Showing 161 - 180 results of 273 for search '"Solar Dynamics Observatory"', query time: 0.75s Refine Results
  1. 161

    Origin of Quasi-periodic Pulsation at the Base of a Kink-unstable Jet by Sudheer K. Mishra, Kartika Sangal, Pradeep Kayshap, Petr Jelínek, A. K. Srivastava, S. P. Rajaguru

    Published 2023-01-01
    “…We studied a blowout jet that occurred at the west limb of the Sun on 2014 August 29 using high-resolution imaging/spectroscopic observations provided by the Solar Dynamics Observatory/Atmospheric Imaging Assembly and the Interface Region Imaging Spectrograph. …”
    Get full text
    Article
  2. 162

    Exploring Spatial and Temporal Patterns in the Debrecen Solar Faculae Database: Part II by Marianna B. Korsós, Anett Elek, Francesca Zuccarello, Robertus Erdélyi

    Published 2024-01-01
    “…In this study, utilizing data from the Solar Dynamics Observatory/Helioseismic and Magnetic Imager–Debrecen Faculae Data Catalogue, we investigated solar facula distribution over timescales much larger than the individual lifetimes of faculae. …”
    Get full text
    Article
  3. 163

    Exploiting Laboratory and Heliophysics Plasma Synergies by Jill Dahlburg, William Amatucci, Michael Brown, Vincent Chan, James Chen, Christopher Cothran, Damien Chua, Russell Dahlburg, George Doschek, Jan Egedal, Cary Forest, Russell Howard, Joseph Huba, Yuan-Kuen Ko, Jonathan Krall, J. Martin Laming, Robert Lin, Mark Linton, Vyacheslav Lukin, Ronald Murphy, Cara Rakowski, Dennis Socker, Allan Tylka, Angelos Vourlidas, Harry Warren, Brian Wood

    Published 2010-05-01
    “…Heliospheric observations reviewed include the Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) on the National Aeronautics and Space Administration (NASA) Solar Terrestrial Relations Observatory (STEREO) mission, the first instrument to provide remote sensing imagery observations with spatial continuity extending from the Sun to the Earth, and the Extreme-ultraviolet Imaging Spectrometer (EIS) on the Japanese Hinode spacecraft that is measuring spectroscopically physical parameters of the solar atmosphere towards obtaining plasma temperatures, densities, and mass motions. The Solar Dynamics Observatory (SDO) and the upcoming Solar Orbiter with the Heliospheric Imager (SoloHI) on-board will also be discussed. …”
    Get full text
    Article
  4. 164

    Enhanced Three-minute Oscillation above a Sunspot during a Solar Flare by Ya Wang, Lyndsay Fletcher, Sargam Mulay, Haisheng Ji, Wenda Cao

    Published 2024-01-01
    “…An analysis of this oscillation was carried out using simultaneous ground-based observations from the Goode Solar Telescope at the Big Bear Solar Observatory and space-based observations from the Solar Dynamics Observatory. A frequency shift was observed before and after the flare, with the running penumbral wave that was present with a period of about 200 s before the flare coexisting with a strengthened oscillation with a period of 180 s at the same locations after the flare. …”
    Get full text
    Article
  5. 165

    The Initiation and Back-reaction of the X5.4 Flare on 2012 March 7 by Nian Liu, Ju Jing, Qiang Hu, Satoshi Inoue, Haimin Wang

    Published 2023-01-01
    “…To help our study, three-dimensional (3D) coronal magnetic field models are extrapolated from the photospheric magnetograms of the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory under the assumptions of nonlinear force-free field (NLFFF) and non-force-free field (non-FFF). …”
    Get full text
    Article
  6. 166

    Magnetic Fields and Plasma Heating in the Sun’s Atmosphere by P. Judge, L. Kleint, R. Casini, A. G. de Wijn, T. Schad, A. Tritschler

