activity
20112026
most citedBackground model systematics for the Fermi GeV excess

466 citations · 3.1k across the 85 of their papers we have counts for

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Showing 2021Show all

9 papers · 1 filter

astro-ph.CO2021

NAJADS: a self-contained framework for the direct determination of astrophysical J-factors

Anna Balaudo, Francesca Calore, Valentina De Romeri +1

Cosmological simulations play a pivotal role in understanding the properties of the dark matter (DM) distribution in both galactic and galaxy-cluster environments. The characteriza…

hep-ph2021★ 31 cited

511 keV line constraints on feebly interacting particles from supernovae

Francesca Calore, Pierluca Carenza, Maurizio Giannotti +4

Feebly interacting particles with masses with O(10-100) MeV can be copiously produced by core-collapse supernovae (SNe). In this paper we consider the case of MeV-ish sterile neutr…

astro-ph.GA2021

Determining the Dark Matter distribution in galaxies with Deep Learning

Martín Emilio de los Rios, Mihael Petač, Bryan Zaldivar +3

We present a novel method to infer the Dark Matter (DM) content and spatial distribution within galaxies, based on convolutional neural networks trained within state-of-the-art hyd…

astro-ph.HE2021★ 48 cited

3D template-based -LAT constraints on the diffuse supernova axion-like particle background

Francesca Calore, Pierluca Carenza, Christopher Eckner +7

Axion-like particles (ALPs) may be abundantly produced in core-collapse (CC) supernovae (SNe), hence the cumulative signal from all past SN events can create a diffuse flux peaked…

astro-ph.HE2021★ 27 cited

Reticulum II: Particle Dark Matter and Primordial Black Holes Limits

Thomas Siegert, Celine Boehm, Francesca Calore +4

Reticulum II (Ret II) is a satellite galaxy of the Milky Way and presents a prime target to investigate the nature of dark matter (DM) because of its high mass-to-light ratio. We e…

astro-ph.HE2021

Measuring the smearing of the Galactic 511 keV signal: positron propagation or supernova kicks?

Thomas Siegert, Roland M. Crocker, Oscar Macias +4

We use 15 years of -ray data from INTEGRAL/SPI in a refined investigation of the morphology of the Galactic bulge positron annihilation signal. Our spatial analysis confirms tha…

hep-ph2021★ 37 cited

Supernova bounds on axion-like particles coupled with nucleons and electrons

Francesca Calore, Pierluca Carenza, Maurizio Giannotti +3

We investigate the potential of type II supernovae (SNe) to constrain axion-like particles (ALPs) coupled simultaneously to nucleons and electrons. ALPs coupled to nucleons can be…

astro-ph.HE2021★ 11 cited

Gamma-ray image reconstruction of the Andromeda galaxy

Celine Armand, Francesca Calore

We analyze about 12 years of Fermi-LAT data in the direction of the Andromeda galaxy (M31). We robustly characterize its spectral and morphological properties against systematic un…

astro-ph.HE2021★ 38 cited

Dissecting the inner Galaxy with -ray pixel count statistics

Francesca Calore, Fiorenza Donato, Silvia Manconi

We combine adaptive template fitting and pixel count statistics in order to assess the nature of the Galactic center excess in Fermi-LAT data. We reconstruct the flux distribution…