Lei Weihua

Associate Professor

Phone: (027)87543881

Email: leiwh@hust.edu.cn

Academic Areas: High energy astrophysics; Gamma-ray bursts; Tidal-disruption events

Research Interests: Gamma-ray bursts (GRBs) and tidal-disruption events (TDEs)

 

My main research interests are gamma-ray bursts (GRBs) and tidal-disruption events (TDEs). I study the central engine of GRBs, topics including: (1) the Blandford-Znajek mechanism (BZ) as the central engine of GRBs; (2) The effects of magnetic field (eg., magnetic coupling process (MC), magnetic stress in plunging region) on neutrino-dominated accretion flow (NDAF); (3) the comparison between BZ and NDAF models; (4) the GRMHD simulation (eg., HARM) for the accretion disk and jet launching in the GRB central engine. My research also cover the GRB jet acceleration, radiation and polarization.

Recently, I began to study TDE. Only a small fraction of TDE can launch relativistic jet. I am trying to understand the crucial factor behind such type (like Sw J1644+57, Sw J2058+05). I am also interested in the GR effects, disk formation, jet launching mechanism and radiation in TDE (TDE may enable us to study the whole story of disk accretion and jet production). My work on the measurements of SMBH spin in Sw J 1644+57 and Sw J2058+05 has been reported in UNLV news, UNLV Rebel Yell, and referenced in this book. I also participated several observational proposal (VLBA, Chandra, LMT).

Academic Degrees

2002. 9 – 2006.6 Ph.D. in theoretical physics, Huazhong University of Science and Technology (HUST)

2000. 9 – 2002.7 Master in theoretical physics, Huazhong University of Science and Technology

1996. 9 – 2000.7 Bachelor in Science, Huazhong Normal University (CCNU)

Professional Experience

2002-Presen : Associate Professor, Huazhong University of Science and Technology

2007-2011: Post-doctoral Researcher, Department of Physics and Astronomy, University of Nevada Las Vegas (UNLV)

Selected Publications

33.Wei-Hua Lei, Qiang Yuan, Bing Zhang and Q. Daniel Wang, “IGR J12580+0134: The First Tidal Disruption Event with an Off-beam Relativistic Jet”,2016, ApJ, 816, 20, arXiv: 1511.01206

32. Qing-Wen Wu, Bing Zhang, Wei-Hua Lei, Yuan-Chuan Zou, En-Wei Liang and Xin-Wu Cao, “The extension of variability properties in gamma-ray bursts to blazars”, MNRAS, 2015, accepted, arXiv: 1509.04896

31. Hou-Jun Lv, Bing Zhang, Wei-Hua Lei, Ye Li, Paul D. Lasky, “The Millisecond Magnetar Central Engine in Short GRBs”, ApJ, 2015, 805, 89, arXiv:1501.02589

30.Jing Lv, Jing-Wen Xing, Yuan-Chuan Zou, Wei-Hua Lei, Qing-Wen Wu, Ding-Xiong Wang, “Extending the correlation of LR ‑ LX to gamma-ray bursts”, RAA, 2015, 15, 617

29. Shu-Jin Hou, He Gao, Tong Liu, Wei-Min Gu, Da-Bin Lin, Ya-Ping Li, Yun-Peng Men, Xue-Feng Wu, Wei-Hua Lei, Ju-Fu Lu, “Variability of the giant X-ray bump in GRB 121027A and its possible origin ”, MNRAS, 2014, 441, 2375, arXiv:1404.1420

28. Jiu-Zhou Wang, Wei-Hua Lei*, Ding-Xiong Wang, Yuan-Chuan Zou, Bing Zhang, He Gao, Chang-Yin Huang, “Quasi-periodic Variations in X-Ray Emission and Long-term Radio Observations: Evidence for a Two-component Jet in Sw J1644+57 ”, ApJ, 2014, 788, 32, arXiv:1405.0180; Cited by this book

