Results 121 to 130 of about 18,154 (212)

Study of non-thermal photon production under different scenarios in solar flares. 2: The Compton inverse and Bremsstrahlung models and fittings [PDF]

Energy spectra of photons emitted from Bremsstrahlung (BR) of energetic electrons with matter, is obtained from the deconvolution of the electron energy spectra.
Alvarez, M., Gallegos, A., Laville, A., Perez-Peraza, J.   +3 more
core   +1 more source

In-depth Analysis of the 2022 March 28 3He-rich Solar Energetic Particle Event

The Astrophysical Journal
On 2022 March 28, a solar eruption from active region AR 12975 produced a solar energetic particle (SEP) event observed by BepiColombo (BC; 0.57 au), STEREO-A (STA; 0.97 au), GOES (1.0 au), ACE (L1), and Wind (L1).
Mirko Stumpo, Monica Laurenza, Simone Benella, Anna Milillo, Christina Plainaki, Matthew J. West, Pietro Zucca, Stas Barabash, Daniel Heyner, Ali Varsani, Go Murakami, Shyama Narendranath, Alessandro Aronica, H. U. Auster, Lorenzo Biasiotti, Alessandro Brin, Luca Colasanti, D. Constantinescu, Elisabetta De Angelis, Pier Paolo Di Bartolomeo, D. Fischer, Stavro Ivanovski, Harald Jeszenszky, Adrian Kazakov, Gunter Laky, Valeria Mangano, Stefano Massetti, Martina Moroni, Alessandro Mura, Livio Narici, Hans Nilsson, Raffaella Noschese, Stefano Orsini, Grace Richards, I. Richter, Rosanna Rispoli, Beatriz Sanchez-Cano, Roberto Sordini, Srikar P. Tadepalli, Nello Vertolli, Martin Wieser, Hayley Williamson   +41 more
doaj   +1 more source

Signatures of Confined and Eruptive Solar Flares in Microwave Spectra

The Astrophysical Journal
Abstract We describe how microwave spectra of confined flares differ from those of eruptive flares. All 29 confined ≥M1.4 soft X-ray flares from NOAA Active Region 12192 in 2014 October that were observed by the Radio Solar Telescope Network in the >300 MHz microwave range (encompassing RSTN frequencies from ...
E. W. Cliver, M. Kazachenko, H. S. Hudson, T. Alberti, M. Laurenza, S. M. White, P. T. Gallagher   +6 more
openaire   +1 more source

The Temperature and Density of a Solar Flare Kernel Measured from Extreme-ultraviolet Lines of O iv

The Astrophysical Journal
Previously unexplored diagnostics of O iv in the extreme-ultraviolet region 260–280 Å are used to derive a temperature and density for a solar flare kernel observed on 2012 March 9 with the Extreme-ultraviolet Imaging Spectrometer on the Hinode satellite.
Peter R. Young
doaj   +1 more source

Measuring the magnetic fields in the chromospheres of low-mass stars. [PDF]

Nat Commun
Cang T, Petit P, Donati JF, Tian H, Fu J, Li H, Bellotti S, Hu X, Ma X, Lopez Ariste A, Xing K, Morin J, Lu H, Zong W.   +13 more
europepmc   +2 more sources

Spectroscopic Analysis and RHD Modeling of the First Ca II H and H ϵ Flare Spectra from DKIST/ViSP. [PDF]

Sol Phys
Tamburri C, Kowalski A, Cauzzi G, Kazachenko M, Tritschler A, Yadav R, French R, Notsu Y, Reardon K, Tristan I.   +9 more
europepmc   +1 more source

Correlation between active regions' spectra at high radio frequencies and solar flare occurrences. [PDF]

Sci Rep
Mulas S, Pellizzoni A, Marongiu M, Marcucci A, Righini S, Iacolina MN, Egron E, Murtas G, Bachetti M, Berrilli F, Cabras A, Caocci R, Deiana GL, Guglielmino SL, Haggerty C, Ladu A, Loru S, Maccaferri A, Marongiu P, Melis A, Navarrini A, Orfei A, Ortu P, Pili M, Pisanu T, Pupillo G, Saba A, Schirru L, Serra G, Tiburzi C, Valente G, Zanichelli A, Zucca P, Messerotti M.   +33 more
europepmc   +1 more source

Spatial variation of energy transport mechanisms within solar flare ribbons. [PDF]

Nat Astron
Kerr GS, Krucker S, Allred JC, Rodríguez-Gómez JM, Inglis AR, Ryan DF, Hayes LA, Milligan RO, Kowalski AF, Plowman JE, Young PR, Kucera TA, Brosius JW.   +12 more
europepmc   +1 more source

Eruption-Related Ultraviolet Irradiance Enhancements Associated with Flares. [PDF]

Sol Phys
Majury L, Dominique M, Milligan R, Talpeanu DC, Dammasch I, Berghmans D.   +5 more
europepmc   +1 more source

A new era in solar system astronomy with JWST. [PDF]

Nat Commun, 2023
Villanueva GL, Milam SN.
europepmc   +1 more source