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    刘睿

    • 教授 博士生导师 硕士生导师
    • 教师拼音名称:LIU Rui
    • 电子邮箱:
    • 学历:博士研究生毕业
    • 联系方式:0551-63607246
    • 学位:博士
    • 2012当选:国家优秀青年基金获得者
    • 2019当选:国家杰青
    • 2022-10-01曾获荣誉当选:安徽省教学成果奖(特等奖)
    • 2023-07-01曾获荣誉当选:国家级教学成果奖(二等奖)
    • 2019-09-01曾获荣誉当选:中科院优秀导师奖

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    2022年秋季英文授课 - Solar Physics

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    Description

    The Sun, the massive object that dominates the solar system and helps to support life on Earth, is also the driver of physical processes in the space environment between the Sun and the Earth, known as space weather. The practical importance of space weather is to mitigate its adverse effects on critical human technological systems, including satellites, their payloads and astronauts, communications, navigations, power grids, etc. This course is focused on the fundamentals as well as the recent progress in solar physics, to prepare graduate students for the space research in general. It includes the basic physical processes governing the formation of the solar interior and atmosphere, the solar magnetic field and configuration, the physical bases of flares and coronal mass ejections, and particle acceleration mechanisms. This introductory course is intended for graduate students and upper-level undergraduate students with academic background in physics/astrophysics. This course spans 40 class hours and merits 2 credits.

    Grading

    • Homework (25%): to reinforce the understanding of basic physical concepts

    • Project (30%): three projects based on data analysis and numerical models to get some hands-on experience.

    • Presentation (15%): research articles will be assigned for certain chapters for further readings. Each enrolled student is expected to give one presentation based on, but not limited strictly to, these assigned articles. Each presentation will last about 15 minutes, including 3-min Q&A.

    • Final test (20%): an open-book test for physical concepts and intuition.

    • Participation (10%): Raise or answer questions in class.

    Text Book

    “Physics of the Sun: A First Course" by Dermott J. Mullan (CRC Press, 2010)

    References

      • "The Sun as a Guide to Stellar Physics" edited by Oddbjorn Engvold, Jean-Claude Vial, and Andrew Skumanich, Elsevier, 1st Edition, 2018

      • "The Sun: An Introduction" by M. Stix, Springer, 2nd Edition, 2002

      • "Solar Astrophysics" by P. V. Foukal, Wiley-VCH, 2nd Edition, 2004

      • "Magnetohydrodynamics of the Sun" by E.R. Priest, Cambridge University Press, 2014

      • "Physics of the Solar Corona" by M. Aschwanden, Springer, 2006

      • "The Solar Corona" by L. Golub and J. Pasachoff, Cambridge University Press, 2nd Edition, 2010

      • "The Solar Transition Region" by J. T. Mariska, Cambridge University Press, 1992

    Lectures

    1. Introduction (Chap 1)

    2. Radiation (Chaps 2, 4)

    3. Absorption (Chap 3)

    4. Photosphere & Convection Zone (Chaps 5, 6, 7)

    5. Polytrope (Chap 10)

    6. Helioseismology (Chaps 13, 14)

    7. Chromosphere & Transition Region (Chap 15)

    8. Solar Magnetism (Chap 16)

    9. Corona (Chap 17)

    10. Solar Eruptions

    Projects

    1. Line formation (due on Oct 20)

    2. Modeling the photosphere (due on Nov 10)

    3. Tracing field lines (due on Dec 8)

    Presentation (Dec 15)

    1. Laurent et al. 2020, Science, Meridional flow in the Sun's convection zone is a single cell in each hemisphere

    2. Hotta & Kusano 2021, Nature Astronomy, Solar differential rotation reproduced with high-resolution simulation

    3. Hanson et al. 2022, Nature Astronomy, Discovery of high-frequency retrograde vorticity waves in the Sun

    4. Ishikawa et al. 2021, Science Advances, Mapping solar magnetic fields from the photosphere to the base of the corona

    5. Stangalini et al. 2021, Nature Astronomy, Torsional oscillations within a magnetic pore in the solar photosphere

    6. Morton et al. 2012, Nature Communications, Observations of ubiquitous compressive waves in the Sun’s chromosphere

    7. Grant et al. 2018, Nature Physics, Alfvén wave dissipation in the solar chromosphere

    8. Jess et al. 2020, Nature Astronomy, A chromospheric resonance cavity in a sunspot mapped with seismology, see also the comment by Felipe 2021, Nature Astronomy, Signatures of sunspot oscillations and the case for chromospheric resonances, and the reply by Jess et al. 2021, Nature Astronomy

    9. Stangalini et al. 2022, Nature Communications, Large scale coherent magnetohydrodynamic oscillations in a sunspot

    10. Mohammad et al. 2021, Nature Astronomy, The origin of reconnection-mediated transient brightenings in the solar transition region

    11. Antolin et al. 2021, Nature Astronomy, Reconnection nanojets in the solar corona

    12. Jenkins & Keppens, 2022, Nature Astronomy, Resolving the solar prominence/filament paradox using the magnetic Rayleigh–Taylor instability

    13. Shen et al. 2022, Nature Astronomy, The origin of underdense plasma downflows associated with magnetic reconnection in solar flares

    14. Yan et al. 2022, Nature Communications, Fast plasmoid-mediated reconnection in a solar flare

    15. Fleishman et al. 2022, NautureSolar flare accelerates nearly all electrons in a large coronal volume

    16. Zhong et al. 2022, Nature Communications, The role of non-axisymmetry of magnetic flux rope in constraining solar eruptions

    17. Howard et al. 2019, Nature, Near-Sun observations of an F-corona decrease and K-corona fine structure

    18. Carley et  al. 2013, Nature Physics, Quasiperiodic acceleration of electrons by a plasmoid-driven shock in the solar atmosphere

    19. Srivastava et al. 2018, Nature Astronomy, Confined pseudo-shocks as an energy source for the active solar corona

    20. Morosan et al. 2019, Nature Astronomy, Multiple regions of shock-accelerated particles during a solar coronal mass ejection

    21. Reid & Kontar 2021, Nature Astonomy, Fine structure of type III solar radio bursts from Langmuir wave motion in turbulent plasma

    22. Veronig et al. 2021, Nature Astronomy, Indications of stellar coronal mass ejections through coronal dimmings