Flows and Magnetic Fields in Complex Sunspots and their Role in Producing Solar Flares

复杂太阳黑子中的流和磁场及其在产生太阳耀斑中的作用

基本信息

项目摘要

Coronal mass ejections (CMEs) and flares are the most prominent energetic events on the Sun, which can even affect the Earth and the near-Earth environment. In today’s technology-driven society, precise knowledge about the likelihood of such eruptive events and effective ways of forecasting their occurrence are essential to protect assets both in space and on the ground. However, many fundamental questions remain open about the nature of flares and the mechanisms that trigger them. Recently, rapid changes of photospheric magnetic fields have been observed after solar flares, where entire segments of sunspot penumbrae permanently vanished. Shear flows along the magnetic neutral line are an example of peculiar flows in complex sunspots, which might contribute to magnetic shear buildup and lead to non-potential magnetic fields. Two-dimensional spectroscopy and polarimetry with high spatial, temporal, and spectral resolution provides an excellent opportunity to study these phenomena and to advance our understanding of the complex and highly dynamic nature of sunspots. This research project is one of the key science projects for the GREGOR solar telescope, which will become operational at Observatorio del Teide, Tenerife, Spain in the summer of 2011. The GREGOR Fabry-Pérot Interferometer (GFPI) will be used during the GREGOR science demonstration in 2011–14 to zoom in on the small-scale processes associated with solar flares, while additional data from ground-based and (new) space missions will provide the necessary context.
日冕物质抛射(CME)和耀斑是太阳上最突出的能量事件,甚至可以影响地球和近地环境。在当今技术驱动的社会中,准确了解此类爆发事件的可能性以及预测其发生的有效方法对于保护空间和地面资产至关重要。然而,关于耀斑的性质和触发耀斑的机制,许多基本问题仍然悬而未决。最近,在太阳耀斑之后观测到光球磁场的快速变化,其中太阳黑子半影的整个部分永久消失。沿着磁中性线的剪切流是复杂黑子中特殊流动的一个例子,它可能有助于磁剪切的建立并导致非势磁场。具有高空间、时间和光谱分辨率的二维光谱学和偏振测量为研究这些现象提供了极好的机会,并促进了我们对太阳黑子复杂和高度动态性质的理解。该研究项目是GREGOR太阳望远镜的关键科学项目之一,该望远镜将于2011年夏天在西班牙特内里费岛的Observatorio del Teide投入运行。在2011- 2014年的GREGOR科学演示期间,将使用GREGOR Fabry-Pérot干涉仪(GFPI)来放大与太阳耀斑相关的小规模过程,而来自地面和(新的)空间任务的额外数据将提供必要的背景。

项目成果

期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Horizontal flow fields in and around a small active region-- The transition period between flux emergence and decay
  • DOI:
    10.1051/0004-6361/201628380
  • 发表时间:
    2016-05
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Verma;C. Denker;H. Balthasar;C. Kuckein;S. J. G. Manrique;M. Sobotka;N. B. Gonz'alez;S. Hoch;A. Diercke;P. Kummerow;T. Berkefeld;M. Collados;A. Feller;A. Hofmann;F. Kneer;A. Lagg;J. Lohner-Bottcher;H. Nicklas;A. P. Yabar;R. Schlichenmaier;D. Schmidt;W. Schmidt;M. Schubert;M. Sigwarth;S. Solanki;D. Soltau;J. Staude;K. Strassmeier;R. Volkmer;O. V. D. Luhe;T. Waldmann
  • 通讯作者:
    M. Verma;C. Denker;H. Balthasar;C. Kuckein;S. J. G. Manrique;M. Sobotka;N. B. Gonz'alez;S. Hoch;A. Diercke;P. Kummerow;T. Berkefeld;M. Collados;A. Feller;A. Hofmann;F. Kneer;A. Lagg;J. Lohner-Bottcher;H. Nicklas;A. P. Yabar;R. Schlichenmaier;D. Schmidt;W. Schmidt;M. Schubert;M. Sigwarth;S. Solanki;D. Soltau;J. Staude;K. Strassmeier;R. Volkmer;O. V. D. Luhe;T. Waldmann
Slipping reconnection in a solar flare observed in high resolution with the GREGOR solar telescope
  • DOI:
    10.1051/0004-6361/201527966
  • 发表时间:
    2016-05
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Sobotka;J. Dud'ik;C. Denker;H. Balthasar;J. Jurvc'ak;W. Liu;T. Berkefeld;M. C. Vera;A. Feller;A. Hofmann;F. Kneer;C. Kuckein;A. Lagg;R. Louis;O. V. D. Luhe;H. Nicklas;R. Schlichenmaier;D. Schmidt;W. Schmidt;M. Sigwarth;S. Solanki;D. Soltau;J. Staude;K. Strassmeier;R. Volkmer;T. Waldmann
  • 通讯作者:
    M. Sobotka;J. Dud'ik;C. Denker;H. Balthasar;J. Jurvc'ak;W. Liu;T. Berkefeld;M. C. Vera;A. Feller;A. Hofmann;F. Kneer;C. Kuckein;A. Lagg;R. Louis;O. V. D. Luhe;H. Nicklas;R. Schlichenmaier;D. Schmidt;W. Schmidt;M. Sigwarth;S. Solanki;D. Soltau;J. Staude;K. Strassmeier;R. Volkmer;T. Waldmann
Sunspot splitting triggering an eruptive flare
  • DOI:
    10.1051/0004-6361/201321106
  • 发表时间:
    2013-11
  • 期刊:
  • 影响因子:
    6.5
  • 作者:
    R. Louis;K. Puschmann;B. Kliem;H. Balthasar;C. Denker
  • 通讯作者:
    R. Louis;K. Puschmann;B. Kliem;H. Balthasar;C. Denker
Formation of a penumbra in a decaying sunspot
  • DOI:
    10.1051/0004-6361/201321314
  • 发表时间:
    2013-03
  • 期刊:
  • 影响因子:
    6.5
  • 作者:
    R. Louis;S. Mathew;K. Puschmann;C. Beck;H. Balthasar
  • 通讯作者:
    R. Louis;S. Mathew;K. Puschmann;C. Beck;H. Balthasar
Near-infrared spectropolarimetry of a δ-spot
Ύ´ 点的近红外光谱偏振法
  • DOI:
    10.1051/0004-6361/201323224
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    6.5
  • 作者:
    Balthasar;Denker
  • 通讯作者:
    Denker
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Professor Dr. Carsten Denker其他文献

