90 citations · 204 across the 17 of their papers we have counts for
16 papers
The performance of the TA4 surface detector array: 4.3 years of the first-half expansion
Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +126
The Telescope Array (TA) experiment aims to reveal the origin of ultra-high-energy cosmic rays (UHECRs) by observing air showers using surface detectors (SDs), which spread over an…
Reionization, UV Luminosity and 21cm Sensitivity to Primordial Magnetic Fields: Impact of Energy Losses
Gaétan Facchinetti, Alexander Korochkin, Laura Lopez-Honorez +1
Magnetic fields with field strengths between G and a few Nanogauss are expected to exist today in the intergalactic medium (IGM). Their origin is unknown, but may be of…
Searching for EeV photons with Telescope Array Surface Detector and neural networks
Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +126
Ultra-high-energy photons play an important role in probing astrophysical models and beyond-Standard-Model scenarios. We report updated limits on the diffuse photon flux using Tele…
Bright Cosmic-Ray Source as a Solution to Auger-TA Tensions
Alexander Korochkin, Dmitri Semikoz, Peter Tinyakov
The ultra-high-energy cosmic ray (UHECR) spectra measured by the Pierre Auger Observatory (Auger) and the Telescope Array (TA) agree very well below eV but differ signi…
Displacement of ultra-high-energy cosmic ray source images by the intergalactic magnetic field: the cases of Cen A and M83
K. Dolgikh, A. Korochkin, G. Rubtsov +2
The standard assumption about the influence of the turbulent intergalactic magnetic field (IGMF) on the images of ultra-high-energy cosmic rays (UHECR) sources is that the latter a…
UHECR deflections in the coherent Galactic magnetic field
Alexander Korochkin, Dmitri Semikoz, Peter Tinyakov
We study the deflections of ultra-high-energy cosmic rays in several widely used models of the coherent Galactic magnetic field (GMF), including PT11 (Pshirkov et al. [1]), JF12 (J…
The coherent magnetic field of the Milky Way halo, Local Bubble and Fan Region
Alexander Korochkin, Dmitri Semikoz, Peter Tinyakov
Recent catalog of Faraday rotation measures (RM) of extragalactic sources together with the synchrotron polarization data from WMAP and Planck provides us with a wealth of informat…
Images of the Ultra-High Energy Cosmic Rays from Point Sources
K. Dolgikh, A. Korochkin, G. Rubtsov +2
Our latest paper investigates the effects of UHECR propagation in a turbulent intergalactic magnetic field in the small-angle scattering regime, specifically focusing on the non-tr…
Caustic-like Structures in UHECR Flux after Propagation in Turbulent Intergalactic Magnetic Fields
K. Dolgikh, A. Korochkin, G. Rubtsov +2
UHECR propagation in a turbulent intergalactic magnetic field in the small-angle scattering regime is well understood for propagation distances much larger than the field coherence…
A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi/LAT observations
MAGIC Collaboration, V. A. Acciari, I. Agudo +206
Extended and delayed emission around distant TeV sources induced by the effects of propagation of gamma rays through the intergalactic medium can be used for the measurement of the…
Detectability of large correlation length inflationary magnetic field with Cherenkov telescopes
Alexander Korochkin, Andrii Neronov, Guilhem Lavaux +2
Magnetic fields occupying the voids of the large scale structure may be a relic from the Early Universe originating from either Inflation or from cosmological phase transitions. We…
Account of the baryonic feedback effect in gamma-ray measurements of intergalactic magnetic fields
Kyrylo Bondarenko, Alexey Boyarsky, Alexander Korochkin +3
Intergalactic magnetic fields in the voids of the large-scale structure can be probed via measurements of secondary gamma-ray emission from gamma-ray interactions with extragalacti…
Sensitivity reach of gamma-ray measurements for strong cosmological magnetic fields
A. Korochkin, O. Kalashev, A. Neronov +1
A primordial magnetic field with the strength in the 1-10 pG range can resolve the tension between different measurements of the Hubble constant and provide an explanation for the…
Search for decaying eV-mass axion-like particles using gamma-ray signal from blazars
A. Korochkin, A. Neronov, D. Semikoz
Decaying axion-like particles (ALP) with masses in the eV range which might occupy dark matter halos of the Milky Way and other galaxies produce a characteristic "bump" feature in…
Search for spectral features in extragalactic background light with gamma-ray telescopes
A. Korochkin, A. Neronov, D. Semikoz
Cumulative optical and infrared emission from galaxies accumulated over cosmological time scales, the extragalactic background light (EBL), could be probed by complementary techniq…
Search for anomalous features in gamma-ray blazar spectra corrected for the absorption on the extragalactic background light
Alexander Korochkin, Grigory Rubtsov, Sergey Troitsky
We consider the ensemble of very-high-energy gamma-ray sources observed at distances and energies where a significant absorption of gamma rays is expected due to pair production on…