Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Cliver, Edward"'
Autor:
Hudson, Hugh S., Cliver, Edward. W., Fletcher, Lyndsay, Diver, Declan A., Gallagher, Peter T., Li, Ying, Osborne, Christopher M. J., Stark, Craig, Su, Yang
The geomagnetic "solar flare effect" (SFE) results from excess ionization in the Earth's ionosphere, famously first detected at the time of the Carrington flare in 1859. This indirect detection of a flare constituted one of the first cases of "multim
Externí odkaz:
http://arxiv.org/abs/2407.09233
Autor:
Papaioannou, Athanasios, Herbst, Konstantin, Ramm, Tobias, Cliver, Edward W., Lario, David, Veronig, Astrid M.
Publikováno v:
A&A 671, A66 (2023)
Aims The possible influence of solar superflares on the near-Earth space radiation environment are assessed through the investigation of scaling laws between the peak proton flux and fluence of Solar Energetic Particle (SEP) events with the solar fla
Externí odkaz:
http://arxiv.org/abs/2211.15312
Publikováno v:
Living Rev Sol Phys 19, 2 (2022)
We trace the evolution of research on extreme solar and solar-terrestrial events from the 1859 Carrington event to the rapid development of the last twenty years. Our focus is on the largest observed/inferred/theoretical cases of sunspot groups, flar
Externí odkaz:
http://arxiv.org/abs/2205.09265
We review recent work on 111 Fe-rich impulsive solar energetic ($\sim$ 3 MeV/nuc) particle (SEP) events observed from 1994 to 2013. Strong elemental abundance enhancements scale with A/Q, the ion mass-to-charge ratio, as (A/Q)$^{\alpha}$, where 2 $<
Externí odkaz:
http://arxiv.org/abs/1509.09260
Publikováno v:
Solar Phys. 290, 1761 (2015)
The steep power-law dependence of element abundance enhancements on the mass-to-charge ratios [A/Q] of the ions in impulsive solar energetic-particle (SEP) events causes these enhancements to reflect the temperature-dependent pattern of Q of the ions
Externí odkaz:
http://arxiv.org/abs/1505.02741
Autor:
Hudson, Hugh S, Cliver, Edward W, Fletcher, Lyndsay, Diver, Declan A, Gallagher, Peter T, Li, Ying, Osborne, Christopher M J, Stark, Craig, Su, Yang
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Aug2024, Vol. 532 Issue 3, p3120-3125, 6p
Publikováno v:
Solar Phys, 289, 4675, 2014
We study event-to-event variations in the abundance enhancements of the elements He through Pb for Fe-rich impulsive solar energetic-particle (SEP) events, and their relationship with properties of associated coronal mass ejections (CMEs) and solar f
Externí odkaz:
http://arxiv.org/abs/1407.7838
Publikováno v:
Space Science Reviews, Vol. 186, p. 35-103 ( Dec. 2014)
Our knowledge of the long-term evolution of solar activity and of its primary modulation, the 11-year cycle, largely depends on a single direct observational record: the visual sunspot counts that retrace the last 4 centuries, since the invention of
Externí odkaz:
http://arxiv.org/abs/1407.3231
Publikováno v:
Solar Phys. 289, 3817, 2014
We study the abundances of the elements He through Pb in Fe-rich impulsive solar energetic-particle (SEP) events with measurable abundances of ions with atomic number Z>2 observed on the Wind spacecraft, and their relationship with coronal mass eject
Externí odkaz:
http://arxiv.org/abs/1404.3322
Autor:
Pevtsov, Alexei A., Bertello, Luca, Tlatov, Andrey G., Kilcik, Ali, Nagovitsyn, Yury A., Cliver, Edward W.
Publikováno v:
Solar Physics, online first, 2013
Measurements from the Mount Wilson Observatory (MWO) are used to study the long-term variations of sunspot field strengths from 1920 to 1958. Following a modified approach similar to that in Pevtsov et al. (2011), for each observing week we select a
Externí odkaz:
http://arxiv.org/abs/1301.5935