Solar Eruption Onset: Where Does the Action Begin?

Slides:

Advertisements

Similar presentations

The Science of Solar B Transient phenomena – this aim covers the wide ranges of explosive phenomena observed on the Sun – from small scale flaring in the.

Advertisements

The flare-CME relationship – determining factors (if any!) Sarah Matthews, Lucie Green, Hilary Magee, Louise Harra & Len Culhane MSSL, University College.

RHESSI observations of LDE flares – extremely long persisting HXR sources Mrozek, T., Kołomański, S., Bąk-Stęślicka, U. Astronomical Institute University.

1 A New Model of Solar Flare Trigger Mechanism Kanya Kusano (Hiroshima University) Collaboration with T.Maeshiro (Hiroshima Univ.) T.Yokoyama (Univ. of.

Bach ground: The correlation between sunspot proper motion and flares has been investigated for a long time (e.g. Antalova, 1965, Gesztelyi, 1984). The.

The Relationship Between CMEs and Post-eruption Arcades Peter T. Gallagher, Chia-Hsien Lin, Claire Raftery, Ryan O. Milligan.

Energy and Helicity Budget of Four Solar Flares and Associated Magnetic Clouds. Maria D. Kazachenko, Richard C. Canfield, Dana Longcope, Jiong Qiu Montana.

CME/Flare Mechanisms Solar “minimum” event this January For use to VSE must be able to predict CME/flare Spiro K. Antiochos Naval Research Laboratory.

Hard X-ray Production in a Failed Filament Eruption David, Alexander, Rui Liu and Holly R., Gilbert 2006 ApJ 653, L719 Related Paper: Ji. H. et al., 2003.

000509EISPDR_SciInvGIs.1 EIS Science Goals: The First Three Months…. Louise Harra Mullard Space Science Laboratory University College London.

What can helicity redistribution in solar eruptions tell us about reconnection in these events? by Brian Welsch, JSPS Fellow (Short-Term ), Space Sciences.

Five Spacecraft Observations of Oppositely Directed Exhaust Jets from a Magnetic Reconnection X-line Extending > 4.3 x 10 6 km in the Solar Wind Gosling.

Coronal Loop Oscillations and Flare Shock Waves H. S. Hudson (UCB/SSL) & A. Warmuth (Astrophysical Institute Potsdam) Coronal loop oscillations: introduction.

Multiwavelength Study of Magnetic Reconnection Associated with Sigmoid Eruption Chang Liu BBSO/NJIT

Soft X-ray observations of global waves Khan-Aurass 2002 Narukage et al Hudson et al

Vincent Surges Advisors: Yingna Su Aad van Ballegooijen Observations and Magnetic Field Modeling of a flare/CME event on 2010 April 8.

Discussion Group B: Progress on Initiation Mechanisms 1. Determine topology of initiating field –Initiate broad observational investigation on filament.

Observations of the failed eruption of the magnetic flux rope – a direct application of the quadrupolar model for a solar flare Tomasz Mrozek Astronomical.

Discussion Summary: Group B –Solar Active Regions And Their Production of Flares and Coronal Mass Ejections Discussion Leaders: George Fisher Hugh Hudson.

Center for Space Environment Modeling Ward Manchester University of Michigan Yuhong Fan High Altitude Observatory SHINE July.

Magnetic Shear in Two-ribbon Solar Flares Yingna Su 1,2 Advisors: Leon Golub 1, Guangli Huang 2 Collaborators: A. A. Van Ballegooijen 1, E. E. Deluca 1,

Coronal Mass Ejections: Models and Their Observational Basis (P.F. Chen Living Rev. Solar Phys.) 张英智中国科学院空间科学与应用研究中心空间天气学国家重点实验室.

The Yohkoh observations of solar flares Hugh Hudson UCB.

Ward Manchester University of Michigan Coupling of the Coronal and Subphotospheric Magnetic Field in Active Regions by Shear Flows Driven by The Lorentz.

IGPP, March Coronal shock waves observed in images H.S. Hudson SSL/UCB.

