Results 101 to 110 of about 384,338 (204)

Magnetosheath Jet‐Triggered ULF Waves: Energy Deposition in the Ionosphere

Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract Magnetosheath jets, transient plasma structures of enhanced dynamic pressure, have been observed to trigger ultra‐low frequency (ULF) waves in the magnetosphere. These ULF waves contribute to energy transport in the magnetosphere‐ionosphere system. Therefore, there is a need to estimate the energy input into the ionosphere due to jet‐triggered
E. Krämer, M. Hamrin, H. Gunell, L. Baddeley, N. Partamies, S. Raptis, K. Herlingshaw, A. Schillings   +7 more
wiley   +1 more source

Observation of O+ Characteristics During the Terrestrial Alfvén Wing State Induced by the April 2023 Coronal Mass Ejection

Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract We report Magnetospheric Multiscale observations of oxygen ions (O+) during a coronal mass ejection (CME) in April 2023 when the solar wind was sub‐Alfvénic and Alfvén wings formed. For the first time, O+ characteristics are studied at the contact region between the unshocked solar wind and the magnetosphere.
Haoming Liang, Li‐Jen Chen, Stephen A. Fuselier, Roman G. Gomez, Brandon Burkholder, Naoki Bessho, Harsha Gurram, Rachel C. Rice, Jason Shuster, Akhtar S. Ardakani   +9 more
wiley   +1 more source

Nowcasting Solar Energetic Particle Events for Mars Missions

Space Weather, Volume 23, Issue 4, April 2025.
Abstract In addition to the omnipresent Galactic Cosmic Rays, sudden Solar Energetic Particle (SEP) events present considerable health hazards for manned space missions. These events not only contribute to an increased long‐term cancer risk, but can, in extreme cases, cause acute radiation syndromes.
Jan Leo Löwe, Salman Khaksarighiri, Robert F. Wimmer‐Schweingruber, Donald M. Hassler, Bent Ehresmann, Jingnan Guo, Günther Reitz, Thomas Berger, Daniel Matthiä, Cary Zeitlin, Sven Löffler   +10 more
wiley   +1 more source

On relativistic jet/counterjet asymmetry in the presence of radiating jet boundary layer [PDF]

arXiv, 2002
We consider radiation of relativistic electrons accelerated within the jet extended boundary layer. Due to velocity shear across the boundary the observed jet/counterjet brightness ratio is diminished as compared to the one derived for the jet spine. Thus the jet Lorentz factor evaluated from the observed jet asymmetry can be an underestimated value ...
arxiv  

HYPERSONIC BUCKSHOT: ASTROPHYSICAL JETS AS HETEROGENEOUS COLLIMATED PLASMOIDS [PDF]

, 2009
Kristopher Yirak, Adam Frank, A. J. Cunningham, Sorin Mitran   +3 more
openalex   +3 more sources

Cosmic Rays and the Askaryan Effect Reveal Subsurface Structure and Buried Ice on the Moon

Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract We present the first full‐wavelength numerical simulations of the electric field generated by cosmic ray impacts into the Moon. Billions of cosmic rays fall onto the Moon every year. Ultra‐high energy cosmic ray impacts produce secondary particle cascades within the regolith and subsequent coherent, wide‐bandwidth, linearly‐polarized radio ...
E. S. Costello, R. R. Ghent, A. Romero‐Wolf, P. W. Gorham, P. G. Lucey, C. J. Tai Udovicic, P. Linton, A. Ludwig, K. McBride, C. Miki, E. Oberla, J. Rolla, A. Jung   +12 more
wiley   +1 more source

Observed jet power and radiative efficiency of black hole candidates in the Kerr+PFDM model

European Physical Journal C: Particles and Fields
In this research, we explore the electromagnetic energy emitted by astrophysical black holes within the Kerr+PFDM (Kerr + perfect fluid dark matter) spacetime, a model comprising rotating black holes surrounded by dark matter.
Bakhtiyor Narzilloev, Ahmadjon Abdujabbarov, Bobomurat Ahmedov, Cosimo Bambi   +3 more
doaj   +1 more source

Strongly interacting matter exhibits deconfined behavior in massive neutron stars. [PDF]

Nat Commun, 2023
Annala E, Gorda T, Hirvonen J, Komoltsev O, Kurkela A, Nättilä J, Vuorinen A.   +6 more
europepmc   +1 more source

Numerical Simulations of Astrophysical Jets from Keplerian Disks with Periodic Ejection [PDF]

, 2003
B. F. Vitorino, V. Jatenco‐Pereira, R. Opher   +2 more
openalex   +1 more source

Merger-driven Growth of Intermediate-mass Black Holes: Constraints from Hubble Space Telescope Imaging of Hyper-luminous X-Ray Sources

The Astrophysical Journal
Hyper-luminous X-ray sources (HLXs) are extragalactic off-nuclear X-ray sources with luminosities exceeding the theoretical limit for accretion onto stellar-mass compact objects.
R. Scott Barrows, Mar Mezcua, Julia M. Comerford, Daniel Stern   +3 more
doaj   +1 more source