizon long wavelength modes. In this work we unveil diffe…
Hemispherical Asymmetry and Local non-Gaussianity: a Consistency Condition
Mohammad Hossein Namjoo, Shant Baghram, Hassan Firouzjahi
In this paper we provide a consistency relation between the amplitude of the hemispherical bipolar asymmetry, , and the amplitude of the primordial non-Gaussianity in the squeez…
Large Scale Anisotropic Bias from Primordial non-Gaussianity
Shant Baghram, Mohammad Hossein Namjoo, Hassan Firouzjahi
In this work we study the large scale structure bias in models of anisotropic inflation. We use the Peak Background Splitting method in Excursion Set Theory to find the scale-depen…