Coronal Loop Oscillations and Flare Shock Waves H. S. Hudson (UCB/SSL) & A. Warmuth (Astrophysical Institute Potsdam) Coronal loop oscillations: (Fig.

NEWS, RESOURCES, AND MOST RECENT SOLAR WORKING DRAFTS (1) Mauna Loa Solar Observatory Newsletter Feb 2009 (2) Introduction to the Solar and Space Weather.

Working Group E: The Pre-CME Sun - Pre-eruption structure, evolution & energy release - Global issues: helicity, homologous CMEs - Inputs to CME initiation.

Modeling Magnetic Reconnection in a Complex Solar Corona Dana Longcope Montana State University & Institute for Theoretical Physics.

DOPPLER DOPPLER A Space Weather Doppler Imager Mission Concept Exploration Science Objectives What are the most relevant observational signatures of flare,

EUV vs. B-field Comparisons Yingna Su Smithsonian Astrophysical Observatory Coauthours: Leon Golub, Aad Van Ballegooijen, Maurice Gros. HMI/AIA Science.

Stephanie Moats Mentor: Kathy Reeves August 2009 Harvard-Smithsonian Center for Astrophysics.

Magnetic Structures of Active Regions and their Link to Coronal Mass Ejections Vasyl Yurchyshyn, Big Bear Solar Observatory, Big Bear City, CA 92314,

Thomas Zurbuchen University of Michigan The Structure and Sources of the Solar Wind during the Solar Cycle.

Flares in and their associations with CMEs N.V. Nitta, J.P.Wuelser, M. J. Aschwanden, J. R. Lemen (LMSAL), D. M. Zarro (Adnet, Inc.)

Physics 681: Solar Physics and Instrumentation – Lecture 19 Carsten Denker NJIT Physics Department Center for Solar–Terrestrial Research.

A Presentation to the SHINE ’02 Workshop by J.G. Luhmann (August 19, 2002) CME initiation: A zoo not an animal (Images from the on-line CDAW CME catalogue.

Flare Energy Build-Up in a Decaying Active Region Near a Coronal Hole Yingna Su Smithsonian Astrophysical Observatory Collaborators: A. A. van Ballegooijen,

Pre-flare activity of M1.2 flare 김수진 1,2, 문용재 1, 김연한 1, 박영득 1, 김갑성 2 1. Korea Astronomy and Space Science Institute 2. Kyung Hee University.

1 Introduction: Onset of solar flares and coronal mass ejections Yokoyama, T. Dept. Earth & Planetary Science, University of Tokyo Isobe, H. Univ. Tokyo.

ISSI Jan 2009 Early Stages of Eruptions Alphonse C. Sterling 1 NASA/MSFC 1 Currently at JAXA/ISAS, Sagamihara, Japan.

Napa 2008, WG F The Earliest Phases of Solar Eruptions Alphonse C. Sterling 1 NASA/MSFC 1 Currently at JAXA/ISAS, Sagamihara, Japan.

Our Star The Sun. Our Star Our Sun is a star that is at the center of our solar system. The Sun is a hot ball of glowing gasses. Deep inside the core,

KASI Low atmospheric reconnections associated with an eruptive flare Yong-Jae Moon(1), Jongchul Chae(2), Young-Deuk Park(1) 1: Korea Astronomy and.

Solar seminor: 4 Oct (1)Eruption of a multiple-turn helical magnetic flux tube in a large flare : Evidence for external and i ternal reconnection.

XRT and EIS Observations of Reconnection associated Phenomena D. Shiota, H. Isobe, D. H. Brooks, P. F. Chen, and K. Shibata

Direct Spatial Association of an X-Ray Flare with the Eruption of a Solar Quiescent Filament Gordon D. Holman and Adi Foord （２０１５） Solar Seminar on July.

IMAGING AND SPECTOROPIC INVESTIGATIONS OF A SOLAR CORONAL WAVE: PROPERTIES OF THE WAVE FRONT AND ASSOCIATED ERUPTING MATERIAL L OUISE K. HARRA AND A LPHONSE.

