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Related papers: STEREO/EUVI Event Catalog 2006-2012

200 papers

We report the Astrorivelatore Gamma ad Immagini LEggero (AGILE) observations of solar flares, detected by the on board anticoincidence system in the 80-200 keV energy range, from 2007 May 1st to 2022 August 31st. In more than 15 yr, AGILE…

Solar flares are a major driver of hazardous space weather, whose intense electromagnetic emissions and energetic particles can significantly disturb the near-Earth space environment. Therefore, understanding the physical processes during a…

Solar and Stellar Astrophysics · Physics 2026-02-25 Shihan Li , Jinhan Guo , Wensi Wang , Yu Dai , Brigitte Schmieder , Jaroslav DudÍk , Yang Guo , Mingde Ding

Astrophysical flares are one of the possible prominent source classes of ultra-high-energy (UHE, $E > 10^{17}$ eV) cosmic rays, which can be detected by recording clusters of extensive air showers in arrays of detectors. The search for…

High Energy Astrophysical Phenomena · Physics 2025-10-01 Jaroslaw Stasielak , Chaitanya Priyadarshi , Dariusz Góra , Nataliia Borodai , Marcus Niechciol , Jan Pękala

Context. The remote observations of solar flare ion acceleration are rather limited. There are theoretical predictions for signatures of ion acceleration in EUV line profiles. Previous tests involve observations of flares with no evidence…

Solar and Stellar Astrophysics · Physics 2018-09-19 R. Bucik , A. Fludra , R. Gomez-Herrero , D. E. Innes , B. Kellett , R. Kumar , S. Mackovjak

Temporally-resolved electron density measurements of solar flare plasmas are presented using data from the EUV Variability Experiment (EVE) onboard the Solar Dynamics Observatory (SDO). The EVE spectral range contains emission lines formed…

Solar and Stellar Astrophysics · Physics 2015-06-05 Ryan O. Milligan , Michael B. Kennedy , Mihalis Mathioudakis , Francis P. Keenan

Universal small-scale solar activity in quiet region are suggested to be a potential source of solar wind and the upper solar atmosphere. Here, with the high-resoltion 174 \AA~imaging observations from the Solar Orbiter/Extreme Ultraviolet…

Solar and Stellar Astrophysics · Physics 2024-12-19 Yadan Duan , Hechao Chen , Zhenyong Hou , Zheng Sun , Yuandeng Shen

Based on energetic particle observations made at $\approx$1 AU, we present a catalogue of 46 wide-longitude (>45{\deg}) solar energetic particle (SEP) events detected at multiple locations during 2009-2016. The particle kinetic energies of…

Solar eruptions are the most spectacular events in our solar system and are associated with many different signatures of energy release including solar flares, coronal mass ejections, global waves, radio emission and accelerated particles.…

Solar and Stellar Astrophysics · Physics 2017-12-20 David M. Long , Pearse Murphy , Georgina Graham , Eoin P. Carley , David Pérez-Suárez

Despite a wealth of multi-wavelength, spatially resolved, time-domain solar activity data, an accurate and complete temporo-spatial solar flare census is unavailable, which impedes our understanding of the physics of flare production. We…

Solar and Stellar Astrophysics · Physics 2025-04-25 Jorge R Padial Doble , Kelly Holley-Bockelmann

We search for superflares from 4,068 cool stars in 2+ years of Evryscope photometry, focusing on those with high-cadence data from both Evryscope and TESS. The Evryscope array of small telescopes observed 575 flares from 284 stars, with a…

Solar and Stellar Astrophysics · Physics 2019-08-14 Ward S. Howard , Hank Corbett , Nicholas M. Law , Jeffrey K. Ratzloff , Amy L. Glazier , Octavi Fors , Daniel del Ser , Joshua Haislip

{We report our observations of a swirling flare-related EUV jet on 2011 October 15.} {We utilised the EUV observations from SDO/AIA. We extracted a wide slit along the jet axis and 12 thin slits across its axis to investigate the…

Solar and Stellar Astrophysics · Physics 2015-06-18 Q. M. Zhang , H. S. Ji

Phased flaring, or the periodic occurrence of stellar flares, may probe electromagnetic star-planet interaction (SPI), binary interaction, or magnetic conditions in spots. For the first time, we explore flare periodograms for a large sample…

Solar and Stellar Astrophysics · Physics 2021-10-20 Ward S. Howard , Nicholas M. Law

In this study, new observations and some results of statistical analyses are presented. The largest flare data set of DO Cep in the literature has been obtained with 89 flares detected in 67.61 hours of U-band flare patrol. First of all,…

Solar and Stellar Astrophysics · Physics 2012-06-28 H. A. Dal

X-ray and EUV solar flare emission cause increases in the Earth's dayside ionospheric electron density. While the response of the lower ionosphere to X-rays is well studied, the delay between EUV flare emission and the response of the…

Solar and Stellar Astrophysics · Physics 2025-08-06 Aisling N. O'Hare , Susanna Bekker , Harry J. Greatorex , Ryan O. Milligan

Using ion measurements from Ultra-Low-Energy Isotope Spectrometer (ULEIS) observations onboard Advanced Composition Explorer (ACE) and Solar Isotope Spectrometer (SIS) observations onboard the Solar Terrestrial Observatory (STEREO)-A and…

Solar and Stellar Astrophysics · Physics 2022-11-30 Samuel T. Hart , Maher A. Dayeh , Radoslav Bučík , Mihir I. Desai , Robert W. Ebert , George C. Ho , Gang Li , Glenn M. Mason

The Gamma-ray Burst Monitor (GBM) on board Fermi Gamma-ray Space Telescope has produced the largest database of all-sky observations in gamma rays with its continuous data with high time and energy resolutions. These data contain a wealth…

High Energy Astrophysical Phenomena · Physics 2026-01-19 Yuki Kaneko , Ozge Keskin , Can Gungor , Ersin Gogus , Mete Uzuner , Aslihan M. Unsal

We present here the kinematics of the EUV wave associated with a GOES M1.0-class solar flare, which originates in NOAA AR 12740. The event is thoroughly observed with Atmospheric Imaging Assembly (AIA) onboard Solar Dynamics Observatory…

Solar and Stellar Astrophysics · Physics 2022-04-13 Ramesh Chandra , P. F. Chen , Pooja Devi , Reetika Joshi , Y. W. Ni

We present a flare star catalog from four years of non-targeted millimeter-wave survey data from the South Pole Telescope (SPT). The data were taken with the SPT-3G camera and cover a 1500-square-degree region of the sky from…

The solar eruption on 2012 January 27 resulted in a wide-spread solar energetic particle (SEP) event observed by STEREO A and the near-Earth spacecraft (separated by 108\degree). The event was accompanied by an X-class flare,…

Solar and Stellar Astrophysics · Physics 2018-10-17 Bei Zhu , Ying D. Liu , Ryun-Young Kwon , Rui Wang

\textit{Extreme Ultraviolet Explorer} Deep Survey observations of cool stars (spectral type F to M) have been used to investigate the distribution of coronal flare rates in energy and its relation to activity indicators and rotation…

Astrophysics · Physics 2015-06-24 Marc Audard , Manuel Guedel , Jeremy J. Drake , Vinay L. Kashyap