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Wei - Page 1 of 5 Liu, Wei - Page 1 of 5 WEI LIU NASA Goddard Space Flight Center TEL: (301) 286-1843 Solar Physics Laboratory - Code 671 FAX: (301) 286-1617 Heliophysics Science Division Email: [email protected] Greenbelt, MD 20771 Web: http://hesperia.gsfc.nasa.gov/~weiliu Education 06/2000-12/2006 Stanford University, Stanford, California. Ph.D. in Physics Dissertation: “Characteristics of Solar Flare Hard X-ray Emissions: Observations and Models”. Reading Committee: Profs. Vahé Petrosian (adviser), Philip H. Scherrer, and Peter A. Sturrock. 09/1993-06/2000 University of Science and Technology of China, Hefei, Anhui, P.R. China. M.S. in Space Physics (06/2000). Adviser: Prof. Y. Q. Hu. Thesis: “Solar Prominence Disturbances Associated with Photospheric Magnetic Flux Emergence and Cancellation: a Magnetohydrodynamic (MHD) Simulation Study”. B.S. in Space Physics (07/1997). Work Experience 01/2007-present NASA Postdoctoral Program (NPP) Fellow, Solar Physics Laboratory, NASA Goddard Space Flight Center. RHESSI data analysis and software development, combined particle-hydrodynamic simulation of solar flares, statistical study of flare size distribution. 6/2002-12/2006 Research Assistant, Department of Physics, Stanford University (with Prof. Vahé. Petrosian). RHESSI data analysis and theoretical modeling of solar flares. 9/2002-1/2003 Resident Observer, Wilcox Solar Observatory (WSO), Stanford University. Performed daily operation of the telescope to measure the photospheric magnetic field and maintenance of the instruments. Liu, Wei - Page 2 of 5 6/2000-6/2002 Research Assistant, Solar Physics Group, Stanford University (with Prof. Philip H. Scherrer). Projects: CME modeling using MHD simulations; employing the cone model to measure 3D kinematic properties of CMEs; wavelet analysis of solar mean magnetic fields. 9/1997-6/2000 Research Assistant, Department of Earth and Space Sciences, University of Science and Technology of China. Projects: numerical MHD studies on solar prominence disturbances, solitary kinetic Alfvén waves, and interplanetary shocks. Publications & Presentations Refereed Publications Liu, W., Petrosian, V., Jiang, Y. W., & Dennis, B. R. “Double Coronal Hard and Soft X- ray Source Observed by RHESSI: Evidence for Magnetic Reconnection and Particle Acceleration in Solar Flares”, 2007 (Sept.) submitted to ApJ, available on astroph (http://arxiv.org/abs/0709.1963) & ADS (http://adsabs.harvard.edu/abs?arXiv:0709.1963). Liu, W., Liu, S., Jiang, Y. W., Petrosian, V. “Evidence of Chromospheric Evaporation Observed by RHESSI”, 2006, ApJ, 649, 1124-1139. Jiang, Y. W., Liu, S., Liu, W., & Petrosian, V. “Evolution of the Loop-Top Source of Solar Flares: Heating and Cooling Processes”, 2006, ApJ, 638, 1140-1153. Liu, W., Jiang, Y. W., Liu, S., & Petrosian, V. “RHESSI Observations of a Simple Large X- Ray Flare on 2003 November 3”, 2004, ApJ Letters, 611, L53-L56. Boberg, F., Lundstedt, H., Hoeksema, J. T., Scherrer, P. H., & Liu, W. “Solar Mean Magnetic Field Variability: a Wavelet Approach to Wilcox Solar Observatory and SOHO/Michelson Doppler Imager Observations”, 2002, JGR, 107(A10), 1318-1324. Zhao, X. P., Plunkett, S. M., & Liu, W. “Determination of Geometrical and Kinematical Properties of Halo Coronal Mass Ejection Using the Cone Model”, 2002, JGR, 107(A8), 