4 papers
AGN spectral variability across activity states and searches for axion-like particles
Denys Malyshev, Lidiia Zadorozhna, Yuriy Bidasyuk +2
Axion-like particles (ALPs) are compelling candidates for dark matter and potential portals to new physics beyond the Standard Model. Photons traversing magnetized regions can conv…
Active galactic nuclei through the prism of galaxy clusters: bounds on axion-like particles
Denys Malyshev, Lidiia Zadorozhna, Yuriy Bidasyuk +2
Hypothetical axion-like particles (ALPs) are of interest because of their potential to act as dark matter or to reveal information about yet undiscovered fundamental constituents o…
INTEGRAL/ISGRI post 2024-periastron view of PSR B1259-63
A. Kuzin, D. Malyshev, M. Chernyakova +2
PSR B1259-63/LS 2883 is a well-studied gamma-ray binary hosting a pulsar in a 3.4-year eccentric orbit around a Be-type star. Its non-thermal emission spans from radio to TeV energ…
Ideas and Requirements for the Global Cosmic-Ray Observatory (GCOS)
Markus Ahlers, Ingo Allekotte, Jaime Alvarez-Muniz +136
After a successful kick-off meeting in 2021. two workshops in 2022 and 2023 on the future Global Cosmic-Ray Observatory (GCOS) focused mainly on a straw man design of the detector…