Results 71 to 80 of about 1,546,467 (200)
Jupiter's Auroral Ionosphere: Hybrid Monte Carlo, Auroral Spectrum and Conductivity Modeling
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract We present a new model of auroral precipitation and associated phenomena at Jupiter, called the Jupiter Auroral Ionosphere Code (JAIC). The hybrid model follows the primary electron population using a Monte Carlo code that runs on a GPU, and computes the contribution of the secondaries using a two‐stream approximation.
J. D. Nichols
wiley +1 more source
Mastcam‐Z Spectrophotometric Properties of Materials at the Van Zyl Overlook, Jezero Crater
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract During Sols 63–65 of Mars 2020, Mastcam‐Z multispectral (442–1022 nm) images were acquired at Van Zyl Overlook (VZO), spanning phase angles from ∼0° to 150°, to model photometric parameters for seven surface units. These units included rocks, soils, regolith, and rover tracks near the Jezero landing site.
B. Margara +6 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesGravitational waves (GWs) from binary neutron stars (BNSs) are expected to be accompanied by electromagnetic (EM) emissions, which help identify the host galaxy.
Tathagata Ghosh +3 more
doaj +1 more source
Thermal Escape of Atomic Hydrogen on Mars: A Comprehensive View With a General Circulation Model
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract Mars loses water mainly through the photodissociation of water vapor, followed by the thermal escape of light hydrogen atoms. Observations have revealed large seasonal variations in hydrogen concentration in the upper thermosphere, peaking during southern summers and intensifying during dust storms.
Alexander S. Medvedev, Ngan H. D. Trinh
wiley +1 more source
The Global Hubble Constant [PDF]
Australian Journal of Physics, 1990 A review of large-scale investigations of the determination of H is presented. The infrared period-luminosity relation of Cepheids gives distances accurate to -2% to nearby galaxies. Based on the distances of M31, MH, N300 and N2403, a DM of 31 ·30 ±O· 20 has been derived to the nearby Virgo cluster from the TF relation of spirals at four wavebands ...
openaire +1 more source
Remarks on overestimating the effects of inhomogeneities on the Hubble constant [PDF]
, 2023 The Hubble constant is one of the most important parameters in cosmology. Discrepancies in values of the Hubble constant estimated from various measurements, the so-called Hubble tension, are a serious problem.
Miura, Taishi, Tanaka, Takahiro
core +1 more source
The Hubble Tension Resolved by the DESI Baryon Acoustic Oscillations Measurements
The Astrophysical Journal LettersThe Lambda cold dark matter (ΛCDM) cosmological model provides a good description of a wide range of astrophysical and cosmological observations. However, severe challenges to the phenomenological ΛCDM model have emerged recently, including the Hubble ...
X. D. Jia +4 more
doaj +1 more source
Batteries &Supercaps, Volume 9, Issue 5, May 2026.Lithium‐ion batteries used in space applications are exposed to extreme conditions, including radiation, vacuum, wide temperature fluctuations, and long storage times, all of which accelerate degradation. This review article summarizes the main degradation mechanisms affecting battery performance in space environments, including capacity fade ...
Xunkai Chen, Kelsey B. Hatzell
wiley +1 more source
Uncorrelated Estimations of H0 Redshift Evolution from DESI Baryon Acoustic Oscillation Observations
The Astrophysical Journal LettersThe Dark Energy Spectroscopic Instrument (DESI) collaboration recently released the first-year data of baryon acoustic oscillations (BAOs). Based on the five different tracers, the cosmological constraint shows a hint of deviation from the standard ΛCDM ...
X. D. Jia +3 more
doaj +1 more source
New terrace‐tile inlet technologies reduce sediment and nutrient losses
Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.Abstract Surface inlets such as Hickenbottom risers (HBRs) are often used to drain closed depressions and potholes across agricultural landscapes in the US Midwest. Although HBRs provide efficient drainage, they also transport substantial nutrient and sediment losses from fields.
Charchit Bansal +3 more
wiley +1 more source