1223-1231. Hu, Y. Q., Jiang, Y. W., & Liu, W. “Coronal Magnetic Flux Rope Equilibria and Magnetic Helicity”, 2001, Chinese Journal of Astronomy & Astrophysics, 1, 77-84. Hu, Y. Q., & Liu, W. “A 2.5-dimensional Ideal Magnetohydrodynamic Model for Coronal Magnetic Flux Ropes”, 2000, ApJ, 540, 1119-1125. Liu, W., Hu, Y. Q., Xia, L. D., & Yang, Y. L. “Prominence Disturbance Caused by Magnetic Cancellation”, 2000, Chinese Astronomy and Astrophysics, 24, 365-373. Liu, Wei - Page 3 of 5 Yang, Y. L., Liu, S. L., Hu, Y. Q., & Liu, W. “Numerical Study of Propagation Properties of Interplanetary Shocks”, 2000, Chinese Journal of Geophysics, 43 (4), 435-442. Chen, Y., Li, Z.Y., Liu, W., & Shi, Z. D. “Solitary Kinetic Alfvén Waves in The Inertial Limit Region”, 2000, Physics of Plasmas, 7, 371-374. Conference Proceedings Liu, W., Zhao, X. P., Wu, S. T., & Scherrer, P. H. “Effects of Magnetic Topology on CME Kinematic Properties”, 2003, in ESA SP Series 535, the International Solar Cycle Studies (ISCS) Symposium: Solar Variability as an Input to the Earth's Environment, Ed. A. Wilson (Noordwijk: ESA Publications Division), 459-464. Liu, W., Plunkett, S. P. & Zhao, X. P. “A Cone Model for Coronal Mass Ejections”, 2002, in COSPAR Colloquia Series 14, Solar-Terrestrial Magnetic Activity and Space Environment, Eds. H. Wang & R. Xu (Boston: Pergamon), 267-269. Hu, Y. Q., and Liu, W., “Eruption of Emerged Magnetic Flux Ropes from The Photosphere”, 1999, in Proceedings of The First Franco-Chinese Meeting on Solar Physics, Eds. C. Fang, J. C. Hénoux, M. D. Ding (Beijing: International Academic Publishers), pp. 1. Other Publications Liu, W. “Characteristics of Solar Flare Hard X-ray Emissions: Observations and Models”, December, 2006, Ph. D. Thesis, Stanford University. Published by Proquest Dissertations And Theses 2007, Section 0212, Part 0373, 224 pages, Publication Number: AAT 3242584, ISBN: 9780542984037 (available at http://sun.stanford.edu/~weiliu/thesis/wei_thesis.pdf). Liu, W., Zhao, X. P., Wu, S. T., & Scherrer, P. H. “Magnetic topologies and two-class coronal mass ejections: a numerical magnetohydrodynamic study”, 2005, eprint arXiv:astro- ph/0511023 (online at http://arxiv.org/abs/astro-ph/0511023). In Preparation Liu, W., Dennis, B. R., Petrosian, V., & Holman, G. D. “On Asymmetric Conjugate Hard X- ray Footpoints in the 2003 October 29 X10 Flare: Magnetic Mirroring or Asymmetric Column Depths?”, to be submitted to ApJ. Liu, W., Petrosian, V., & Mariska, J. “Modeling Impulsive Phase Solar Flares: a Combined Hydrodynamic and Fokker-Planck Approach”, to be submitted to ApJ. Liu, W. & Petrosian, V., Holman, G. D., & Dennis, B. R. “Testing the Neupert Effect With the Combined Fokker-Planck and Hydrodynamic Codes”, to be submitted to ApJ. Liu, Wei - Page 4 of 5 Presentations Liu, W., “Characteristics of Solar Flare Hard X-ray Emissions: Observations and Models”, 2007, dissertation talk at Astronomical Society (AAS) 210th meeting, #068.01D (oral). Liu, W., Jiang, Y. W., Petrosian, V., Liu, S., & Mariska, J. T. “X-ray Emission from Flaring Loops: Comparison Between RHESSI Observations and Hydrodynamic Simulations”, 2006, AAS Solar Physics Division (SPD) meeting 37, #27.05 (oral). Liu, W., Liu, S., Jiang, Y. W., & Petrosian, V. “Hard X-ray Emissions From The Legs of Flaring Loops”, American Geophysical Union Fall Meeting, 2005, #SH13A-028(poster). Liu, W., Liu, S., Jiang, Y. W., & Petrosian, V. “Impulsive