Results 141 to 150 of about 255,574 (289)
High-energy neutrinos from Galactic sources
, 2010 Even 100 years after the discovery of cosmic rays their origin remains a mystery. In recent years, TeV gamma-ray detectors have discovered and investigated many Galactic sources where particles are accelerated up to energies of 100 TeV.
Kappes, A.
core +1 more source
Hybrid cosmic rays detector [PDF]
Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016), 2017 Diego Andrade, Julian Felix
openaire +1 more source
Unraveling the active site cover of coproheme decarboxylase from Listeria monocytogenes
The FEBS Journal, EarlyView.During heme biosynthesis in Gram‐positive bacteria, coproheme decarboxylase (ChdC) catalyzes the conversion of four‐propionate substrate coproheme to the two propionate product heme b. Its active site is universally covered by a flexible linking loop. This study identifies an important histidine residue, which stabilizes the loop in a ChdC homolog.
Nikolaus Falb +4 more
wiley +1 more source
Cosmic ray antimatter and baryon symmetric cosmology [PDF]
The relative merits and difficulties of the primary and secondary origin hypotheses for the observed cosmic-ray antiprotons, including the new low-energy measurement of Buffington, et al.
Kazanas, D. +2 more
core +1 more source
, 2017 We present an update of the cosmic ray energy spectrum measured from $3{\times}10^{17}$ eV to over $10^{20}$ eV at the Pierre Auger Observatory. This energy range is covered by combining data from the surface detector (subdividing the events into a ...
F. Fenu
semanticscholar +1 more source
Palamism Does Not Disfigure the Gospel: A Reply to Thomas Weinandy
International Journal of Systematic Theology, EarlyView.Abstract In a 2024 article in the IJST, Fr. Thomas Weinandy argues that the theological system of Gregory Palamas is in grave error, especially with respect to its commitment to an objective ontological distinction between God's essence and His energies. In his concluding paragraph Fr.
Travis Dumsday
wiley +1 more source
Prospects of detecting cosmic ray up-scattered dark matter with DUNE
Journal of High Energy PhysicsDetection of sub-GeV dark matter (DM) particles in direct detection experiments is inherently difficult, as their low kinetic energies in the galactic halo are insufficient to produce observable recoils of the heavy nuclei in the detectors.
Richard Diurba, Helena Kolešová
doaj +1 more source
Cosmic ray sources and detectors
The European Physical Journal Special TopicsAbstract The origin of cosmic rays has remained an enduring mystery in astrophysics since their discovery by Victor Hess in 1912. However, extensive studies on the energy spectrum, mass composition, and angular distributions of cosmic rays have been conducted through both space-based and ground-based experiments.
openaire +1 more source
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
The importance of atmospheric monitoring at the Pierre Auger Observatory
EPJ Web of Conferences, 2017 The Pierre Auger Observatory is an ultra-high energy cosmic ray experiment employing a giant surface array of particle detectors together with telescopes to image fluorescence light from extensive air showers in the atmosphere.
Dawson Bruce R.
doaj +1 more source