Articles with "energy cosmic" as a keyword



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Generalized holographic dark energy and cosmic coincidence

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Published in 2021 at "New Astronomy"

DOI: 10.1016/j.newast.2020.101540

Abstract: Abstract In this work, we study a generalized interacting holographic dark energy model (GIHDEM) with a parameterized coupling constant in the spatially flat universe filled with the holographic dark energy (HDE) and dark matter (DM).… read more here.

Keywords: energy cosmic; generalized holographic; dark energy; coincidence ... See more keywords
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Potential of Constraining Propagation Parameters of Galactic Cosmic Rays with the High Energy cosmic-Radiation Detection facility onboard China's Space Station

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Published in 2023 at "Research in Astronomy and Astrophysics"

DOI: 10.1088/1674-4527/acdabd

Abstract: Precise measurements of the spectra of secondary and primary cosmic rays are crucial for understanding the origin and propagation of those energetic particles. The High Energy cosmic-Radiation Detection (HERD) facility onboard China’s Space Station, which… read more here.

Keywords: high energy; cosmic radiation; cosmic rays; radiation detection ... See more keywords
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Search for ultra high-energy cosmic rays from radiogalaxy Virgo A

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz094

Abstract: Active galactic nuclei (AGNs) are considered to be one of the most appropriate sources of ultra high energy cosmic rays (UHECRs, $E \gtrsim 10^{18} \mathrm{~eV}$). Radiogalaxy Virgo A (M87) in the centre of a cluster… read more here.

Keywords: energy cosmic; high energy; ultra high; virgo ... See more keywords
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Ultrahigh-energy cosmic-ray nuclei and neutrinos from engine-driven supernovae

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.103004

Abstract: Transrelativistic supernovae (SNe), which are likely driven by central engines via jets or winds, have been among candidate sources of ultrahigh-energy cosmic rays (UHECRs). We investigate acceleration and survival of UHECR nuclei in the external… read more here.

Keywords: energy cosmic; ray nuclei; energy; ultrahigh energy ... See more keywords
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Magnetic diffusion and interaction effects on ultrahigh energy cosmic rays: Protons and nuclei

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Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.104.063005

Abstract: The flux of ultrahigh energy cosmic rays reaching the Earth is affected by the interactions with the cosmic radiation backgrounds as well as with the magnetic fields that are present along their trajectories. We combine… read more here.

Keywords: magnetic fields; cosmic rays; energy cosmic; ultrahigh energy ... See more keywords
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Implications of strong intergalactic magnetic fields for ultrahigh-energy cosmic-ray astronomy

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Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.96.023010

Abstract: We study the propagation of ultra-high-energy cosmic rays in the magnetised cosmic web. We focus on the particular case of highly magnetised voids ($B \sim \text{nG}$), using the upper bounds from the Planck satellite. The… read more here.

Keywords: energy cosmic; magnetic fields; astronomy; implications strong ... See more keywords
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Study of muons from ultrahigh energy cosmic ray air showers measured with the Telescope Array experiment

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Published in 2018 at "Physical Review D"

DOI: 10.1103/physrevd.98.022002

Abstract: One of the uncertainties in the interpretation of ultrahigh energy cosmic ray data comes from the hadronic interaction models used for air shower Monte Carlo (MC) simulations. The number of muons observed at the ground… read more here.

Keywords: energy cosmic; energy; cosmic ray; air showers ... See more keywords
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Energetics of high-energy cosmic radiations

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.99.063012

Abstract: The luminosity densities of high-energy cosmic radiations are studied to find connections among the various components, including high-energy neutrinos measured with IceCube and gamma rays with the Fermi satellite. Matching the cosmic-ray energy generation rate… read more here.

Keywords: cosmic radiations; energy cosmic; gamma rays; high energy ... See more keywords
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Hunting for superheavy dark matter with the highest-energy cosmic rays

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.99.103016

Abstract: In 15 years of data taking the Pierre Auger Observatory has observed no events beyond $10^{11.3}$ GeV. This null result translates into an upper bound on the flux of ultrahigh-energy cosmic rays implying $J (>… read more here.

Keywords: dark matter; cosmic rays; energy cosmic; energy ... See more keywords
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Erratum: Constraints on Ultrahigh-Energy Cosmic-Ray Sources from a Search for Neutrinos Above 10 PeV with IceCube [Phys. Rev. Lett. 117, 241101 (2016)].

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Published in 2017 at "Physical review letters"

DOI: 10.1103/physrevlett.119.259902

Abstract: This corrects the article DOI: 10.1103/PhysRevLett.117.241101. read more here.

Keywords: energy cosmic; constraints ultrahigh; 117 241101; erratum constraints ... See more keywords
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The gluon condensation in high energy cosmic rays

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Published in 2018 at "International Journal of Modern Physics E"

DOI: 10.1142/s0218301318500738

Abstract: The gluon condensation (GC)-effects in high energy cosmic rays are investigated. After a brief review of the GC, several examples including gamma-, electron- and positron-spectra in a broad [Formula: see text] region can be explained… read more here.

Keywords: energy cosmic; gluon condensation; energy; high energy ... See more keywords