Phase Hard X-Ray Source Motions Observed by RHESSI”, AGU Spring Meeting, 2005, #SP41C-06 (oral). Liu, W., Liu, S., Jiang, Y. W., & Petrosian, V. “Several Results Revealed by RHESSI Observations”, 2004, RHESSI/SOHO/TRACE Workshop, Sonoma, California (oral/poster). Liu, W., Jiang, Y. W., Liu, S., Petrosian, V. “Source Motions and Foot-point Asymmetries in the 2003 October-November X-class Flares Observed by RHESSI”, 2004, AAS Meeting 204, #47.14 (oral). Liu, W., Jiang, Y. W., Petrosian, V., & Metcalf, T. R. “A Statistical Study of Limb Flares Observed by RHESSI: Imaging”, 2003, AAS/SPD Meeting 34, #18.02 (poster). Liu, W., Liu, Y., Zhao, X. P., & Scherrer, P. H. “Are the Signals in the Sun's Mean Magnetic Field Associated With Coronal Mass Ejections?” 2001, AGU Spring Meeting, #SH41A-06 (poster). Technical Skills Analysis of multi-wavelength data from space- and ground-based solar observatories, including RHESSI, GOES, SOHO/MDI and WSO, LASCO, EIT and TRACE. Fokker-Planck calculation of particle acceleration and transport. Magnetohydrodynamics (MHD) simulation of Coronal Mass Ejections (CMEs) and Hydrodynamics (HD) simulation of solar flares. Wavelet analysis of time series data. Proficiency in IDL, Solar SoftWare (SSW), Fortran, and C/C++. Operation of solar observation instruments (Wilcox Solar Observatory, WSO). UNIX/Linux system administration. Memberships American Astronomical Society (AAS) / Solar Physics Division (SPD), member since 2002. American Geophysical Union (AGU), member since 2001. Liu, Wei - Page 5 of 5 Awards and Scholarships NASA Postdoctoral Program (NPP) Fellowship, previously known as National Research Council (NRC) Postdoctoral Fellowship, 2007. Student Award, the AAS Solar Physics Division Second Summer School, 2006. AAS Solar Physics Division Studentship Award, 2003. Adviser of a team winning Honorable Mention Award in the USA Mathematical Contest in Modeling (MCM), 2000. Meritorious Award in the USA Mathematical Contest in Modeling (MCM), 1997. The First-class Prize in the MCM, Chinese Society for Industrial and Applied Mathematics (CSIAM), 1995 & 1996. Di'ao Scholarship, 1999. Excellent Student Scholarship, University of Science and Technology of China, 1994, 1995, & 1996. Teaching Experience 3/2005-6/2005 Teaching Assistant, Electricity & Magnetism Lab (Prof. Douglas Osheroff), Department of Physics, Stanford University. Oversaw laboratory, set up and tested lab instruments, lectured lab classes, and evaluated lab reports. 9/2001-8/2006 Teaching Assistant, Department of Physics, Stanford University. Led discussion sections, held regular office hours, lectured review sessions (more than 100 students), graded homework and exams. Courses taught: Statistical Mechanics (graduate level, Prof. Alexander Fetter), Spring 2006 Light & Heat (Prof. Peter F. Michelson), Fall, 2005; The Nature of Universe (Prof. Masao Sako), Summer, 2005; Winter & Summer, 2006; Electricity & Optics (Prof. H. Alan Schwettman), Winter 2003; Mechanics & Heat (Prof. Andrei Linde), Fall, 2001. 9/1999- 2/2000 Adviser for the Mathematical Contest in Modeling Team, University of Science and Technology of China. 9/1999- 1/2000 Teaching Assistant, Computational Methods, Department of Mathematics, University of Science and Technology of China. Graded homework and led office hours..
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