Results 191 to 200 of about 2,527 (263)

Periodic Density Structures Observed in Ulysses Data: First Results

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Periodic density structures (PDSs) are advecting quasi‐periodic (periodicities between several minutes and several hours) density enhancements observed in the solar wind and corona. There is strong evidence that PDSs are formed at the Sun.
Brent M. Randol, Nicholeen Viall, Larry Kepko, Simone Di Matteo   +3 more
wiley   +1 more source

Detection of disk-jet coprecession in a tidal disruption event. [PDF]

Sci Adv
Wang Y, Lin Z, Wu L, Lei WH, Wei S, Zhang SN, Ji L, Del Palacio S, Baldi RD, Huang Y, Liu JF, Zhang B, Yang A, Chen RR, Zhang Y, Wang AL, Yang L, Charalampopoulos P, Williams-Baldwin DRA, Yao ZH, Xie FG, Bu D, Feng H, Cao X, Wu H, Li W, Qiao E, Leloudas G, Anderson JP, Shu X, Pasham DR, Zou H, Nicholl M, Wevers T, Müller-Bravo TE, Wang J, Wei JY, Qiu YL, Guo WJ, Gutiérrez CP, Gromadzki M, Inserra C, Makrygianni L, Onori F, Petrushevska T, Altamirano D, Galbany L, Peréz-Torres M, Chen TW.   +48 more
europepmc   +1 more source

Characterizing the Signals and Backgrounds in a Low Earth Orbiting Cherenkov Detector, and Background Mitigation Strategies

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Cherenkov detectors have been used in space for decades to measure Galactic Cosmic Rays (GCRs), Solar Energetic Particles (SEPs) and trapped particles. We present proof‐of‐concept GRAS/Geant4 simulations to both show that a cubic fused silica Cherenkov detector with SiPM in LEO has a good sensitivity to SEP and GCR protons as a function of cut‐
C. S. W. Davis, F. Lei, K. Ryden, C. Dyer, G. Santin, P. Jiggens, M. Heil   +6 more
wiley   +1 more source

Disentangling Boltzmann Brains, the Time-Asymmetry of Memory, and the Second Law. [PDF]

Entropy (Basel)
Wolpert D, Rovelli C, Scharnhorst J.
europepmc   +1 more source

JWST/NIRSpec Reveals the Atmospheric Driver of Saturn's Variable Magnetospheric Rotation Rate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Past measurements of Saturn's upper atmosphere have allowed only a broad scale view of the temperature and ion density structures within the auroral region. However, Saturn's auroral currents include a planetary period current component that is produced by neutral atmospheric flows.
Tom S. Stallard, Luke Moore, Henrik Melin, Chris G. A. Smith, Omakshi Agiwal, M. Nahid Chowdhury, Rosie E. Johnson, Katie L. Knowles, Emma M. Thomas, Paola I. Tiranti, James O’Donoghue, Khalid Mohamed, Ingo Mueller‐Wodarg, John C. Coxon, Sarah V. Badman, Joe A. Caggiano   +15 more
wiley   +1 more source

Multiple outflows and delayed ejections revealed by early imaging of novae. [PDF]

Nat Astron
Aydi E, Monnier JD, Mérand A, Schaefer GH, Chomiuk L, Otulakowska-Hypka M, Fan JL, Li KL, Sokolovsky KV, Salinas R, Tucker M, Shappee B, Rudy R, Page KL, Kuin NPM, Buckley DAH, Craig P, Izzo L, Linford J, Metzger BD, Mukai K, Orio M, Shen KJ, Strader J, Sokoloski JL, Williams RE, Williams MN, Habtie GR, Kraus S, Anugu N, Bouquin JL, Chhabra S, Codron I, Gardner T, Gutierrez M, Ibrahim N, Lanthermann C, Setterholm BR, Ashall C, Hinkle JT, Jaeger T, Payne AV.   +41 more
europepmc   +1 more source

Prospects for searching for sterile neutrinos in dynamical dark energy cosmologies using joint observations of gravitational waves and $γ$-ray bursts

Lu Feng, Tao Han, Jing-Fei Zhang, Xin Zhang   +3 more
openalex   +1 more source

An Investigation on the Apparent North‐South Asymmetry Identified in Multiple Current Sheet Crossing Events in Jovian Dawn Outer Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Jovian magnetospheric dynamics are often believed to be mainly controlled by internal elements such as Jupiter's strong and fast‐rotating magnetic moment and Io's abundant volcanic escape, as these internal elements are powerful enough to control the magnetospheric dynamics, contrary to the internal elements of the earth's magnetosphere.
Weidong Gu, Yong Wei, Zhonghua Yao, Limei Yan, Yan Xu, Binzheng Zhang   +5 more
wiley   +1 more source

PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). IV. High-resolution Phased-resolved Spectroscopy of the Ultra-hot-Jupiter KELT-20 b. [PDF]

Astron J
Bonidie V, Johnson MC, Wang J, Petz S, Kamen J, Lenhart C, Duck A, Badenes C, Strassmeier K, Ilyin I.   +9 more
europepmc   +1 more source

How current CMB temperature related to cosmological redshift can be extracted from observations of 580 type Ia supernovae

Espen Gaarder Haug, Eugene Terry Tatum
openalex   +1 more source