太陽雑誌会 2004/2/2 殿岡 TETHER-CUTTING ENERGETICS OF A SOLAR QUIET-REGION PROMINENCE ERUPTION Alphonse C. Sterling1, 2 and Ronald L. Moore NASA Marshall Space.

A Numerical Study of the Breakout Model for Coronal Mass Ejection Initiation P. MacNeice, S.K. Antiochos, A. Phillips, D.S. Spicer, C.R. DeVore, and K.

Shine 2004, A. Sterling CME Eruption Onset Observations: Dimmings Alphonse C. Sterling NASA/MSFC/NSSTC.

Global coronal seismology and EIT waves Istvan Ballai SP 2 RC, University of Sheffield, UK.

Discussion Points for CME Group A. Vourlidas NRL.

Studies on Twisted Magnetic Flux Bundles

Unprecedented NASA solar data on precursors piece together part of the story on solar flare evolution The 2017 total solar eclipse provided an opportunity.

Ward Manchester University of Michigan

The Structure of the HPS

Multiwavelength Study of Solar Flares Chang Liu Big Bear Solar Observatory, NJIT Seminar Day November 2, 2007.

A large-scale darkening observed in EUV and radio emissions

The Sun and the Moon.

Foundations of Physics

Evolution of Flare Ribbons and Energy Release

Direct Observations of the Magnetic Reconnection Site of an Eruption on 2003 November ,ApJ, 622,1251 J. Lin, Y.-K. Ko, L. Sui, J. C. Raymond, G.

Preflare State Rust et al. (1994) 太陽雑誌会.

Foundations of Physics

Evolution of Flare Ribbons and Energy Release

MHD Simulation of Plasmoid-Induced-Reconnection in Solar Flares

Ju Jing, Vasyl B. Yurchyshyn, Guo Yang, Yan Xu, and Haimin Wang

Ron Moore and Alphonse Sterling

Slit and Slot Interchange

Presentation transcript:

Solar Eruption Onset: Where Does the Action Begin? Alphonse C. Sterling UAT/NASA/MSFC/NSSTC/ISAS A. Sterling, Feb 03

Introduction Eruptions on the Sun involve the sudden release of large amounts of energy. Where does the main energy release occur, and where are the key regions that are involved? Two possibilities: Core region only, e.g., Moore & LaBonte, Moore et al. (“tether cutting); Chen; etc. Far from the core also: Uchida (“quadruple model”); Antiochos et al. (“Breakout model”). Objective: Compare Yohkoh and SOHO observations with predictions from Tether Cutting and Breakout models. A. Sterling, Feb 03

Two Theories: Tether cutting. Moore & Labonte (1980); Sturrock (1989); Moore et al. (1997; 2001). Fundamentally bipolar. Energy release via reconnection deep inside the “core field.” Breakout model. Antiochos (1998); Antiochos et al. (1999). Fundamentally multi-polar, with bipole core fields and restraining overlying fields. Earliest energy release via slow reconnection at interface. A. Sterling, Feb 03

(Moore et al. 2001) A. Sterling, Feb 03

Antiochos et al. (1999) A. Sterling, Feb 03

Data: A Slow, Large-Filament Eruption Large-scale, quiet region eruption. Slow evolution (weak fields); can observe eruption in “slow motion.” Test theories using timing studies. Sterling, Moore, & Thompson (2001). A. Sterling, Feb 03

A. Sterling, Feb 03

A. Sterling, Feb 03

Sterling, Moore, Thompson (2001) A. Sterling, Feb 03

A. Sterling, Feb 03

Sterling, Moore, Thompson (2001) A. Sterling, Feb 03

No evidence for tether cutting prior to filament launch (at least, very low EM in EUV). What about Breakout? Look for early far-away activity with dimming images. A. Sterling, Feb 03

A. Sterling, Feb 03

A. Sterling, Feb 03

A. Sterling, Feb 03

A. Sterling, Feb 03

Summary for This Event Quadruple, or quadrupole, structure Tether Cutting seems to not work. Might be consistent with Breakout. A. Sterling, Feb 03

General Summary (Solar-B) In at least some cases, the action begins far away from core. Some observations with pointing offset from flare center could be important for understanding eruption onset. A. Sterling, Feb 03