Results 131 to 140 of about 995 (183)

On the Instrumental Discrepancies in Lyman-Alpha Observations of Solar Flares. [PDF]

Sol Phys
Greatorex HJ, Milligan RO, Dammasch IE.
europepmc   +1 more source

Outstanding Questions and Future Research on Magnetic Reconnection. [PDF]

Space Sci Rev
Nakamura R, Burch JL, Birn J, Chen LJ, Graham DB, Guo F, Hwang KJ, Ji H, Khotyaintsev YV, Liu YH, Oka M, Payne D, Sitnov MI, Swisdak M, Zenitani S, Drake JF, Fuselier SA, Genestreti KJ, Gershman DJ, Hasegawa H, Hoshino M, Norgren C, Shay MA, Shuster JR, Stawarz JE.   +24 more
europepmc   +1 more source

Exploring the relationship between space weather conditions and power performance of EgyptSat-1 using machine learning. [PDF]

Sci Rep
Elfiky D, Ali MAB, Mostafa MS, Hesham N, Ahmed AM, Ibrahim SK.   +5 more
europepmc   +1 more source

Magnetic star-planet interaction in the young exoplanet system DS Tucanae Ab

Santos Ld, Owen J, Duvvuri G, Loyd ROP, Vidotto A, Presa A, Bourrier V, King G, Airapetian V, Ehrenreich D, France K, Lendl M, Lothringer J, Nielsen L.   +13 more
europepmc   +1 more source

Hot X-ray onsets of solar flares [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT The study of the localized plasma conditions before the impulsive phase of a solar flare can help us understand the physical processes that occur leading up to the main flare energy release. Here, we present evidence of a hot X-ray ‘onset’ interval of enhanced isothermal plasma temperatures in the range of 10–15 MK over a period
Hugh Hudson, Lyndsay Fletcher, Paulo J A Simões   +2 more
exaly   +6 more sources

Soft X-Ray Pulsations in Solar Flares [PDF]

Solar Physics, 2015
15 pages, 7 ...
Hugh Hudson, Lyndsay Fletcher, Paulo J A Simões   +2 more
exaly   +3 more sources

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Hard X-Ray Imaging of Solar Flares

2022
The idea for this text emerged over several years as the authors participated in research projects related to analysis of data from NASA's RHESSI Small Explorer mission. The data produced over the operational lifetime of this mission inspired many investigations related to a specific science question: the when, where, and how of electron acceleration ...
Piana M., Emslie A. G., Massone A. M., Dennis B. R.   +3 more
openaire   +1 more source

Periodic Solar Flare X-ray Emission

Nature, 1971
GLENCROSS1 has reported the observation of an apparent 6 min periodicity during X-ray flares observed in the 0.1 to 0.3 nm wavelength band. The detector was a soft X-ray sensor on the satellite OSO-IV launch in 1967. The observed flare profiles were examined in more than thirty X-ray events coincident with visible flares, and a histogram was ...
P E, Fehlau, W H, Chambers, J C, Fuller, W E, Kunz, R W, Milkey, N K, Blocker   +5 more
openaire   +2 more sources

Statistical properties of soft X-ray solar flares

AIP Conference Proceedings, 2003
We investigate some statistical properties of soft X‐ray bursts produced by solar flares. The Probability Density Functions (PDFS) of soft X‐ray intensity fluctuations are shown to display wide, non‐gaussian tails. The shape of the PDFs is nearly unchanged as the timelag, used to calculate fluctuations, varies. A very similar behavior is found for PDFs
LEPRETI, Fabio, CARBONE, Vincenzo, VELTRI P, GIULIANI P.   +3 more
openaire   +2 more sources

Fast Transients in Hard X-ray Solar Flares

Solar Physics, 1983
We present the results of a search for fast spikes in 5483 hard X-ray solar flares as observed with the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission (SMM). Hundreds of fast spikes with durations of less than 1 second have been detected at time resolutions of 128 ms and 10 ms.
Alan L. Kiplinger, B. R. Dennis, A. Gordon Emslie, K. J. Frost, L. E. Orwig   +4 more
openaire   +1 more source