Results 91 to 100 of about 22,727 (221)

The Search For Pulsar Wind Nebulae in the Very High Energy Gamma-ray Regime [PDF]

, 2010
The aim of this Thesis is to study the development of pulsar wind nebulae in the TeV regime and in doing so uncover more sources which have as yet not been observed at these wavelengths.
KEOGH, DOMINIC,ROBERT, Keogh, Dominic Robert   +1 more
core  

The influence of galactic cosmic rays on ion-neutral hydrocarbon chemistry in the upper atmospheres of free-floating exoplanets

, 2014
The authors highlight financial support of the European Community under the FP7 by an ERC starting grant.Cosmic rays may be linked to the formation of volatiles necessary for prebiotic chemistry.
P. B. Rimmer, C. Bilger, Rimmer, P.B., Helling, C., Bilger, C., Ch. Helling   +5 more
core   +1 more source

Beyond the Local Void: A Data-driven Search for the Origins of the Amaterasu Particle

The Astrophysical Journal
We introduce a simulation-based inference framework to constrain the origins of individual ultra-high-energy cosmic rays by combining realistic three-dimensional propagation modeling with Bayesian parameter estimation.
Nadine Bourriche, Francesca Capel
doaj   +1 more source

On ultra-high energy cosmic rays [PDF]

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2018), 2019
This paper summarizes some results on our understanding of the origin of ultra-high energy cosmic rays.
openaire   +1 more source

Mass sensitive observables of simulated cosmic ray air showers

, 2022
Schroeder, Frank G.Extensive cosmic ray research has been performed over the course of the last century, yet the origin of the highest energy cosmic rays remains unknown.
Flaggs, Benjamin S.
core   +1 more source

Probing the Sources of Ultra-High-Energy Cosmic Rays—Constraints from Cosmic-Ray Measurements

Universe
Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known—and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination ...
Teresa Bister
doaj   +1 more source

The mass of cosmic rays of ultra-high energy

Astroparticle Physics
7 pages; four figures; Submitted to Astroparticle ...
openaire   +2 more sources

High resolution gamma-ray astronomy in the energy range 0.05 to 10 mev [PDF]

, 1985
An analysis of the detection properties of an actively shielded 86cm (^3) germanium detector is given. Results are presented of observations of the Crab Nebula, its associated pulsar PSR0531+21, the Seyfert galaxy NGC1275, and the COS B source 2CG195+
Owens, Alan, Owens, A
core  

Constraints on cosmic-ray propagation and acceleration models from recent data

, 2011
We are studying the constraints obtained on transport and acceleration mechanisms of galactic cosmic rays by using statistical tools in combination with the propagation package GALPROP and recent PAMELA data.
Wu, Juan, Wu, Juan,, Gillard, William, Putze, Antje,, Gillard, William,, Pearce, Mark, Pearce, Mark,, Putze, Antje   +7 more
core   +1 more source

Active galactic nuclei: sources for ultra high energy cosmic rays [PDF]

, 2009
Ultra high energy cosmic ray events presently show a spectrum, which we interpret here as galactic cosmic rays due to a starburst, in the radio galaxy Cen A which is pushed up in energy by the shock of a relativistic jet.
Meli, Athina, LÁ, Gergely, T, Stanev, MELI, A., P. L. BIERMANN, Becker, Julia J.K., IC, Mariş, JK, Becker, V. DE SOUZA, Souza, Vitor de, A. MELI, Biermann, Peter P.L., T. STANEV, CARAMETE, L., A, Meli, BECKER, J. K., L. GERGELY, Stanev, Todor, I. C. MARIŞ, GERGELY, L., L, Caramete, V, de Souza, STANEV, T., Gergely, László Árpád L., De Souza, Vitor, Caramete, Laurent¸iu Ioan L., J. K. BECKER, Maris, Ioana Codrina, Souza, V. de, MARIS, I. C., L. CARAMETE, PL, Biermann, BIERMANN, P. L.   +32 more
core   +1 more source