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Spectral modulation of non-Galactic plane Gamma-ray pulsars due to photon-ALPs mixing in Galactic magnetic field
Jhilik Majumdar, Francesca Calore, Dieter Horns
In many approaches to describe physics beyond the standard model, light Nambu-Goldstone bosons (named axion-like particles or ALPS for their similarity with the axion) are predicte…
The Fermi-LAT GeV Excess Traces Stellar Mass in the Galactic Bulge
Richard Bartels, Emma Storm, Christoph Weniger +1
An anomalous emission component at energies of a few GeV and located towards the inner Galaxy is present in the Fermi-LAT data. It is known as the Fermi-LAT GeV excess. Using almos…
Modulations in Spectra of Galactic Gamma-ray sources as a result of photon-ALPs mixing
Jhilik Majumdar, Francesca Calore, Dieter Horns
Axion like particles (ALPs) are fundamental pseudo scalar particles with properties similar to Axions which are a well-known extension of the standard model to solve the strong CP…
CMB bounds on disk-accreting massive Primordial Black Holes
Vivian Poulin, Pasquale D. Serpico, Francesca Calore +2
Stellar-mass Primordial Black Holes (PBH) have been recently reconsidered as a Dark Matter (DM) candidate, after the aLIGO discovery of several binary BH mergers with masses of ten…
SkyFACT: High-dimensional modeling of gamma-ray emission with adaptive templates and penalized likelihoods
Emma Storm, Christoph Weniger, Francesca Calore
We present SkyFACT (Sky Factorization with Adaptive Constrained Templates), a new approach for studying, modeling and decomposing diffuse gamma-ray emission. Like most previous ana…
Electroweak and Higgs Boson Internal Bremsstrahlung: General considerations for Majorana dark matter annihilation and application to MSSM neutralinos
Torsten Bringmann, Francesca Calore, Ahmad Galea +1
It is well known that the annihilation of Majorana dark matter into fermions is helicity suppressed. Here, we point out that the underlying mechanism is a subtle combination of two…