27. He Gao, Wei-Hua Lei, Yuan-Chuan Zou, Xue-Feng Wu, Bing Zhang, “A complete reference of the analytical synchrotron external shock models of gamma-ray bursts ”, New Astronomy Reviews, 2013, 435, 2520, arXiv:1310.2181

26. He Gao, Wei-Hua Lei, Bing Zhang, “Compton scattering of self-absorbed synchrotron emission ”, MNRAS, 2013, 435, 2520, arXiv:1204.1386

25. Xue-Feng Wu, Shu-Jin Hou, Wei-Hua Lei, “Giant X-Ray Bump in GRB 121027A: Evidence for Fall-back Disk Accretion”, ApJ, 2013, 767, 36, arXiv:1302.4878

24. Wei-Hua Lei, Bing Zhang, En-Wei Liang, “Hyperaccreting Black Hole as Gamma-Ray Burst Central Engine. I. Baryon Loading in Gamma-Ray Burst Jets”, ApJ, 2013, 765, 125, arXiv:1209.4427

23.Wei-Hua Lei, Bing Zhang, He Gao, “Frame-dragging, disk warping, jet precessing, and dipped X-ray lightcurve of Sw J1644+57”, ApJ, 2013, 762, 98, arXiv:1202.4231; Cited by this book

22.Tong Liu, En-Wei Liang, Wei-Min Gu, Shu-Jin Hou, Wei-Hua Lei, Lin Lin, Zi-Gao Dai, Shuang-Nan Zhang, “Radial Angular Momentum Transfer and Magnetic Barrier for Short-type Gamma-Ray-burst Central Engine Activity ”, ApJ, 2012, 760, 63, arXiv:1209.4522

21. Rui-Jing Lu, Jun-Jie Wei, En-Wei Liang, Bin-Bin Zhang, Hou-Jun Lv, Lian-Zhong Lv, Wei-Hua Lei, Bing Zhang, “A Comprehensive Analysis of Fermi Gamma-ray Burst Data: II. $E_{\rm p}$-Evolution Patterns and Implications for the Observed Spectrum-Luminosity Relations ”, ApJ, 2012, 756, 112, arXiv:1204.0714

20.Wei Xie, Wei Hua Lei*, Yuan Chuan Zou, Ding Xiong Wang, Qing Wen Wu, Jiu Zhou Wang, “A Two Component Jet Model based on the Blandford-Znajek and Blandford-Payne Processes”, RAA, 2012, 12, 817, arXiv:1202.5024

19. J. Lv, Y.C. Zou, W. H. Lei*, B. Zhang, Q. W. Wu, D. X. Wang, E. W. Liang, H. J. Lv, “Lorentz Factor-Isotropic Luminosity/Energy Correlations of GRBS and Their Interpretation”, ApJ, 2012, 751, 49, arXiv:1109.3757

18. W. H. Lei, B. Zhang, “Black Hole Spin in Sw J1644+57 and Sw J2058+05”, ApJ Letter, 2011, 740, L27, arXiv:1108.3115 UNLV news, Rebel Yell report ; Cited by this book

17.W. H. Lei, D. X. Wang, L. Zhang, Z. M. Gan, and Y. C. Zou, “A Toy Model for Magnetized Neutrino-Dominated Accretion Flows”, Sciences in China (G), 2010, 53(s1), 98-101, arXiv:0906.4967

16.W. H. Lei, D. X. Wang, L. Zhang, Z. M. Gan, Y. C. Zou, and Y. Xie, “Magnetically Torqued Neutrino-Dominated Accretion Flows for Gamma-ray Bursts”, ApJ, 2009, 700, 1970, arXiv:0906.1635

15.Gan, Zhao-Ming; Wang, Ding-Xiong; Lei, Wei-Hua, “A model of magnetically induced disc-corona for black hole binaries”, MNRAS, 2009, 394, 2310, arXiv:0901.3002

