193 citations · 1k across the 20 of their papers we have counts for
21 papers
Recycling serendipitous observations of XRISM for dark matter searches
Lidiia Zadorozhna, Denys Malyshev, Oleg Ruchayskiy
Searches for radiative decays of keV-mass dark matter have been limited by energy resolution. We propose a strategy for the XRISM/Resolve low count rate observations, and search th…
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…
Energy-dependent periodicities of LS I +61 303 in the GeV band
M. Chernyakova, D. Malyshev, A. Neronov +1
LS I +61303 is a rare representative of the gamma-ray binaries with a compact object known to be a pulsar. We report on the periodicity and spectral analysis of this source…
A study of Neural networks point source extraction on simulated Fermi/LAT Telescope images
Mariia Drozdova, Anton Broilovskiy, Andrey Ustyuzhanin +1
Astrophysical images in the GeV band are challenging to analyze due to the strong contribution of the background and foreground astrophysical diffuse emission and relatively broad…
Improved limit on axion-like particles from gamma-ray data on Perseus cluster
D. Malyshev, A. Neronov, D. Semikoz +2
Coupling of axion-like particles (ALPs) to photons in the presence of background magnetic field affects propagation of gamma-rays through magnetized environments. This results in m…