5 papers
Constraining cosmological parameters from very-high-energy -ray attenuation in blazar spectra: Bayesian inference and systematic uncertainties
Patryk Liniewicz, Emmanuel Moulin
Very-high-energy rays from active galactic nuclei are attenuated through pair production on the extragalactic background light (EBL), providing a probe of cosmic expansion. We…
Assessing the sensitivity to Axion-Like-Particle Dark Matter with very-high-energy gamma-ray observations of selected AGN and galaxy cluster pairs
Cervane Grimaud, Denys Malyshev, Emmanuel Moulin
Axion-Like-Particles (ALPs) are pseudo-scalar particles actively searched as light dark matter candidates. ALPs can couple to photons which give rise to the possibility of oscillat…
Gamma-ray production in the cosmic-ray -- dark matter scattering as a probe of the axion-like particle -- proton interaction
Victor P. Goncalves, Emmanuel Moulin, Igor Reis +1
The production of very-high-energy (VHE, GeV) gamma rays resulting from the scattering of high-energy cosmic-ray protons off axion-like particles (ALPs) populati…
Search for dark matter around intermediate mass black holes with the H.E.S.S. experiment
Jann Aschersleben, Dieter Horns, Emmanuel Moulin +1
Intermediate mass black holes (IMBHs), with masses ranging from a hundred and a million solar masses, are hypothesised to be surrounded by dense regions of dark matter known as dar…
Nonparametric signal separation in very-high-energy gamma ray observations with probabilistic neural networks
Marion Ullmo, Emmanuel Moulin
An intriguing challenge in observational astronomy is the separation signals in areas where multiple signals intersect. A typical instance of this in very-high-energy (VHE, E$\gtrs…