    Published 2024-01-01
    “…Data from the Solar Dynamics Observatory and Interface Region Imaging Spectrograph are combined to ask: Why is only a fraction of emerging flux filled with heated plasma? …”
    Get full text
    Article
  7. 167

    The 2013 November 12 Solar Energetic Electron Event Associated with Solar Jets by Wen Wang, Andrea Francesco Battaglia, Säm Krucker, Linghua Wang

    Published 2023-01-01
    “…We investigate the hard X-ray (HXR) flare-associated “prompt” solar energetic electron (SEE) 2013 November 12 event with joint EUV jet observations from Solar Dynamics Observatory/Atmospheric Imaging Assembly and STEREO-A/EUVI. …”
    Get full text
    Article
  8. 168

    Simulation of a Solar Jet Formed from an Untwisting Flux Rope Interacting with a Null Point by Jiahao Zhu, Yang Guo, Mingde Ding, Brigitte Schmieder

    Published 2023-01-01
    “…Using multiwavelength observations from the Solar Dynamics Observatory/Atmospheric Imaging Assembly and a magnetogram from Hinode/Spectro-Polarimeter (Hinode/SP), we study the formation and evolution of a jet occurring on 2019 March 22 in NOAA Active Region 12736. …”
    Get full text
    Article
  9. 169

    Three-day Forecasting of Solar Wind Speed Using SDO/AIA Extreme-ultraviolet Images by a Deep-learning Model by Jihyeon Son, Suk-Kyung Sung, Yong-Jae Moon, Harim Lee, Hyun-Jin Jeong

    Published 2023-01-01
    “…For this we use Solar Dynamics Observatory/Atmospheric Imaging Assembly 211 and 193 Å images together with solar wind speeds for the last 5 days as input data. …”
    Get full text
    Article
  10. 170

    Magnetic Field Evolution of the Solar Active Region 13664 by Robert Jarolim, Astrid M. Veronig, Stefan Purkhart, Peijin Zhang, Matthias Rempel

    Published 2024-01-01
    “…We extrapolate vector magnetograms from the Solar Dynamics Observatory’s Helioseismic and Magnetic Imager at the full 12 minute cadence from 2024 May 5 00:00 to 11 04:36 UT, in order to understand the AR’s magnetic evolution and the large eruptions it produced. …”
    Get full text
    Article
  11. 171

    Rotation and Confined Eruption of a Double Flux-rope System by X. M. Zhang, J. H. Guo, Y. Guo, M. D. Ding, Rony Keppens

    Published 2024-01-01
    “…We perform a data-constrained simulation with the zero- β assumption to study the mechanisms of strong rotation and failed eruption of a filament in active region 11474 on 2012 May 5 observed by Solar Dynamics Observatory and Solar Terrestrial Relations Observatory. …”
    Get full text
    Article
  12. 172

    Solar Wind Modeling with the Alfvén Wave Solar atmosphere Model Driven by HMI-based Near-real-time Maps by the National Solar Observatory by Nishtha Sachdeva, Ward B. Manchester IV, Igor Sokolov, Zhenguang Huang, Alexander Pevtsov, Luca Bertello, Alexei A. Pevtsov, Gabor Toth, Bart van der Holst, Carl J. Henney

    Published 2023-01-01
    “…These maps, produced by assimilating data from the Helioseismic Magnetic Imager (HMI) on board the Solar Dynamics Observatory, use a different method developed at the National Solar Observatory (NSO) to provide a near contemporaneous source of data to drive numerical models. …”
    Get full text
    Article
  13. 173

    Internal Activities in a Solar Filament and Heating in Its Threads by Hengyuan Wei, Zhenghua Huang, Chuan Li, Zhenyong Hou, Ye Qiu, Hui Fu, Xianyong Bai, Lidong Xia

    Published 2023-01-01
    “…Using data from the Chinese H α Solar Explorer, the Solar Upper Transition Region Imager, and the Solar Dynamics Observatory, we report on multiwavelength imaging and spectral observations of the activation of a small filament. …”
    Get full text
    Article
  14. 174

