G. Zagatti

ORCID: 0009-0003-9595-1158
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About
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Research Areas
  • Relativity and Gravitational Theory
  • Cosmology and Gravitation Theories
  • Galaxies: Formation, Evolution, Phenomena
  • Geophysics and Gravity Measurements
  • Spectroscopy and Laser Applications
  • Remote Sensing in Agriculture
  • Dark Matter and Cosmic Phenomena

Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2024

University of Ferrara
2024

Abstract Cosmic birefringence is the in-vacuo, frequency independent rotation of polarization plane linearly polarized radiation, induced by a parity-violating term in electromagnetic Lagrangian. We implement harmonic estimator for field that only relies on CMB E to B mode cross-correlation, thus suppressing effect cosmic variance from temperature field. derive constraints Planck public releases 3 and 4, revealing power spectrum consistent with zero at about 2 σ up multipole L = 1500....

10.1088/1475-7516/2024/05/034 article EN cc-by Journal of Cosmology and Astroparticle Physics 2024-05-01

The Cosmic Infrared Background (CIB), traced by the emission from dusty star-forming galaxies, provides a crucial window into phases of star formation throughout cosmic history. These although challenging to detect individually at high redshifts due their faintness, cumulatively contribute CIB which then becomes powerful probe galaxy formation, evolution and clustering. Here, we introduce physically-motivated model for spanning wide range frequency angular resolution, employing halo approach...

10.1051/0004-6361/202451424 article EN cc-by Astronomy and Astrophysics 2024-11-07

Cosmic birefringence is the in-vacuo, frequency independent rotation of polarization plane linearly polarized radiation, induced by a parity-violating term in electromagnetic Lagrangian. We implement an harmonic estimator for field that only relies on CMB E to B mode cross-correlation, thus suppressing effect cosmic variance from temperature field. derive constraints Planck public releases 3 and 4, revealing power spectrum consistent with zero at about $2\sigma$ up multipole $L=1500$....

10.48550/arxiv.2401.11973 preprint EN other-oa arXiv (Cornell University) 2024-01-01
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