Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Fornengo, Nicolao"'
Autor:
Arina, Chiara, Di Mauro, Mattia, Fornengo, Nicolao, Heisig, Jan, Jueid, Adil, de Austri, Roberto Ruiz
The energy spectra of particles produced from dark matter (DM) annihilation or decay are one of the fundamental ingredients to calculate the predicted fluxes of cosmic rays and radiation searched for in indirect DM detection. We revisit the calculati
Externí odkaz:
http://arxiv.org/abs/2312.01153
The singlet scalar Higgs portal model provides one of the simplest explanations of dark matter in our Universe. Its Higgs resonant region, $m_\text{DM}\approx m_h/2$, has gained particular attention, being able to reconcile the tension between the re
Externí odkaz:
http://arxiv.org/abs/2305.11937
Clusters of galaxies are the largest gravitationally-bound systems in the Universe. Their dynamics are dominated by dark matter (DM), which makes them among the best targets for indirect DM searches. We analyze 12 years of data collected by the Fermi
Externí odkaz:
http://arxiv.org/abs/2303.16930
Sub-GeV dark matter particles can annihilate or decay producing e^\pm pairs which upscatter the low-energy photon fields in the Galaxy and generate an X-ray emission (via the Inverse Compton effect). Using X-ray data from Xmm-Newton, Integral, NuStar
Externí odkaz:
http://arxiv.org/abs/2303.08854
Publikováno v:
JCAP09(2023)029
We reconstruct the extra-galactic gamma-ray source-count distribution, or $dN/dS$, of resolved and unresolved sources by adopting machine learning techniques. Specifically, we train a convolutional neural network on synthetic 2-dimensional sky-maps,
Externí odkaz:
http://arxiv.org/abs/2302.01947
We consider the cosmology and phenomenology of a dark photon portal to a simple dark sector consisting of a single, light, fermionic dark matter particle species with mass in the MeV range. We entertain three possible kinetic mixing structures of a n
Externí odkaz:
http://arxiv.org/abs/2211.13825
Publikováno v:
Astrophys.J. 933 (2022) 2, 221
We analyze the angular power spectrum (APS) of the unresolved gamma-ray background (UGRB) emission and combine it with the measured properties of the resolved gamma-ray sources of the Fermi-LAT 4FGL catalog. Our goals are to dissect the composition o
Externí odkaz:
http://arxiv.org/abs/2201.02634
Autor:
Vernstrom, Tessa, Heald, George, Vazza, Franco, Galvin, Tim, West, Jennifer, Locatelli, Nicola, Fornengo, Nicolao, Pinetti, Elena
Diffuse filaments connect galaxy clusters to form the cosmic web. Detecting these filaments could yield information on the magnetic field strength, cosmic ray population and temperature of intercluster gas, yet, the faint and large-scale nature of th
Externí odkaz:
http://arxiv.org/abs/2101.09331
Publikováno v:
JCAP05(2021)046
The extragalactic background light is comprised of the cumulative radiation from all galaxies across the history of the universe. The angular power spectrum of the anisotropies of such a background at near-infrared (IR) frequencies lacks of a complet
Externí odkaz:
http://arxiv.org/abs/2012.09179
Publikováno v:
Phys. Rev. D 103, 063022 (2021)
Light Dark Matter (DM), defined here as having a mass between 1 MeV and about 1 GeV, is an interesting possibility both theoretically and phenomenologically, at one of the frontiers of current progress in the field of DM searches. Its indirect detect
Externí odkaz:
http://arxiv.org/abs/2007.11493