Results 31 to 40 of about 111 (106)
Earth and Space Science, Volume 13, Issue 1, January 2026.Abstract Context. The Electron Proton Helium INstrument (EPHIN) aboard SOlar and Heliospheric Observatory is a particle telescope that measures energetic protons and helium above 4 MeV/nuc and electrons above 150 keV. While a calibration of EPHIN has been performed before launch, it has only partially been assessed reducing the accuracy of the detector
M. Hörlöck +4 more
wiley +1 more source
CNN‐Based Model for 3D CME Parameter Prediction – A Proof of Concept
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.Abstract Accurate 3D reconstruction of coronal mass ejections (CMEs) is essential for understanding their propagation and improving space weather forecasts. In this study, we present a proof‐of‐concept deep learning framework that predicts seven parameters from synthetic multi‐view coronagraph images.
Harshita Gandhi, Huw Morgan, Cory Thomas
wiley +1 more source
Radio Science, Volume 60, Issue 12, December 2025.Abstract We present and compare different techniques to isolate the dispersive noise contribution from radiometric observables in deep space missions. These techniques have been tested using range and Doppler data collected during five superior solar conjunctions of ESA's (European Space Agency) BepiColombo spacecraft in its cruise phase.
I. Doria +7 more
wiley +1 more source
Significant Results from SUMER/SOHO
, 2006 We briefly outline recent observations by solar spacecraft such as Yohkoh, SOHO, TRACE, and RHESSI, which have revolutionized what we know and don't know about the Sun. We then present some significant results, mainly from SUMER/SOHO but also complimentary from the other SOHO's experiments, such as CDS, EIT, UVCS, and LASCO.
openaire +2 more sources
Off-limb (Spicule) DEM Distribution from SoHO/SUMER Observations [PDF]
Solar Physics, 2012 In the present work we derive a Differential Emission Measure (DEM) dis- tribution from a region dominated by spicules. We use spectral data from the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectrometer on-board the Solar Heliospheric Observatory (SoHO) covering the entire SUMER wavelength range taken off-limb in the Northern polar ...
Vanninathan, K. +3 more
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MHD Forecasting of Solar Wind With Coronal Mass Ejections
Space Weather, Volume 23, Issue 12, December 2025.Abstract We present a model, implemented as an online service, for predicting the speed and density of solar wind in the inner heliosphere and near Earth. The model is based on a numerical magnetohydrodynamics code PLUTO. The inner boundary maps are continuously obtained from the National Centers for Environmental Prediction, where they are updated 1 ...
S. Arutyunyan +3 more
wiley +1 more source
Exploring the Validation Results of the Advanced Solar Particle Events Casting System (ASPECS)
Space Weather, Volume 23, Issue 11, November 2025.Abstract Solar Energetic Particle (SEP) events can adversely affect space and ground‐based systems. Space weather effects associated with SEP events can impact communication and navigation systems, spacecraft electronics and operations, space power systems, crewed space missions, and commercial aircraft operations.
Athanasios Papaioannou +13 more
wiley +1 more source
Flare observation of the Sun as a star by SUMER/SOHO in the hydrogen Lyman continuum [PDF]
Astronomy & Astrophysics, 2004 During the execution of the programme "Sun as a star", while the SUMER (Solar Ultraviolet Emission of Emitted Radiation)/SOHO (SOlar and Heliospheric Observatory) slit was collecting the scattered radiation from the telescope mirror far away from the solar disk image, a class X5.3/3b flare erupted on the solar disk, on 25 August 2001.
Lemaire, P. +5 more
openaire +2 more sources
Space Weather Impact of Three Solar Flares Observed by the POEMAS Telescope at 45 and 90 GHz
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract Solar flares are often associated with coronal mass ejections (CMEs) that, when directed toward Earth, can disrupt the magnetosphere and impact space weather. In this study, we investigate three long‐duration solar flares observed in 2012 by the POlarization Emission of Millimeter Activity at the Sun (POEMAS) telescopes at 45 and 90 GHz.
Adriana Valio +4 more
wiley +1 more source
Solar Radio Wide‐Band Spectroscopy and Imaging Facilities of the Chinese Meridian Project Phase II
Space Weather, Volume 23, Issue 11, November 2025.Abstract Solar eruptions, including flares and coronal mass ejections, are the most energetic phenomena in the solar system. These explosive events accelerate high‐energy particles and generate electromagnetic radiation from radio to gamma‐ray wavelengths, producing heliospheric disturbances and acting as primary drivers of space weather hazards.
Yihua Yan +19 more
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