11 citations · 20 across the 5 of their papers we have counts for
5 papers
Filament-Arm Node Systems (FANS): A new probe of the winding and chirality of the cosmic web
Pedro da Silveira Ferreira, Renyue Cen
We define Filament-Arm Node Systems (FANS), a new class of cosmic-web objects consisting of multiple filament arms connected to a common node, and use their geometry to construct a…
Where Galaxies Point: First Measurement of the Large-Scale Axial Intrinsic Alignment
Pedro da Silveira Ferreira, Rafael Oliveira Ramos, Paula S. Ferreira +5
We report evidence for large-scale axial intrinsic alignment (LAIA): a coherent axis shared by galaxies and cosmic-web filaments. Applying an orientation-field estimator to Dark En…
The CMB Cold Spot under the lens II: Lensing signatures in polarization and cosmic texture footprints
Pedro da Silveira Ferreira, Stephen Owusu
We forecast the detectability of the lensing footprint of a collapsing cosmic texture, a topological defect proposed as an explanation of the CMB Cold Spot. Our pipeline is a quadr…
Tomographic redshift dipole: Testing the cosmological principle
Pedro da Silveira Ferreira, Valerio Marra
The cosmological principle posits that the universe is statistically homogeneous and isotropic on large scales, implying all matter shares the same rest frame. This principle sugge…
The CMB cold spot under the lens: ruling out a supervoid interpretation
Stephen Owusu, Pedro da Silveira Ferreira, Alessio Notari +1
The Cosmic Microwave Background (CMB) anisotropies are thought to be statistically isotropic and Gaussian. However, several anomalies are observed, including the CMB Cold Spot, an…