The gamma-ray window to intergalactic magnetism
One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through
gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or …
gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or …
Progress in unveiling extreme particle acceleration in persistent astrophysical jets
J Biteau, E Prandini, L Costamante, M Lemoine… - Nature …, 2020 - nature.com
The most powerful persistent accelerators in the Universe are jetted active galaxies. Blazars,
galaxies whose jets are directed towards Earth, dominate the extragalactic γ-ray sky. Still …
galaxies whose jets are directed towards Earth, dominate the extragalactic γ-ray sky. Still …
Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation
The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ-
ray astronomy, provides unique capabilities to address significant open questions in …
ray astronomy, provides unique capabilities to address significant open questions in …
An observational determination of the evolving extragalactic background light from the multiwavelength HST/CANDELS survey in the Fermi and CTA era
A Saldana-Lopez, A Domínguez… - Monthly Notices of …, 2021 - academic.oup.com
The diffuse extragalactic background light (EBL) is formed by ultraviolet (UV), optical, and
infrared (IR) photons mainly produced by star formation processes over the history of the …
infrared (IR) photons mainly produced by star formation processes over the history of the …
Probing the blue axion with cosmic optical background anisotropies
P Carenza, G Lucente, E Vitagliano - Physical Review D, 2023 - APS
A radiative decaying big bang relic with a mass ma≃ 5–25 eV, which we dub “blue axion,”
can be probed with direct and indirect observations of the cosmic optical background (COB) …
can be probed with direct and indirect observations of the cosmic optical background (COB) …
Anomalous flux in the cosmic optical background detected with new horizons observations
Abstract We used New Horizons LORRI images to measure the optical-band (0.4≲ λ≲
0.9μm) sky brightness within a high-galactic-latitude field selected to have reduced diffuse …
0.9μm) sky brightness within a high-galactic-latitude field selected to have reduced diffuse …
Limits on axionlike particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT
HJ Li, JG Guo, XJ Bi, SJ Lin, PF Yin - Physical Review D, 2021 - APS
In this work, we investigate the axionlike particle (ALP)-photon oscillation effect in the
spectra of the blazar Markarian 421 (Mrk 421) using 4.5 years of the Astrophysical Radiation …
spectra of the blazar Markarian 421 (Mrk 421) using 4.5 years of the Astrophysical Radiation …
Cosmic optical background excess, dark matter, and line-intensity map**
Recent studies using New Horizons's Long Range Reconnaisance Imager (LORRI) images
have returned the most precise measurement of the cosmic optical background to date …
have returned the most precise measurement of the cosmic optical background to date …
Modeling the Extragalactic Background Light and the Cosmic Star Formation History
We present an updated model for the extragalactic background light (EBL) from stars and
dust, over wavelengths≈ 0.1–1000 μm. This model uses accurate theoretical stellar spectra …
dust, over wavelengths≈ 0.1–1000 μm. This model uses accurate theoretical stellar spectra …
Anisotropic cosmic optical background bound for decaying dark matter in light of the LORRI anomaly
K Nakayama, W Yin - Physical Review D, 2022 - APS
Recently anomalous flux in the cosmic optical background (COB) is reported by the New
Horizon observations. The COB flux is 16.37±1.47 n Wm− 2 sr− 1, at the LORRI pivot …
Horizon observations. The COB flux is 16.37±1.47 n Wm− 2 sr− 1, at the LORRI pivot …