Results 111 to 120 of about 78,655 (291)
Reconnection Preferentially Accelerates Light Ions at Ganymede's Magnetopause
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Juno's flyby of Ganymede revealed ion composition in its vicinity with the Jovian Auroral Distributions Experiment–Ion (JADE‐I) instrument. Throughout this flyby, we derive species‐resolved ion density and velocity moments by decomposing the time‐of‐flight data into contributions from individual ion species using species‐dependent fits. At the
T. W. Oberg +7 more
wiley +1 more source
High-Energy Astrophysics in the 2020s and Beyond [PDF]
, 2019 With each passing decade, we gain new appreciation for the dynamic, connected, and often violent nature of the Universe. This reality necessarily places the study of high-energy processes at the very heart of modern astrophysics.
Arnaud, Keith +9 more
core +1 more source
Relativistic Astrophysical Plasmas
Kakuyūgō kenkyū, 1989 Selected theoretical topics in high energy astrophysics are discussed. Firstly an account is given of accretion disks around a massive black hole and radiation processes in hot thermal plasmas. Then recent studies on the effects of electron-positron pairs in relativistic thermal plasmas are summarized.
openaire +2 more sources
Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source
, 2012 Notes from a series of 13 one hour (or more) lectures on Plasma Physics given to Ramesh Narayan' research group at the Harvard-Smithsonian Center for Astrophysics, between January and July 2012.
Bret, Antoine
core
Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling
AGU Advances, Volume 7, Issue 2, April 2026.Abstract The offset between Earth's magnetic and rotational axes introduces a diurnal dependence in the high‐latitude EUV exposure of the northern hemisphere (NH) and southern hemisphere (SH). This variation raises the question: Does the Universal Time (UT) of geomagnetic storm onset impact its geospace consequences?
Kalpesh Ghag +6 more
wiley +1 more source
Radio Pulse Power Distribution of Lightning in Jupiter's 2021–2022 Stealth Superstorms
AGU Advances, Volume 7, Issue 2, April 2026.Abstract Surveys and observations of lightning on Jupiter prior to the NASA Juno mission used night‐side imaging approaches, and a common conclusion was that the optical energy was similar to the highest energy terrestrial lightning flashes, or superbolts.
Michael H. Wong +12 more
wiley +1 more source
The Astrophysical JournalX-ray observations of shock-heated plasmas, such as those found in supernova remnants (SNRs), often exhibit features of temperature and ionization nonequilibrium. For accurate interpretation of these observations, proper calculations of the equilibration
Yuken Ohshiro +4 more
doaj +1 more source
Dataset of Quiet Space Weather Periods for Ionospheric Studies
Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract The ionosphere is a dynamic environment regularly affected from above and from below. This study identifies periods within the years 2000–2023 when the impact from above, driven by space weather, was minimal. The quiet space weather periods have wide usage for two types of ionospheric studies. At first, studies of isolated space weather events
Šimon Mackovjak +12 more
wiley +1 more source
Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract In August 1969, intense rainfall from the remnants of Hurricane Camille triggered >150 debris flows in Fortune's Cove, a first‐order drainage basin in central Virginia. These debris flows reshaped the landscape by stripping colluvium and vegetation from hollows.
A. M. Ackerman +3 more
wiley +1 more source