Identifying spin properties of evaporating black holes through asymmetric neutrino and photon emission

YF Perez-Gonzalez - Physical Review D, 2023 - APS
Kerr black holes radiate neutrinos in an asymmetric pattern, preferentially in the lower
hemisphere relative to the black hole's rotation axis, while antineutrinos are predominantly …

Galactic center gamma-ray excess from dark matter annihilation: is there a black hole spike?

BD Fields, SL Shapiro, J Shelton - Physical review letters, 2014 - APS
If the supermassive black hole Sgr A* at the center of the Milky Way grew adiabatically from
an initial seed embedded in a Navarro-Frenk-White dark matter (DM) halo, then the DM …

PANGU: a high resolution gamma-ray space telescope

X Wu, M Su, A Bravar, J Chang, Y Fan… - … 2014: Ultraviolet to …, 2014 - spiedigitallibrary.org
We describe the instrument concept of a high angular resolution telescope dedicated to the
sub-GeV (from≥ 10 MeV to≥ 1 GeV) gamma-ray photon detection. This mission, named …

The AGILE gamma-ray observatory: software and pipelines: software management approach and lessons learned for the next generation of high-energy observatories

A Bulgarelli - Experimental Astronomy, 2019 - Springer
In this paper is described the approach used to develop the software system of the AGILE γ-
ray Observatory, from the definition phase to construction, verification and calibration …

γ-Ray polarimetry with conversions to e+ e− pairs: polarization asymmetry and the way to measure it

P Gros, D Bernard - Astroparticle Physics, 2017 - Elsevier
We revisit the measurement of the polarization fraction, P, and of the polarization angle of
partially linearly-polarized gamma rays using their conversion to e+ e− pairs in the field of a …

γ-ray telescopes using conversions to e+ e− pairs: event generators, angular resolution and polarimetry

P Gros, D Bernard - Astroparticle Physics, 2017 - Elsevier
We benchmark various available event generators in Geant4 and EGS5 in the light of
ongoing projects for high angular-resolution pair-conversion telescopes at low energy. We …

HARPO: a TPC as a gamma-ray telescope and polarimeter

D Bernard, P Bruel, M Frotin… - … 2014: Ultraviolet to …, 2014 - spiedigitallibrary.org
A gas Time Projection Chamber can be used for gamma-ray astronomy with excellent
angular-precision and sensitivity to faint sources, and for polarimetry, through the …

On the angular resolution of the AGILE gamma-ray imaging detector

S Sabatini, I Donnarumma, M Tavani… - The Astrophysical …, 2015 - iopscience.iop.org
We present a study of the angular resolution of the AGILE gamma-ray imaging detector
(GRID) that has been operational in space since 2007 April. The AGILE instrument is made …

Search for dark matter with IACTs and the Cherenkov Telescope Array

A Morselli, CTA Consortium - Journal of Physics: Conference …, 2023 - iopscience.iop.org
In the last decades an incredible amount of evidence for the existence of dark matter (DM)
has been accumulating. At the same time, many efforts have been undertaken to try to …

Charged particle tracking without magnetic field: optimal measurement of track momentum by a Bayesian analysis of the multiple measurements of deflections due to …

M Frosini, D Bernard - Nuclear Instruments and Methods in Physics …, 2017 - Elsevier
We revisit the precision of the measurement of track parameters (position, angle) with
optimal methods in the presence of detector resolution, multiple scattering and zero …