129 citations · 426 across the 37 of their papers we have counts for
40 papers
Constraining dark matter using 20-year INTEGRAL/IBIS observations II: Sub-GeV dark matter
Jordan Koechler, Pedro De la Torre Luque
We present new constraints on sub-GeV dark matter (DM) annihilation and decay using twenty years of diffuse hard X-ray observations from the INTEGRAL/IBIS telescope. By performing…
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…
Strong Constraints on Line Signals from Dark Matter Annihilation in a Nearby Subhalo
Asier Salces Pérez, Thong T. Q. Nguyen, Pedro De la Torre Luque +1
We present a dedicated search for monochromatic gamma-ray emission from a recently proposed nearby dark matter subhalo candidate. Using nearly 15 years of Fermi-LAT Pass 8 data, we…
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…
Galactic Center Neutrinos from Cosmic Ray-Dark Matter Interactions
Jorge Terol Calvo, Pedro de la Torre Luque, Mainak Mukhopadhyay +2
The IceCube and ANTARES collaborations have recently reported evidence for high-energy neutrinos associated with the Galactic plane and the Galactic Ridge, offering a new pathway t…
Galactic cold clouds constraints on sub-GeV DM and asteroid-mass PBHs
Asier Salces Pérez, Pedro de la Torre Luque
We show that the ionization of molecular and atomic clouds provides a novel probe of dark matter scenarios producing low-energy pairs through annihilation, decay, or Hawki…
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-…
INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, and Vectors
Thong T. Q. Nguyen, Pedro De la Torre Luque, Isabelle John +3
The decay of light bosonic dark matter particles can produce a bright electron/positron () flux that can be strongly constrained by local Voyager observations of the direct…
Dark Matter in X-rays: Revised XMM-Newton Limits and New Constraints from eROSITA
Shyam Balaji, Damon Cleaver, Pedro De la Torre Luque +1
We investigate two classes of dark matter (DM) candidates, sub-GeV particles and primordial black holes (PBHs), that can inject low-energy electrons and positrons into the Milky Wa…
(H)ALPing the 511 keV line: A thermal DM interpretation of the 511 keV emission
Mohammad Aghaie, Pedro De la Torre Luque, Alessandro Dondarini +3
We propose a novel framework where MeV-scale Dirac Dark Matter annihilates into axion-like particles, providing a natural explanation for the 511 keV gamma-ray line observed in the…
Multimessenger constraints for electrophilic feebly interacting particles from supernovae
Pedro De la Torre Luque, Shyam Balaji, Pierluca Carenza
Several extensions of the Standard Model predict the existence of sub-GeV particles that can be copiously produced in the cores of supernovae. A broad family of these particles are…
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…
rays from in-flight positron annihilation as a probe of new physics
Pedro De la Torre Luque, Shyam Balaji, Pierluca Carenza +1
The ray emission originating from in-flight annihilation (IA) of positrons is a powerful observable for constraining high-energy positron production from exotic sources. By com…
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…
New 511 keV line data provides strongest sub-GeV dark matter constraints
Pedro De la Torre Luque, Shyam Balaji, Joseph Silk
We explore the ~keV emission associated to sub-GeV dark matter (DM) particles that can produce electron-positron pairs and form positronium after thermalizing. We use …
Importance of cosmic ray propagation on sub-GeV dark matter constraints
Pedro De la Torre Luque, Shyam Balaji, Jordan Koechler
We study sub-GeV dark matter (DM) particles that may annihilate or decay into SM particles producing an exotic injection component in the Milky Way that leaves an imprint in both p…