14. W. H. Lei, D. X. Wang, Y. C. Zou, and L. Zhang, "Hyperaccretion after the Blandford-Znajek process: a new model for GRBs with X-ray flares observed in early afterglows", ChJAA, 2008, 8, 404-410, arXiv:0802.0419

13.Xie, Yi; Wen, Xiao-Qing; Lei, Wei-Hua, “The Influence of Magnetic Braking on Neutrino-dominated Accretion Disk”, AIPC, 2008, 1065, 302

12.W. H. Lei, D. X. Wang, B. P. Gong, and C. Y. Huang, “A Toy Model for the Light Curves of Gamma-Ray Bursts”, A&A, 2007, 468, 563-569, astro-ph/0703238

11. Y. Xie, C.-Y. Huang, W.-H. Lei, “ Effects of Magnetic Fields on Neutrino-dominated Accretion Model for Gamma-ray Bursts”, ChJAA, 2007, 7, 685-692, arXiv:0706.2527

10. Wang, D. X., Lei, W. H., Ye, Y. C., “Screw Instability of Magnetic Field and Gamma-Ray Bursts in Type Ib/C Supernovae”, ApJ, 2006, 643, 1047, astro-ph/0601707

9.Wei-Hua Lei, Wang, D.X., Ma, R. Y., “A Toy Model for Gamma-Ray Bursts in Type Ib/C Supernovae”, ApJ, 2005, 619, 420, astro-ph/0410219

8. Wei-Hua Lei, Wang, D.X., Ma, R. Y., “A New Model for Gamma-Ray Burst Powered by the Blandford-Znajek Process”, ChJAA, 2005, 5, Suppl., 279

7.Wang, D. X., Ma, R. Y., Wei-Hua Lei, and Yao, G. Z., “Screw Instability of the Magnetic Field Connecting a Rotating Black Hole with its Surrounding Disk”, ApJ, 2004, 601, 1031, astro-ph/0309754

6. Wang, D.X., Wei-Hua Lei, Ma, R. Y., “Transfer of Energy and Angular Momentum in the Magnetic Coupling between a Rotating Black Hole and the Surrounding Accretion Disc”, Mon. Not. R. Astron. Soc., 2003, 342, 851-860, astro-ph/0303050

5. Wang, D. X., Ma, R. Y., Wei-Hua Lei, and Yao, G. Z.,, “Magnetic Coupling of a Rotating Black Hole with Its Surrounding Accretion Disk”, ApJ, 2003, 595, 109, astro-ph/0306083

4. Wang, D. X., Ma, R. Y., Wei-Hua Lei, and Yao, G. Z., “An Analytic Model of a Rotating Hotspot and Kilohertz Quasi-Periodic Oscillations in X-Ray Binaries”, MNRAS, 2003, 344, 473, astro-ph/0305478

3. Wang D. X., Wei-Hua Lei, Xiao K., “An Analytic Model of Black Hole Evolution and Gamma Ray Bursts”, ApJ, 2002, 580 (11) 358-367, astro-ph/0209579

2. Wang D. X., Xiao K., Wei-Hua Lei, “Evolution characteristics of central black hole of magnetized accretion disc”, MNRAS, 2002, 335, 655, astro-ph/0209368

1.Wang D. X., Xiao K., Wei-Hua Lei, “Two Mechanisms for Extracting Energy and Angular Momentum from a Rotating Black Hole”, GRG, 2002, 34, 620

Selected Cases

• National Natural Science Foundation of China , Grant No. U1431124 (principal)

• National Natural Science Foundation of China , Grant No. 11003004 (principal)

• National Natural Science Foundation of China , Grant No. 10847127 (principal)

• National Natural Science Foundation of China, Grant No. 11361140349 (China-Israel jointed program) (participant)

• 973 program , Grant No. 2014CB845800 (participant)

Awards and Honors

Courses Taught

• High Energy Astrophysics

• Introduction to Astrophysics

• College Physics

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