Results 81 to 90 of about 9,726 (203)
Investigating the Impact of Rocket Exhaust on Ionospheric Disturbances
Space Weather, Volume 24, Issue 5, May 2026.Abstract The study of chemical releases into the ionosphere is crucial for understanding ionospheric dynamics and managing space environmental effects. In this work, we investigate the impact of rocket exhaust emissions, particularly CO2 and H2O, on electron density in the ionosphere.
Cunqun Fan +7 more
wiley +1 more source
, 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 +5 more
core +1 more source
The intrinsic B-mode polarisation of the cosmic microwave background [PDF]
, 2014 . We estimate the B-polarisation induced in the Cosmic Microwave Background by the non-linear evolution of density perturbations. Using the second-order Boltzmann code SONG, our analysis incorporates, for the first time, all physical effects at ...
Guido Pettinari (16190237) +16 more
core +1 more source
Modified Temperature–Redshift Relation and Ultra-high-energy Cosmic Ray Propagation
The Astrophysical JournalWe reexamine the interactions of ultra-high-energy cosmic rays (UHECRs) with photons from the cosmic microwave background (CMB) under a changed, locally nonlinear temperature–redshift relation T ( z ).
Janning Meinert +5 more
doaj +1 more source
Status of the program for microwave detection of cosmic rays at the Pierre Auger observatory
EPJ Web of Conferences, 2013 Radiation in the microwave band from the passage of charged particles through air has been detected in the laboratory. This radiation could provide a novel technique for the detection of ultra-high energy cosmic rays over large areas, with 100% duty ...
Luis P. Facal San
doaj +1 more source
Ryugu reference project: Recommendations from the measurement definition team
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
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
Ultra-high-energy Cosmic-Ray Sources Can Be Gamma-Ray Dim
The Astrophysical Journal LettersUltra-high-energy cosmic rays (UHECRs), accelerated hadrons that can exceed energies of 10 ^20 eV, are the highest-energy particles ever observed. While the sources producing UHECRs are still unknown, the Pierre Auger Observatory has detected a large ...
Angelina Sherman +3 more
doaj +1 more source
Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley +1 more source
The Astrophysical Journal“PeVatrons” refer to astrophysical sources capable of accelerating particles to energies around 10 ^15 electron volts and higher, potentially contributing to the cosmic-ray spectrum in the knee region.
Jianli Zhang, YiQing Guo
doaj +1 more source