Results 181 to 190 of about 19,748,042 (292)

High-energy neutrino astrophysics

, 2018
High-energy (> 100 MeV) neutrino astrophysics enters an era of opportunity and discovery as the sensitivity of detectors approaches astrophysically relevant flux levels. We review the major challenges for this emerging field, among which the nature of dark matter, the origin of cosmic rays, and the physics of extreme objects such as active galactic ...
Learned, J. G., Mannheim, K.
openaire   +1 more source

The Reliability of HF Propagation Links Over Canada During Absorption Events

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Natural Resources Canada monitors space weather impacts to high frequency radio wave propagation using several High Frequency transmitter/receiver links across Canada. HF data received in Alert from a transmitter in Ottawa are examined in this study.
R. G. Gillies, E. Spanswick, R. Fiori, F. Ghaly, T. Cameron, S. Skone   +5 more
wiley   +1 more source

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source

Assessing the Economic Benefits of Space Weather Mitigation Investment Decisions: Evidence From Aotearoa New Zealand

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Space weather events pose a growing threat to modern economies, yet their macroeconomic consequences remain underexplored. This study presents the first dedicated economic assessment of geomagnetic storm impacts on Aotearoa New Zealand, quantifying potential gross domestic product (GDP) losses across seven conservative disruption and ...
Edward J. Oughton, Andrew Renton, Daniel H. Mac Manus, Dennies Bor, Craig J. Rodger   +4 more
wiley   +1 more source

Galactic outflows and star-formation quenching: a JWST perspective. [PDF]

Astrophys Space Sci
Davies RL, Belli S.
europepmc   +1 more source

Fifty Years Later: Revisiting Viking 2 Seismic Signals Through InSight

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract For nearly 50 years, the origin of the candidate seismic signals recorded by Viking 2 remained unresolved because of limited instrumental sensitivity, onboard observation, data compression, and the absence of Martian seismic context. Here we reconstruct the Viking seismic workflow and reinterpret the two Viking candidate events, recorded on ...
Wanbo Xiao, Jiaqi Li, Yanbin Wang, Andrew Lazarewicz   +3 more
wiley   +1 more source

Electron bunch optimization in laser wakefield acceleration through temporally asymmetric pulse shaping in ionization injection regime. [PDF]

Sci Rep
Ravina, Kim S, Gupta DN, Suk H.
europepmc   +1 more source

Frequency‐Domain Airborne Electromagnetic Imaging of Permafrost Reveals Heterogeneity and Drivers of Permafrost Change in the Discontinuous Permafrost Zone of Northwestern Canada

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract Northern permafrost landscapes are undergoing rapid warming and thaw, yet the three‐dimensional subsurface structure that governs thaw vulnerability and landscape response remains poorly resolved by conventional ground temperature monitoring and satellite remote sensing.
Keytash Moshtaghian, Alexandre Chiasson, Alejandro Alvarez, Marco Antonio Couto Jr, Lindsey J. Heagy, Médéric Lorry, Martyn Unsworth, Joseph Young, Steven V. Kokelj, Ashley C. A. Rudy, Sharon L. Smith, Duane G. Froese   +11 more
wiley   +1 more source

Laser speckle imaging for biofilm viability assessment: a noninvasive alternative to the MTT assay. [PDF]

Biomed Opt Express
Loaiza-Toscuento DI, Perez-Corona CE, Spezzia-Mazzocco T, Peregrina-Barreto H, Ramos-Garcia R, Padilla-Martinez JP, Ramirez-San-Juan JC.   +6 more
europepmc   +1 more source

Global River Sediment Retention on Delta Plains

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract Fluvial sediments have helped form approximately 830,000 km2 of coastal deltaic land, a large part of which since the Holocene slowdown of global sea‐level rise. The rate at which deltas have retained fluvial sediment to build deltaic land, however, has varied greatly between different deltas. Sources of variability as well as global estimates
J. H. Nienhuis, J. F. Paniagua‐Arroyave, F. E. Dunn, S. Cohen, T. E. Törnqvist   +4 more
wiley   +1 more source