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51 results for “solar flare”
First global machine learning model to predict solar flare impact on Earth's ionosphere
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Additional material for the study " Solar flare effects observed over Mexico during March 30-31, 2022."
<p>Maps of sub-ionospheric points over Mexico for the flare periods on March 30, 2022 and March 31, 2022. Deviations of dI(10-20) are represented by color of each point respectively. The videos are made with use of SIMuRG tool which is described in the following article: Yasyukevich, Y.V., Kiselev, A.V., Zhivetiev, I.V. et al. SIMuRG: System for Ionosphere Monitoring and Research from GNSS. GPS Solut 24, 69 (2020).</p>
Data for "Scaling of electron heating by magnetization during reconnection and applications to dipolarization fronts and super-hot solar flares"
<p>Dataset for the figures used in the paper</p>
Cold Solar Flares I. Microwave Domain Appendix
<p>We present the appendix of the statistical analysis of ~100 solar flares with prominent electron acceleration, ``cold'' flares, in the microwave range.<br> These cold flares are characterized by a weak thermal response relative to nonthermal emission.<br> This work is a follow up of a previous statistical study of cold flares, which focused on hard X-ray emission to quantify the flare nonthermal component. Here we focus on the microwave emission.<br> Thermal response is evaluated by soft X-ray emission observed by GOES X-ray sensors.<br> We obtain spectral parameters of the flare gyrosynchrotron emission and reveal patterns of their temporal evolution.<br> Main results of the previous statistical study are confirmed: as compared to a ``mean'' flare, the cold flares have shorter durations, higher spectral peak frequencies, and harder spectral indices after the spectral peak.<br> Though, there are cold flares with moderate and low peak frequencies.<br> In a majority of cold flares, we find evidence in favor of Razin effect in the microwave spectra indicative of rather dense flaring loops.<br> We discuss obtained results in the context of electron acceleration efficiency.</p> <p> </p> <p>Appendix contains figures and tables with temporal and spectral characteristics of all cold flares analyzed in this work.<br> Figures present microwave dynamic spectra, time profiles in soft X-ray range and temporal evolution of gyrosynchrotron spectral parameters.<br> Tables contain quantifications of the flare microwave and soft X-ray emission, the beginning and the end of the flare impulsive phase, flare helioprojective coordinates, obtained patterns of parameter temporal evolution.</p> <p> </p>
STET modeling output files for 2017 Sept solar flare study at Mars
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Supporting data for 2019SW002408: Detection of VLF attenuation in the Earth-ionosphere waveguide caused by X-class solar flares using a global lightning location network
<p>This folder contains data from the World Wide Lightning Location Network (WWLLN) used in the paper "<strong>Detection of VLF attenuation in the Earth-ionosphere waveguide caused by X-class solar flares using a global lightning location network</strong>". </p> <p>Contents:</p> <p>1. readme_2019SW002408.pdf: A detailed explanation of the data files in this folder</p> <p>2. station_list_20170906-10.csv: A table of WWLLN stations used in this analysis</p> <p>3. stroke-station_20170906.csv: A list of lightning strokes detected by WWLLN, and the stations detecting each stroke, for the day September 6, 2017.</p> <p>4. stroke-station_20170910.csv: A list of lightning strokes detected by WWLLN, and the stations detecting each stroke, for the day September 10, 2017.</p>
Solar flare and radio burst effects on GNSS signals and the ionosphere during September 2017
<p>Belém and Petrolina magnetometer data for September 6 and 7, 2017.</p>
From solar to stellar flare characteristics. On a new peak size distribution for G-, K-, and M-dwarf star flares
