212 citations · 332 across the 12 of their papers we have counts for
12 papers
Reionization, UV Luminosity and 21cm Sensitivity to Primordial Magnetic Fields: Impact of Energy Losses
Gaétan Facchinetti, Alexander Korochkin, Laura Lopez-Honorez +1
Magnetic fields with field strengths between G and a few Nanogauss are expected to exist today in the intergalactic medium (IGM). Their origin is unknown, but may be of…
21 cm Cosmology Sensitivity to Small-Scale Structure: Warm vs Neutrino-Interacting Dark Matter
Virgile Dandoy, Christian Döring, Gaétan Facchinetti +2
The cm signal originating from Cosmic Dawn to the Epoch of Reionisation is highly sensitive to the processes governing star formation in the early universe as well as new phy…
Neural network emulation of reionization to constrain new physics with early- and late-time probes
Gaétan Facchinetti
The optical depth to reionization, a key parameter of the CDM model, can be computed within astrophysical frameworks for star formation by modeling the evolution of the intergal…
21cm signal sensitivity to dark matter decay
Gaétan Facchinetti, Laura Lopez-Honorez, Yuxiang Qin +1
The redshifted 21cm signal from the Cosmic Dawn is expected to provide unprecedented insights into early Universe astrophysics and cosmology. Here we explore how dark matter can he…
Minihalos as probes of the inflationary spectrum: accurate boost factor calculation and new CMB constraints
Guillermo Franco Abellán, Gaétan Facchinetti
Although the spectrum of primordial fluctuations has been accurately measured on scales above , only upper limits exist on smaller scales. In this study, we inve…
Relaxing CMB bounds on Primordial Black Holes: the role of ionization fronts
Gaétan Facchinetti, Matteo Lucca, Sébastien Clesse
The accretion of matter onto primordial black holes (PBHs) during the dark ages and the subsequent energy injection in the medium should have left imprints on the cosmic microwave…
Analytical insight into dark matter subhalo boost factors for Sommerfeld-enhanced - and -wave -ray signals
Gaétan Facchinetti, Martin Stref, Thomas Lacroix +4
As searches for thermal and self-annihilating dark matter (DM) intensify, it becomes crucial to include as many relevant physical processes and ingredients as possible to refine si…
Classification of gamma-ray targets for velocity-dependent and subhalo-boosted dark-matter annihilation
Thomas Lacroix, Gaétan Facchinetti, Judit Pérez-Romero +4
Gamma-ray observations have long been used to constrain the properties of dark matter (DM), with a strong focus on weakly interacting massive particles annihilating through velocit…
Tidal stripping of dark matter subhalos by baryons from analytical perspectives: disk shocking and encounters with stars
Gaétan Facchinetti, Martin Stref, Julien Lavalle
The cold dark matter (CDM) scenario predicts that galactic halos should host a huge amount of subhalos possibly lighter than planets, depending on the nature of dark matter. Predic…
Statistics for dark matter subhalo searches in gamma rays from a kinematically constrained population model: Fermi-LAT-like telescopes
Gaétan Facchinetti, Julien Lavalle, Martin Stref
Cold dark matter subhalos are expected to populate galaxies in numbers. If dark matter self-annihilates, these objects turn into prime targets for indirect searches, in particular…
Interaction of light with planar lattices of atoms: Reflection, transmission and cooperative magnetometry
G. Facchinetti, J. Ruostekoski
We study strong light-mediated resonant dipole-dipole interactions in two-dimensional planar lattices of cold atoms. We provide a detailed analysis for the description of the dipol…
Storing light with subradiant correlations in arrays of atoms
G. Facchinetti, S. D. Jenkins, J. Ruostekoski
We show how strong light-mediated resonant dipole-dipole interactions between atoms can be utilized in a control and storage of light. The method is based on a high-fidelity prepar…