Diagnostics of active and eruptive prominences through hydrogen and helium lines modelling [PDF]
, 2008 In this study we show how hydrogen and helium lines modelling can be used to make a diagnostic of active and eruptive prominences. One motivation for this work is to identify the physical conditions during prominence activation and eruption. Hydrogen and
Labrosse, N. +2 more
core +10 more sources
Solar Emission Lines in the Extreme Ultraviolet.
Astrophysical Journal, 1959 T. Violett, William A. Rense
exaly +2 more sources
Signature of Saturn's auroral cusp : simultaneous Hubble Space Telescope FUV observations and upstream solar wind monitoring [PDF]
, 2005 Model simulations by Bunce et al. (2005a) have shown that direct precipitation of electrons in Saturn's dayside cusp regions is not capable of producing significant FUV aurora.
Cowley, Stanley W. H. +5 more
core +6 more sources
Identification of Extreme Ultraviolet Solar Emission Lines.
Astrophysical Journal, 1964 Harold Zirin
exaly +2 more sources
Proxy-based Prediction of Solar Extreme Ultraviolet Emission Using Deep Learning [PDF]
The Astrophysical Journal Letters, 2021 Abstract High-energy radiation from the Sun governs the behavior of Earth’s upper atmosphere and such radiation from any planet-hosting star can drive the long-term evolution of a planetary atmosphere. However, much of this radiation is unobservable because of absorption by Earth’s atmosphere and the interstellar medium.
Anthony Pineci +3 more
openaire +3 more sources
Radiation Pressure Acting on the Neutral He Atoms in the Heliosphere
The Astrophysical Journal, 2023 Interstellar neutral helium (ISN He) is an important source of information on the physical state of the local interstellar medium. Radiation pressure acting on the neutral helium atoms in the heliosphere has always been neglected; its effect has been ...
I. Kowalska-Leszczynska +2 more
doaj +1 more source
The Astrophysical Journal, 2022 Abstract The hydrogen Lyα (H i Lyα) emission during solar flares has rarely been studied in spatially resolved images, and its physical origin has not been fully understood. In this paper, we present novel Lyα images for a C1.4 solar flare (SOL2021-08-20T22:00) from the Extreme Ultraviolet Imager aboard Solar Orbiter, together with multi-
Y. Li +9 more
openaire +5 more sources
Explosive events in the solar atmosphere seen in extreme-ultraviolet emission lines [PDF]
Astronomy & Astrophysics, 2005 We present observations of explosive events (EEs) in the solar atmosphere obtained with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectrometer on the Solar and Heliospheric Observatory (SOHO) in the wavelength range from about 750 A to 790 A.
Mendoza-Torres, J. +2 more
openaire +2 more sources
Open flux estimates in Saturn's magnetosphere during the January 2004 Cassini-HST campaign, and implications for reconnection rates [PDF]
, 2005 During 8–30 January 2004, a sequence of 68 UV images of Saturn's southern aurora was obtained by the Hubble Space Telescope (HST), coordinated for the first time with measurements of the upstream interplanetary conditions made by the Cassini spacecraft ...
Badman, S. V. +6 more
core +6 more sources
A Model for Gradual-phase Heating Driven by MHD Turbulence in Solar Flares
The Astrophysical Journal, 2023 Coronal flare emission is commonly observed to decay on timescales longer than those predicted by impulsively driven, one-dimensional flare loop models.
William Ashfield IV, Dana Longcope
doaj +1 more source