Results 1 to 10 of about 20,265 (219)

RADIO EMISSION FROM ACCELERATION SITES OF SOLAR FLARES [PDF]

The Astrophysical Journal, 2009
ApJL, in ...
Li, Yixuan, Fleishman, Gregory D.
openaire   +3 more sources

Operational prediction of solar flares using a transformer-based framework [PDF]

Scientific Reports, 2023
Solar flares are explosions on the Sun. They happen when energy stored in magnetic fields around solar active regions (ARs) is suddenly released. Solar flares and accompanied coronal mass ejections are sources of space weather, which negatively affects a
Yasser Abduallah, Jason T. L. Wang, Haimin Wang, Yan Xu   +3 more
doaj   +2 more sources

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

Scientific Reports
High radio frequencies observations with the Italian network of large single-dish radio telescopes resulted in $$\sim$$ 450 solar images between 2018 and 2023 in K-band frequency range (18–26 GHz).
Sara Mulas, Alberto Pellizzoni, Marco Marongiu, Adriana Marcucci, Simona Righini, Maria Noemi Iacolina, Elise Egron, Giulia Murtas, Matteo Bachetti, Francesco Berrilli, Alessandro Cabras, Roberto Caocci, Gian Luigi Deiana, Salvatore Luigi Guglielmino, Colby Haggerty, Adelaide Ladu, Sara Loru, Andrea Maccaferri, Pasqualino Marongiu, Andrea Melis, Alessandro Navarrini, Alessandro Orfei, Pierluigi Ortu, Mauro Pili, Tonino Pisanu, Giuseppe Pupillo, Andrea Saba, Luca Schirru, Giampaolo Serra, Caterina Tiburzi, Giuseppe Valente, Alessandra Zanichelli, Pietro Zucca, Mauro Messerotti   +33 more
doaj   +2 more sources

Space weather study through analysis of solar radio bursts detected by a single-station CALLISTO spectrometer [PDF]

Annales Geophysicae, 2021
This article summarises the results of an analysis of solar radio bursts (SRBs) detected by the Compound Astronomical Low-cost Low-frequency Instrument for Spectroscopy and Transportable Observatory (CALLISTO) spectrometer hosted by the University of ...
T. Ndacyayisenga, A. C. Umuhire, J. Uwamahoro, C. Monstein   +3 more
doaj   +1 more source

Are There Radio-quiet Solar Flares? [PDF]

Solar Physics, 2007
ISSN:0038 ...
Benz, Arnold, Brajša, Roman, Magdalenić, Jasmina   +2 more
openaire   +8 more sources

Investigation of the Sudden Solar Ionospheric Disturbance using Radio Telescope [PDF]

EPJ Web of Conferences, 2020
Low-frequency radio telescopes are cheap and useful devices for the investigation of terrestrial and extra-terrestrial emissions. These emissions come either from the Sun and the planet Jupiter to terrestrial emissions.
Aqasha Adam, Zheng Andrien, Athreya Sneha, Tan Hoe Teck   +3 more
doaj   +1 more source

Investigating the effect of large solar flares on the ionosphere based on novel Digisonde data comparing three different methods

Frontiers in Astronomy and Space Sciences, 2023
Increased solar radiation during solar flare events can cause additional ionization and enhanced absorption of the electromagnetic (EM) waves in the ionosphere leading to partial or even total radio fade-outs.
Attila Buzás, Attila Buzás, Attila Buzás, Daniel Kouba, Jens Mielich, Dalia Burešová, Zbyšek Mošna, Petra Koucká Knížová, Veronika Barta   +8 more
doaj   +1 more source

M-Class Solar Flares in Solar Cycles 23 and 24: Properties and Space Weather Relevance

Universe, 2022
A comprehensive statistical analysis on the properties and accompanied phenomena of all M-class solar flares (as measured in soft X-rays) in the last two solar cycles (1996–2019) is presented here with a focus on their space weather potential.
Rositsa Miteva, Susan W. Samwel
doaj   +1 more source

Validation of the SMOS Mission for Space Weather Operations: The Potential of Near Real‐Time Solar Observation at 1.4 GHz

Space Weather, 2021
Soil Moisture and Ocean Salinity (SMOS) is an ESA mission observing Earth at 1.4 GHz with full polarimetry. SMOS images are affected by a noise of solar origin produced by the Sun appearing in the antenna's field of view.
M. Flores‐Soriano, C. Cid, R. Crapolicchio   +2 more
doaj   +1 more source

Detection of Solar Flares from the Analysis of Signal-to-Noise Ratio Recorded by Digisonde at Mid-Latitudes

Remote Sensing, 2022
This work proposes a new indirect method to detect the impact of solar flares on ionospheric sounding measurements, i.e., on the signal-to-noise ratio of ionospheric reflected radio signals. The method allows us to detect and characterize the ionospheric
Victor de Paula, Antoni Segarra, David Altadill, Juan José Curto, Estefania Blanch   +4 more
doaj   +1 more source