Professor Dr. Carsten Denker的其他文献

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{{ truncateString('Professor Dr. Carsten Denker', 18)}}的其他基金

Quiet-Sun Magnetic Fields and Newly Emerging Flux - Dynamics, Energetics, and Upper Atmospheric Response
安静的太阳磁场和新出现的通量——动力学、能量学和高层大气响应
  • 批准号:
    391070020
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似海外基金

Magnetic fields and atomic gas flows in the Milky Way and Magellanic Clouds
银河系和麦哲伦云中的磁场和原子气体流
  • 批准号:
    DP220101558
  • 财政年份:
    2022
  • 资助金额:
    --
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    Discovery Projects
Small-scale turbulence to large-scale flows and magnetic fields: a gyrokinetic investigation
小规模湍流到大规模流动和磁场:回旋运动研究
  • 批准号:
    310618514
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Fellowships
High Resolution Observations of Evolution of Magnetic Fields and Flows Associated with Solar Eruptions
与太阳喷发相关的磁场和气流演化的高分辨率观测
  • 批准号:
    1408703
  • 财政年份:
    2014
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    --
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    Continuing Grant
Development of Experimental Procedures for Measuring Three-Dimensional Temperature Fields in Technical Flows Using Magnetic Resonance Imaging
使用磁共振成像测量技术流程中三维温度场的实验程序的开发
  • 批准号:
    235233928
  • 财政年份:
    2013
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    --
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Geodesic flows and billiards in the presence of magnetic fields
存在磁场时的测地线流和台球
  • 批准号:
    42369092
  • 财政年份:
    2007
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    --
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Flows and magnetic fields of sunspots at high spatial resolution
高空间分辨率下太阳黑子的流动和磁场
  • 批准号:
    26763380
  • 财政年份:
    2006
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    --
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    Research Grants
US-Germany Cooperative Research: Flows of Electrically Conducting Fluids in the Presence of Strong Magnetic Fields
美德合作研究:强磁场下导电流体的流动
  • 批准号:
    0338713
  • 财政年份:
    2004
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SENSORS: Sensor Arrays for Micro-Control of Electrically Conducted Flows in Magnetic Fields
传感器:用于磁场中导电流微控制的传感器阵列
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    0329662
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    2003
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Laboratory Studies of Effects Associated with Plasma Non-Uniformities (Non-Uniform Magnetic Fields and Non-Uniform Plasma Flows)
与等离子体不均匀性(非均匀磁场和非均匀等离子体流)相关的效应的实验室研究
  • 批准号:
    9876847
  • 财政年份:
    1999
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    --
  • 项目类别:
    Continuing Grant
Formation of Flows and Structures Associated with Magnetic Fields in Active Astronomical Objects.
活动天体中与磁场相关的流动和结构的形成。
  • 批准号:
    05302014
  • 财政年份:
    1993
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    --
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)
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