Results 31 to 40 of about 28,168 (221)
STOCHASTIC COUPLING OF SOLAR PHOTOSPHERE AND CORONA [PDF]
The Astrophysical Journal, 2013 36 pageS, 11 figures, 3 ...
Uritsky, Vadim M. +3 more
openaire +2 more sources
CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body
Meteoritics &Planetary Science, EarlyView.Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard +11 more
wiley +1 more source
Ryugu Reference Project: Recommendations from the Measurement Definition Team
Meteoritics &Planetary Science, EarlyView.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
The Astrophysical JournalThe solar minima between solar cycles 22–23, 23–24, and 24–25 are the best observed minima on record. In situ solar wind and interplanetary magnetic field measurements by the Wind and ACE spacecraft at L1 with 1 hr cadence are explored using wavelet ...
P. J. Steyn +3 more
doaj +1 more source
Spectral Irradiance Observations and Projections for Solar Cycle 25
Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract The Ozone Monitoring Instrument (OMI) on the Aura satellite makes near‐daily measurements of solar spectral irradiance (SSI) at wavelengths between 265 and 500 nm for instrument calibration purposes. The low degradation and exceptional stability of OMI's calibration during its lifetime facilitates the creation of a new 18‐year OMI Version 7 ...
Matthew T. DeLand +3 more
wiley +1 more source
Latitudinal Variation of the Solar Photospheric Intensity [PDF]
The Astrophysical Journal, 2008 24 pages, 8 figs, accepted in ...
Rast, Mark P. +2 more
openaire +2 more sources
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.Abstract We present a novel data analysis technique based on physics‐informed neural networks (PINNs) to reconstruct two‐dimensional (2D) magnetohydrodynamic (MHD) and Hall MHD equilibria in a space plasma from in situ spacecraft measurements. Our method incorporates the steady‐state MHD or Hall MHD equations—a set of partial differential equations ...
Hiroshi Hasegawa +3 more
wiley +1 more source
ALFVÉN WAVES IN SIMULATIONS OF SOLAR PHOTOSPHERIC VORTICES [PDF]
The Astrophysical Journal, 2013 5 pages, 4 figures, accepted to ...
Shelyag, S. +3 more
openaire +3 more sources
Reconstructing Historical Solar Indices for Predicting Past Space Weather Events
Space Weather, Volume 24, Issue 4, April 2026.Abstract Modeling and forecasting the near‐Earth space environment, specifically the thermosphere, is particularly important because it affects the motion of low‐Earth orbit objects through atmospheric drag. Solar indices such as F10.7, S10.7, M10.7, and Y10.7 are commonly used as inputs to ionospheric and thermospheric density models.
Poshan Belbase +4 more
wiley +1 more source
Solar Vortex Detection with Velocity Field Normalization: Eliminating False Positives
The Astrophysical JournalSmall-scale vortices in the solar photosphere play a central role in transporting mass, energy, and momentum into the upper solar atmosphere, yet reliably detecting these structures remains rather challenging.
Lauren McClure +4 more
doaj +1 more source