<p>This dataset contains additional material for the research paper "From solar to stellar flare characteristics. On a new peak size distribution for G-, K-, and M-dwarf star flares", Astron. Astrophys., 2018.</p> <p>Based on the flare list available at http://156.17.94.1/sphinx_l1_catalogue/SphinX_cat_main.html, here peak X-ray flare intensities of Q- to C-class flares measured by the SphinX instrument (see, e.g., Kotov, 2011; Sylvester et al., 2011, 2012; Gburek et al., 2011a,b, 2013; Gryciuk et al., 2017) during the solar minimum of <strong>2009</strong> and their corresponding GOES E > 10 MeV peak proton fluxes are given.</p> <p><br> Column 1: Month<br> Column 2: Day<br> Column 3: X-ray flux peak hour<br> Column 4: X-ray flux peak minute<br> Column 5: X-ray flare peak intensity (W/m<sup>2</sup>)<br> Column 5: GOES E > 10 MeV peak proton flux (pfu)<br> Column 6: Flare location (according to the SphinX-database)</p>
Gamma-Ray Imager Polarimeter for Solar Flares Project
<p> We propose here to develop the <em>Gamma-Ray Imager/Polarimeter for Solar flares </em>(<em>GRIPS</em>), the next-generation instrument for high-energy solar observations. <em>GRIPS </em>will provide a nearoptimal combination of high-resolution imaging, spectroscopy, and polarimetry of solar-flare gamma-ray/hard X-ray emissions from ~20 keV to &gt;~10 MeV (see Table 1). The key new technology (already developed for non-solar astrophysics by collaborator Steven Boggs) is that of a 3D position-sensitive germanium detector (3D-GeD) that allows the position and energy deposition of every photon interaction to be recorded individually, even within the same detector. With the 3D-GeDs, <em>GRIPS </em>can use a new single-grid imaging system, called the Multi- Pitch Rotating Modulator (MPRM), that provides a near-ideal point response function with twice the throughput per cm2 of detector area compared to the rotating modulation collimator (RMC) imaging of <em>RHESSI</em>. In addition, since Compton scattering (the dominant interaction at &gt;~150 keV) of the incident photons can be tracked by the 3D-GeDs, much of the background can be rejected and the polarization of photons can be determined.</p> <p> The proposed balloon-borne <em>GRIPS </em>consists of a Spectrometer/Polarimeter with sixteen 3DGeDs in four stacked 2_2 planes, together with a single rotating MPRM grid placed 8 meters away, to provide a full-Sun field-of-view and angular resolution (12.5-arcsec FWHM at gamma ray energies) sufficient to separate the footpoints of 2.2 MeV sources for almost all flares.</p> <p> The spacecraft-borne version of <em>GRIPS </em>is envisioned to have sixty-four 3D-GeDs in four stacked 4_4 planes, together with a single grid ~20 meters away, in a spinning spacecraft. Such a space <em>GRIPS </em>would provide a tremendous leap forward for high-energy solar physics, with order of magnitude increases in effective area for gamma-ray line (and hard X-ray) imaging, and much better angular resolution and image quality (see Table 1). A space <em>GRIPS </em>will allow the 0.511 MeV positron-annihilation line and the weaker prompt nuclear de-excitation lines to be imaged for the first time. Together with line shifts and shapes from the simultaneous high-resolution spectroscopy, such an instrument will provide powerful new diagnostics of the flare energy release and particle acceleration process. Furthermore, precise polarization measurements would be obtained for the first time to constrain models and determine beaming of energetic electrons.</p>
GBM Solar Flare List
Autonomous flare finder identifies all flares ≥ GOES C-Class detected by GBM above 10 keV. (FITS file)
Fermi Solar Flare X-Ray and Gamma-Ray Observations
The Fermi Gamma-ray Space Telescope was launched in June 2008 to explore high-energy phenomena in the Universe. This GI program is targeted specifically at Fermi observations of high-energy solar phenomena, primarily solar flares. We provide quicklook products, data archives, and analysis software covering the solar X-ray and gamma-ray observations of both the Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT), with the objective of facilitating and encouraging the broad use of Fermi data by the international solar physics community.
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.