    Stealth Non-standard-model Confined Flare Eruptions: Sudden Reconnection Events in Ostensibly Inert Magnetic Arches from Sunspots by Ronald L. Moore, Sanjiv K. Tiwari, Navdeep K. Panesar, V. Aparna, Alphonse C. Sterling

    Published 2024-01-01
    “…We tracked each eruption in full-cadence UV and EUV images from the Atmospheric Imaging Assembly of Solar Dynamics Observatory (SDO) in combination with magnetograms from SDO’s Helioseismic and Magnetic Imager. …”
    Get full text
    Article
  15. 175

    Image Super-resolution Methods for FY-3E X-EUVI 195 Å Solar Images by Qinglin Yang, Zhou Chen, Rongxin Tang, Xiaohua Deng, Jinsong Wang

    Published 2023-01-01
    “…Instruments on different satellites differ in observation time, angle, and resolution, so we selected Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA) 193 Å images with similar wavelengths as a reference and used a feature-based method for image registration to eliminate slight deformations to build training data sets. …”
    Get full text
    Article
  16. 176

    Sequential Remote Brightenings and Co-spatial Fast Downflows during Two Successive Flares by B. T. Wang, X. Cheng, C. Li, J. Chen, M. D. Ding

    Published 2023-01-01
    “…In this study, we report imaging and spectroscopic observations of sequential remote brightenings with a combination of observations from the H α Imaging Spectrograph on board the Chinese H α Solar Explorer, which is the first space-based solar telescope of China, and from the Solar Dynamics Observatory. It is found that during two successive M-class flares occurring on 2022 August 17 multiple ribbon-like brightenings appeared in sequence away from the flaring active region. …”
    Get full text
    Article
  17. 177

    A Bias-free Deep Learning Approach for Automated Sunspot Segmentation by Jing Chen, Norbert G. Gyenge, Ye Jiang, Robertus Erdélyi, Jiajia Liu, Yimin Wang

    Published 2025-01-01
    “…Utilizing observations of the Solar Dynamics Observatory, we leverage active-region data from the Helioseismic Magnetic Imager active-region patches to locate sunspot groups detected between 2011 and 2023. …”
    Get full text
    Article
  18. 178

    Locating Heating Channels of the Solar Corona in a Plage Region with the Aid of High-resolution 10830 Å Filtergrams by Parida Hashim, Fangyu Xu, Ya Wang, Weijie Meng, Jinhua Shen, Yingna Su, Jianping Li, Zhenyu Jin, Haisheng Ji

    Published 2024-01-01
    “…With well-aligned, nearly simultaneous data from multiple channels of the Atmospheric Imaging Assembly and the continuum of the Helioseismic and Magnetic Imager on board Solar Dynamics Observatory, we compare the EUV/UV emissions, emission measure, mean temperature, and continuum intensity in the two kinds of regions. …”
    Get full text
    Article
  19. 179

    Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production by Yadan Duan, Hui Tian, Hechao Chen, Yuandeng Shen, Zheng Sun, Zhenyong Hou, Chuan Li

    Published 2024-01-01
    “…Using the Chinese H α Solar Explorer (CHASE) and the Solar Dynamics Observatory, we present a case study on the complete buildup of fan-spine topology driven by flux emergence and the subsequent jet production. …”
    Get full text
    Article
  20. 180

    The Role of Magnetic Shear in Reconnection-driven Flare Energy Release by J. Qiu, M. Alaoui, S. K. Antiochos, J. T. Dahlin, M. Swisdak, J. F. Drake, A. Robison, C. R. DeVore, V. M. Uritsky

    Published 2023-01-01
    “…Using observations from the Solar Dynamics Observatory’s Atmosphere Imaging Assembly and the Ramaty High Energy Solar Spectroscopic Imager, we present novel measurements of the shear of post-reconnection flare loops (PRFLs) in SOL20141218T21:40 and study its evolution with respect to magnetic reconnection and flare emission. …”
    Get full text
    Article