Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Vovk, Ie."'
Autor:
Vovk, Ie., Neronov, A.
Observations of the effect of microlensing in gravitationally lensed quasars can be used to study the structure of active galactic nuclei on distance scales down to the sizes of the supermassive black holes powering source activity. We search for the
Externí odkaz:
http://arxiv.org/abs/2306.09857
Delayed "pair echo" signal from interactions of very-high-energy gamma rays in the intergalactic medium can be used for detection of the inter-galactic magnetic field (IGMF). We use the data of Fermi/LAT telescope coupled with LHAASO observatory meas
Externí odkaz:
http://arxiv.org/abs/2306.07672
Publikováno v:
A&A 653, L4 (2021)
Tibet AS-gamma collaboration has recently reported detection of gamma-rays with energies up to Peta-electronvolt from parts of the Galactic plane. We notice that the analysis of gamma-ray flux by the Tibet AS-gamma experiment also implies an upper bo
Externí odkaz:
http://arxiv.org/abs/2107.06541
Autor:
Chernyakova, M., Malyshev, D., Paizis, A., La Palombara, N., Balbo, M., Walter, R., Hnatyk, B., van Soelen, B., Romano, P., Munar-Adrover, P., Vovk, Ie., Piano, G., Capitanio, F., Falceta-Goncalves, D., Landoni, M., Luque-Escamilla, P. L., Marti, J., Paredes, J. M., Ribo, M., Safi-Harb, S., Saha, L., Sidoli, L., Vercellone, S.
Publikováno v:
A&A 631, A177 (2019)
We simulate the spectral behaviour of the non-transient gamma-ray binaries using archival observations as a reference. With this we test the CTA capability to measure the sources' spectral parameters and detect variability on various time scales. We
Externí odkaz:
http://arxiv.org/abs/1909.11018
Publikováno v:
A&A 619, A7 (2018)
Context. The increase in sensitivity of Imaging Atmospheric Cherenkov Telescopes (IACTs) has lead to numerous detections of extended $\gamma$-ray sources at TeV energies, sometimes of sizes comparable to the instrument's field of view (FoV). This cre
Externí odkaz:
http://arxiv.org/abs/1806.03167
Autor:
Chernyakova, M., Babyk, Iu., Malyshev, D., Vovk, Ie., Tsygankov, S., Takahashi, H., Fukazawa, Ya.
LSI +61 303 is one of the few X-ray binaries with a Be star companion from which radio, X-rays and high-energy gamma-ray (GeV and TeV) emission have been observed. The nature of the high energy activity of the system is not yet fully understood, but
Externí odkaz:
http://arxiv.org/abs/1705.09343
Akademický článek
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Akademický článek
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Publikováno v:
Phys. Rev. D 94, 123018 (2016)
Muon component of extensive air showers (EAS) initiated by cosmic ray particles carries information on the primary particle identity. We show that the muon content of EAS could be measured in a broad energy range from 10-100 TeV up to ultra-high-ener
Externí odkaz:
http://arxiv.org/abs/1610.01794
Autor:
Prandini, E., Pedaletti, G., Da Vela, P., Wilhelmi, E. de Ona, Colin, P., Fruck, C., Strzys, M., Vovk, Ie.
The MAGIC telescopes are an array of two imaging atmospheric Cherenkov telescopes (IACTs) studying the gamma ray sky at very high-energies (VHE; E>100 GeV). The observations are performed in stereoscopic mode, with both telescopes pointing at the sam
Externí odkaz:
http://arxiv.org/abs/1509.02391