135 citations · 446 across the 47 of their papers we have counts for
21 papers · 1 filter
Dark matter searches in dwarf spheroidal galaxies with the Cherenkov Telescope Array
Francesco Gabriele Saturni, Michele Doro, Aldo Morselli +1
Dark matter (DM) is one of the major components in the Universe. However, at present its existence is still only inferred through indirect astronomical observations. DM particles c…
Prospects for -ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array
The Cherenkov Telescope Array Consortium, :, K. Abe +564
Galaxy clusters are expected to be dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly…
A radio-frequency search for WIMPs in RXC J0225.1-2928
Michael Sarkis, Geoff Beck, Natasha Lavis
Recent studies focusing on the use of radio data in indirect dark matter detection have led to a set of highly competitive limits on the WIMP annihilation cross-section, especially…
Constraints on dark matter annihilation from the FAST observation of the Coma Berenices dwarf galaxy
Wen-Qing Guo, Yichao Li, Xiaoyuan Huang +4
The Galactic center -ray excess, detected by the Fermi-LAT, is a very attractive tentative signal from dark matter annihilation. Searching for associated synchrotron emissions c…
Potential of the MeerKAT telescope to detect the stimulated decay of axion-like particles
Ahmed Ayad, Geoff Beck
A prominent aspect of the hunt for cold dark matter is looking for light scalar candidates such as axion-like particles (ALPs). The coupling between ALPs and photons allows for the…
Probing Dark Matter and Fundamental Physics with the Cherenkov Telescope Array
F. Iocco, M. Meyer, M. Doro +71
Astrophysical observations provide strong evidence that more than 80% of all matter in the Universe is in the form of dark matter (DM). Two leading candidates of particles beyond t…
Connecting multi-lepton anomalies at the LHC and in Astrophysics with MeerKAT/SKA
Geoff Beck, Ralekete Temo, Elias Malwa +2
Multi-lepton anomalies at the Large Hadron Collider (LHC) are reasonably well described by a two Higgs doublet model with an additional singlet scalar. Here, we demonstrate that us…
Axion-like particle searches with MeerKAT and SKA
Ahmed Ayad, Geoff Beck
In the past few years, the search for axion-like particles (ALPs) has grown significantly due to their potential to account for the total abundance of the cold dark matter (CDM) in…
Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation
The Cherenkov Telescope Array Consortium, :, H. Abdalla +496
The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for -ray astronomy, provides unique capabilities to address significant open questions in astrop…
Gamma Rays from UltraCompact Minihaloes: Effects on the Earth's Atmosphere and Links to Mass Extinction Events
M. Sarkis, G. Beck, B. C. Thomas
Recent studies of the effects on the Earth's atmosphere by astrophysical sources, such as nearby gamma-ray bursts or supernovae, have shown that these events could lead to severe c…
Radio-Frequency Searches for Dark Matter in Dwarf Galaxies
Geoff Beck
Dwarf spheroidal galaxies have long been discussed as optimal targets for indirect dark matter searches. However, the majority of such studies have been conducted with gamma-ray in…
Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre
The Cherenkov Telescope Array Consortium, :, A. Acharyya +449
We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray sig…
Probing dark matter via neutrino-gamma-ray correlations
Geoff Beck
The nature of dark matter is one of the most pressing questions in modern cosmology. Much work has been focussed in the past upon probing potential particle dark matter via gamma-r…
Multi-messenger hunts for heavy WIMPs
Geoff Beck
Heavy neutrinos have a long history of consideration in the literature, in particular related to their role as solutions to the problems of neutrino mass, baryon asymmetry, and pos…
Hunting dark matter in galaxy clusters with non-thermal electrons
Geoff Beck
The electron population inferred to be responsible for the mini-halo within the Ophiuchus galaxy cluster is a steep power-law in energy with a slope of . This is substantially…
Phenomenology of axion-like particles coupling with photons in the jets of active galactic nuclei
Ahmed Ayad, Geoff Beck
Axions or more generally axion-like particles (ALPs) are pseudo-scalar particles predicted by many extensions of the Standard Model of particle physics (SM) and considered as highl…
Probing a cosmic axion-like particle background within the jets of active galactic nuclei
Ahmed Ayad, Geoff Beck
Axions or more generally axion-like particles (ALPs) are pseudo-scalar particles predicted by many extensions of the Standard Model of particle physics (SM) and considered as viabl…
An excess of excesses examined via dark matter radio emissions from galaxies
Geoff Beck
Cosmic-ray and gamma-ray observations have yielded several notable excesses that often lend themselves to explanation by various dark matter annihilation/decay models. In particula…
Making light of gravitational-waves
Justine Tarrant, Geoff Beck, Sergio Colafrancesco
Mixing between photons and low-mass bosons is well considered in the literature. The particular case of interest here is with hypothetical gravitons, as we are concerned with the d…
Dark matter gets DAMPE
Geoff Beck, Sergio Colafrancesco
The DArk Matter Particle Explorer (DAMPE) recently reported an excess of electrons/positrons above expected background fluxes even when a double power-law background spectrum is as…
Probing the nature of Dark Matter with the SKA
Sergio Colafrancesco, Marco Regis, Paolo Marchegiani +5
Dark Matter (DM) is a fundamental ingredient of our Universe and of structure formation, and yet its nature is elusive to astrophysical probes. Information on the nature and physic…