466 citations · 3.1k across the 85 of their papers we have counts for
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-Ray Lines -- Signatures of Nucleosynthesis, Cosmic Rays, Positron Annihilation, and Fundamental Physics
Thomas Siegert, Francesca Calore, Pierre Jean +6
The nuclear -ray lines in the MeV range of the electromagnetic spectrum hold a vast variety of astrophysical, particle-physical, and fundamental physical information that is oth…
Search for Axion-Like Particles from Nearby Pre-Supernova Stars
Saurabh Mittal, Thomas Siegert, Francesca Calore +7
Axion-like particles (ALPs) are hypothetical pseudoscalar bosons that arise in many extensions of the Standard Model and are well-motivated dark matter candidates. Nearby massive s…
Multiwavelength identification of millisecond pulsar candidates in the Galactic bulge
J. Berteaud, F. Calore, M. Clavel +4
The existence of a population of millisecond pulsars in the Galactic bulge is supported, along with other evidence, by the Fermi GeV excess, an anomalous γ-ray emission detected al…
Lecture Notes: WISPs in gamma-ray astrophysics
Francesca Calore, Christopher Eckner
These lecture notes provide an overview of high-energy astrophysical processes involving axions, axion-like particles (ALPs), and other weakly interacting slim particles (WISPs) fo…
A robust neural determination of the source-count distribution of the Fermi-LAT sky at high latitudes
Christopher Eckner, Noemi Anau Montel, Florian List +2
Over the past 16 years, the Fermi Large Area Telescope (LAT) has significantly advanced our view of the GeV gamma-ray sky, yet several key questions remain - such as the compositio…
Discovery of 15 new pulsars at high Galactic Latitudes with FAST
Xin Xu, Shi Dai, Qijun Zhi +9
We present the discovery and timing results of 15 pulsars discovered in a high Galactic latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope (FAST). T…
Detecting dark matter sub-halos in the Galactic plane with the Cherenkov Telescope Array Observatory
Christopher Eckner, Veronika Vodeb, Tejas Satheesh +4
Numerous observations confirm the existence of dark matter (DM) at astrophysical and cosmological scales. Theory and simulations of galaxy formation predict that DM should cluster…
No evidence for gamma-ray emission from the Sagittarius dwarf spheroidal galaxy
Christopher Eckner, Silvia Manconi, Francesca Calore
More than a decade ago, the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope unveiled the existence of two gigantic gamma-ray lobes known as the Fermi bubbles. While…
Quiescent black hole X-ray binaries as multi-messenger sources
Dimitrios Kantzas, Francesca Calore
The origin of Galactic cosmic rays (CRs) is unknown even though they have traditionally been connected to supernovae based on energetic arguments. In the past decades, Galactic bla…
An Image-Based Search for Pulsar Candidates in the MeerKAT Bulge Survey
Dale A. Frail, Emil Polisensky, Scott D. Hyman +13
We report on the results of an image-based search for pulsar candidates toward the Galactic bulge. We used mosaic images from the MeerKAT radio telescope, that were taken as part o…
Simulation-based inference of radio millisecond pulsars in globular clusters
Joanna Berteaud, Christopher Eckner, Francesca Calore +2
Millisecond pulsars (MSPs) are abundant in globular clusters (GCs), which offer favorable environments for their creation. While the advent of recent, powerful facilities led to a…
A targeted radio pulsar survey of redback candidates with MeerKAT
T. Thongmeearkom, C. J. Clark, R. P. Breton +18
Redbacks are millisecond pulsar binaries with low mass, irradiated companions. These systems have a rich phenomenology that can be used to probe binary evolution models, pulsar win…
The Galactic center excess at the highest energies: morphology and photon-count statistics
Silvia Manconi, Francesca Calore, Fiorenza Donato
The nature of the GeV gamma-ray Galactic center excess (GCE) in the data of Fermi-Large Area Telescope (LAT) is still to be unveiled. We present a new analysis of the inner Galaxy…
Sub-GeV Dark Matter Annihilation: Limits from Milky Way observations with INTEGRAL
Thomas Siegert, Francesca Calore, Pasquale Dario Serpico
From 16 years of INTEGRAL/SPI -ray observations, we derive bounds on annihilating light dark matter particles in the halo of the Milky Way up to masses of about 300 MeV. We test…
Probing the Dark Matter Capture Rate in a Local Population of Brown Dwarfs with IceCube Gen 2
Pooja Bhattacharjee, Francesca Calore
This study explores the potential for dark matter annihilation within brown dwarfs, investigating an unconventional mechanism for neutrino production. Motivated by the efficient ac…
Deepening gamma-ray point-source catalogues with sub-threshold information
Aurelio Amerio, Francesca Calore, Pasquale Dario Serpico +1
We propose a novel statistical method to extend Fermi-LAT catalogues of high-latitude -ray sources below their nominal threshold. To do so, we rely on a recent determination of…
Uncovering axion-like particles in supernova gamma-ray spectra
Francesca Calore, Pierluca Carenza, Christopher Eckner +4
A future Galactic Supernova (SN) explosion can lead to a gamma-ray signal induced by ultralight Axion-Like Particles (ALPs) thermally produced in the SN core and converted into hig…
Investigating the gamma-ray burst from decaying MeV-scale axion-like particles produced in supernova explosions
Eike Müller, Francesca Calore, Pierluca Carenza +2
We investigate the characteristics of the gamma-ray signal following the decay of MeV-scale Axion-Like Particles (ALPs) coupled to photons which are produced in a Supernova (SN) ex…
Detecting and characterizing pulsar haloes with the Cherenkov Telescope Array
Christopher Eckner, Veronika Vodeb, Pierrick Martin +2
The recently identified source class of pulsar haloes may be numerous and bright enough in the TeV range to constitute a large fraction of the sources that will be observed with th…
The TRAPUM L-band survey for pulsars in Fermi-LAT gamma-ray sources
C. J. Clark, R. P. Breton, E. D. Barr +35
More than 100 millisecond pulsars (MSPs) have been discovered in radio observations of gamma-ray sources detected by the Fermi Large Area Telescope (LAT), but hundreds of pulsar-li…
Investigating the effect of Milky Way dwarf spheroidal galaxies extension on dark matter searches with Fermi-LAT data
Mattia Di Mauro, Martin Stref, Francesca Calore
Satellite galaxies of the Milky Way with high mass-to-light ratios and little baryon content, i.e. dwarf spheroidal galaxies (dSphs), are among the most promising targets to detect…
Gamma-ray flux limits from brown dwarfs: Implications for dark matter annihilating into long-lived mediators
Pooja Bhattacharjee, Francesca Calore, Pasquale Dario Serpico
Brown dwarfs (BDs) are celestial objects representing the link between the least massive main-sequence stars and giant gas planets. In the first part of this article, we perform a…
How do the dynamics of the Milky Way -- Large Magellanic Cloud system affect gamma-ray constraints on particle dark matter?
Christopher Eckner, Francesca Calore, Denis Erkal +2
Previous studies on astrophysical dark matter (DM) constraints have all assumed that the Milky Way's (MW) DM halo can be modelled in isolation. However, recent work suggests that t…
First constraints on axion-like particles from Galactic sub-PeV gamma rays
Christopher Eckner, Francesca Calore
Experimental refinements and technical innovations in the field of extensive air shower telescopes have enabled measurements of Galactic cosmic-ray interactions in the sub-PeV rang…