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44 papers · 1 filter
Search for Gamma-ray Spectral Lines from Dark Matter Annihilation up to 100 TeV towards the Galactic Center with MAGIC
MAGIC Collaboration, H. Abe, S. Abe +210
Line-like features in TeV -rays constitute a ''smoking gun'' for TeV-scale particle dark matter and new physics. Probing the Galactic Center region with ground-based Cherenkov t…
Is bound entanglement Lorentz invariant?
Paweł Caban, Beatrix C. Hiesmayr
Bound entanglement, in contrast to free entanglement, cannot be distilled into maximally entangled states by two local observers applying measurements and utilizing classical commu…
Lamp-post with an outflow and the hard state of Cyg X-1
Lukasz Klepczarek, Andrzej Niedzwiecki, Michal Szanecki
Relativistic reflection observed in the hard states of accreting black holes often shows a weak amplitude relative to the main Comptonization component, which may result from eithe…
Spectrum of the Stress Dynamics with the Bak-Tang-Wiesenfeld Sandpile
Alexander Shapoval, Mikhail Shnirman
With the original Bak-Tang-Wisenefeld (BTW) sandpile we uncover the noise in the mechanism maintaining self-organized criticality (SOC) - the question raised together with th…
Hot accretion flows in low-luminosity active galactic nuclei in NGC 4258 and NGC 7213
Michal Szanecki, Andrzej Niedzwiecki, Rafal Wojaczynski
We study the high energy emission of two active galactic nuclei (AGN), NGC 4258 and NGC 7213. We directly apply the general-relativistic (GR) hot flow model, kerrflow, to the archi…
A study on Performance Boost of a 17~m class Cherenkov telescope with a SiPM-based camera
Cornelia Arcaro, Michele Doro, Julian Sitarek +1
The current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs), comprised of major installations such as the MAGIC telescopes, H.E.S.S. and VERITAS, is classified as th…