129 citations · 426 across the 37 of their papers we have counts for
24 papers · 1 filter
Constraining dark matter using 20-year INTEGRAL/IBIS observations I: Primordial black holes
Jordan Koechler, Pedro De la Torre Luque
Primordial black holes (PBHs) in the asteroid-mass window remain a viable dark matter candidate. In the lower part of this mass range, Hawking evaporation produces electrons and po…
Sgr A* as a Galactic PeVatron: Multimessenger Signatures of the Magnetic Penrose Process
Marina Cermeño, Pedro De la Torre Luque, Cristina Fernández-Suárez +5
The magnetic Penrose process (MPP) is one of the most efficient mechanisms for extracting rotational energy from a magnetized Kerr black hole (BH), enabling charged particles to re…
Decisive evidence for a global cosmic-ray feature in gamma-ray data
Fernando Valenciano, Pedro De la Torre Luque, Daniele Gaggero +1
We analyze 17 years of Fermi-LAT data to study the diffuse -ray emission along the Galactic plane and its connection to cosmic-ray (CR) propagation. Accounting for correlated in…
Exploring the nature of Galactic unassociated sources detected by the Fermi-LAT
F. Acero, A. Acharyya, A. Adelfio +120
We investigate the nature of the unassociated sources detected by the Fermi-LAT close (|b|<10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The…
Strong Constraints on Millisecond Pulsar Injection Spectra from Fermi-LAT Observations of the Galactic Center
Jordan Koechler, Pedro De la Torre Luque, Mattia Di Mauro
Millisecond pulsars (MSPs) are a leading explanation of the Galactic Center excess (GCE) observed in Fermi-LAT data. We constrain this scenario by jointly modeling prompt and inver…
The potential of diffuse Galactic Ridge neutrino measurements to constrain dark matter
Jaume Zuriaga-Puig, Pedro de la Torre Luque, Viviana Gammaldi
We use the latest ANTARES Galactic Ridge neutrino measurements to investigate their implications for indirect dark matter (DM) searches. We consider both annihilating and decaying…
Do the sources of the 511 keV excess explain the anomalous CMZ ionization?
Pedro De la Torre Luque, Francesca Calore
The anomalous rate of molecules ionization observed at the Central Molecular zone (CMZ) challenges known mechanisms of ionization observed in molecular clouds across the Galaxy, du…
The cosmic-ray sea explains the Galactic -ray and diffuse emissions from GeV to PeV
Pedro De La Torre Luque, Daniele Gaggero, Dario Grasso +2
The LHAASO collaboration has recently released the spectrum and the angular distribution of the gamma-ray Galactic diffuse emission from 1 TeV to 1 PeV measured with the Kilometer-…
Refining Galactic primordial black hole evaporation constraints
Pedro De la Torre Luque, Jordan Koechler, Shyam Balaji
We revisit the role of primordial black holes (PBHs) as potential dark matter (DM) candidates, particularly focusing on light asteroid-mass PBHs. These PBHs are expected to emit pa…
Impact of inhomogeneous diffusion on secondary cosmic ray and antiproton local spectra
Álvaro Tovar-Pardo, Pedro De La Torre Luque, Miguel Ángel Sánchez-Conde
Recent -ray and neutrino observations seem to favor the consideration of non-uniform diffusion of cosmic rays (CRs) throughout the Galaxy. In this study, we investigate the cons…
Cosmic-Ray Propagation Models Elucidate the Prospects for Antinuclei Detection
Pedro De La Torre Luque, Martin Wolfgang Winkler, Tim Linden
Tentative observations of cosmic-ray antihelium by the AMS-02 collaboration have re-energized the quest to use antinuclei to search for physics beyond the standard model. However,…
The cosmic-ray positron excess and its imprint in the Galactic gamma-ray sky
Manuel Rocamora, Yago Ascasibar, Miguel A. Sánchez-Conde +2
We study the origin of the positron excess observed in the local cosmic-ray spectrum at high energies, and relate it to the cosmic rays and gamma-ray emission across the entire Gal…
Antiproton Bounds on Dark Matter Annihilation from a Combined Analysis Using the DRAGON2 Code
Pedro De la Torre Luque, Martin Wolfgang Winkler, Tim Linden
Early studies of the AMS-02 antiproton ratio identified a possible excess over the expected astrophysical background that could be fit by the annihilation of a weakly interacting m…
Possible contribution of X-ray binary jets to the Galactic cosmic ray and neutrino flux
Dimitrios Kantzas, Sera Markoff, Alex J. Cooper +3
For over a century, the identification of high-energy cosmic ray (CR) sources remains an open question. For Galactic CRs with energy up to eV, supernova remnants (SNRs) h…
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 3
LAT collaboration, Marco Ajello, Luca Baldini +100
An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-Large Area Telescope is presented. This version (4LAC-DR3) derives from the thir…
Detecting neutrino-boosted axion dark matter in the MeV gap
Pierluca Carenza, Pedro De la Torre Luque
The elusive nature of Dark Matter (DM) remains a mystery far from being solved. A vast effort is dedicated to search for signatures of feeble DM interactions with Standard Model pa…
Anisotropic diffusion cannot explain TeV halo observations
Pedro De La Torre Luque, Ottavio Fornieri, Tim Linden
TeV halos are regions of enhanced photon emissivity surrounding pulsars. While multiple sources have been discovered, a self-consistent explanation of their radial profile and sphe…
Galactic diffuse gamma rays meet the PeV frontier
Pedro De la Torre Luque, Daniele Gaggero, Dario Grasso +4
The Tibet AS and LHAASO collaborations recently reported the observation of a -ray diffuse emission with energy up to the PeV from the Galactic plane. We discuss the relevanc…
FLUKA cross sections for cosmic-ray interactions with the DRAGON2 code
Pedro de la Torre Luque, Mario Nicola Mazziotta, Alfredo Ferrari +3
Secondary particles produced in spallation reactions of cosmic rays with the interstellar gas provide valuable information that allow us to investigate the injection and transport…
Combined analyses of the antiproton production from cosmic-ray interactions and its possible dark matter origin
Pedro De La Torre Luque
Recent cosmic-ray (CR) studies have claimed the possibility of an excess on the antiproton flux over the predicted models at around GeV, which can be the signature of dark mat…
A diffusive origin for the cosmic-ray spectral hardening reveals signatures of a nearbysource in the leptons and protons data
Ottavio Fornieri, Daniele Gaggero, Daniel Guberman +2
In this work we aim at reproducing, simultaneously, the spectral feature at in the cosmic-ray proton spectrum, recently reported by the DAMPE Collaboratio…
Search for dark matter signatures in the gamma-ray emission towards the Sun with the Fermi Large Area Telescope
M. N. Mazziotta, F. Loparco, D. Serini +4
Dark matter particles from the Galactic halo can be gravitationally trapped in the solar core or in external orbits. The enhanced density of dark matter particles either in the sol…
A search for dark matter cosmic-ray electrons and positrons from the Sun with the Fermi Large Area Telescope
A. Cuoco, P. De La Torre Luque, F. Gargano +4
We use 7 years of electron and positron Fermi-LAT data to search for a possible excess in the direction of the Sun in the energy range from 42 GeV to 2 TeV. In the absence of a pos…
Bright gamma-ray flares observed in GRB131108A
Donggeun Tak, Z. Lucas Uhm, Bing Zhang
GRB 131108A is a bright long Gamma-Ray Burst (GRB) detected by the Large Area Telescope and the Gamma-ray Burst Monitor on board the Fermi Gamma-ray Space Telescope. Dedicated temp…