Results 21 to 30 of about 12,501,323 (353)
Universe, 2021 Failed filament eruption remains mysterious on its initiation, magnetic environment, and erupting and failing mechanisms. We present multi-wavelength observations of a failed filament eruption and its associated hovered coronal mass ejection (hovered-CME)
Yin Zhang +4 more
doaj +1 more source
The magnetic fields, activity and hidden companions of solar-type stars [PDF]
, 2023 The magnetic fields of the Sun and other solar-type stars manifest in a range of observable surface phenomena that provide insight into the magnetic dynamos operating within, but also hamper the detection of exoplanets.
Brown, Emma
core +1 more source
Solar cyclic activity over the last millennium reconstructed from annual 14C data [PDF]
Astronomy & Astrophysics, 2021 Aims. The 11-year solar cycle (Schwabe cycle) is the dominant pattern of solar magnetic activity reflecting the oscillatory dynamo mechanism in the Sun’s convection zone.
I. Usoskin +7 more
semanticscholar +1 more source
Deciphering solar magnetic activity: on grand minima in solar activity [PDF]
Frontiers in Astronomy and Space Sciences, 2015 The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood. There has been tremendous progress in the century since the discovery of solar magnetism - magnetism that ultimately ...
McIntosh, Scott W., Leamon, Robert J.
openaire +3 more sources
Solar activity over nine millennia: A consistent multi-proxy reconstruction [PDF]
Astronomy & Astrophysics, 2018 Aims.The solar activity in the past millennia can only be reconstructed from cosmogenic radionuclide proxy records in terrestrial archives. However, because of the diversity of the proxy archives, it is difficult to build a homogeneous reconstruction ...
Chi‐Ju Wu +6 more
semanticscholar +1 more source
NANOFLARE ACTIVITY IN THE SOLAR CHROMOSPHERE [PDF]
The Astrophysical Journal, 2014 We use ground-based images of high spatial and temporal resolution to search for evidence of nanoflare activity in the solar chromosphere. Through close examination of more than 10^9 pixels in the immediate vicinity of an active region, we show that the distributions of observed intensity fluctuations have subtle asymmetries.
Jess, D. B. +2 more
openaire +3 more sources
Proton Fluxes Measured by the PAMELA Experiment from the Minimum to the Maximum Solar Activity for Solar Cycle 24 [PDF]
, 2018 Precise measurements of the time-dependent intensity of the low-energy (
M. Martucci +54 more
semanticscholar +1 more source
Origin of the hemispheric asymmetry of solar activity [PDF]
Astronomy & Astrophysics, 2018 The frequency spectrum of the hemispheric asymmetry of solar activity shows enhanced power for the period ranges around 8.5 years and between 30 and 50 years.
M. Schüssler, R. Cameron
semanticscholar +1 more source
Major Δ14C excursions during the late glacial and early Holocene: changes in ocean ventilation or solar forcing of climate change? [PDF]
, 2003 The atmospheric 14C record during the Late Glacial and the early Holocene shows sharp increases simultaneous with cold climatic phases. These increases in the atmospheric 14C content are usually explained as the effect of reduced oceanic CO2 ventilation ...
Geel, B. van +9 more
core +1 more source
Solar Activity and Solar Oscillations [PDF]
Symposium - International Astronomical Union, 1997 Helioseismology provides us with the tools to probe solar activity. So that we can consider how the solar oscillations are influenced by that activity, we first consider the phenomena that we associate with the active Sun. The surface of the Sun is not quiet but shows evidence of convection on a wide range of scales from a few hundred kilometres ...
openaire +1 more source