Liu (SWRL/NJIT)
chang.liu (at)


Distinguished Research Professor
Institute for Space Weather Sciences
Center for Solar-Terrestrial Research
New Jersey Institute of Technology
323 Martin Luther King Jr. Blvd.
Newark, NJ 07102-1982

Phone:  (973) 596-5760  Fax: (973) 596-3617
Office: 403 Tiernan Hall
M. S. in Computer Science, New Jersey Institute of Technology, Aug 2017
Ph. D. in Applied Physics, New Jersey Institute of Technology, Jan 2007

M. S. in Physics, Rutgers, The State University of New Jersey - New Brunswick, NJ, Oct 2002
B. S. in Physics, Nanjing University, Nanjing, China, Jul 2000

Work Experience
2019/07–present: Distinguished Research Professor, Institute for Space Weather Sciences, NJIT
2009/07–2019/06: Research Professor, Space Weather Research Laboratory, NJIT
2007/01–2009/06: Postdoctoral Researcher, Big Bear Solar Observatory, NJIT

Excellence in Research by Research Professor Award,
College of Science and Liberal Arts, New Jersey Institute of Technology, 2017
First Prize of Graduate Division, Second Annual Provost's Student Research Showcase,
New Jersey Institute of Technology, 2006
Studentship Award, American Astronomical Society, Solar Physics Division, 2004 and 2006
Outstanding Graduate of Nanjing University, 2000

Refereed Cross-discipline Papers:
Liu, C., Deng, N., Wang, J. T.L., & Wang, H. 2017, Predicting Solar Flares Using SDO/HMI Vector Magnetic Data Product and Random Forest Algorithm, ApJ, 843, 104 [accompanying site]
Liu, H., Liu, C., Wang, J. T.L., & Wang, H. 2019, Predicting Solar Flares Using a Long Short-term Memory Network, ApJ, 877, 121

Project in charge involving big data handling and processing:
Solar Film Digitization Project

In the News
RHESSI Science Nugget (24 October 2016): Flare-induced Impulsive Sunspot Rotation caught in High Resolution
NJIT Press Release (11 Oct 2016):
The Sun's Coronal Tail Wags its Photospheric Dog

HMI Science Nugget (27 Oct 2014): Surface and Coronal Field Signatures of Implosions in Two Homologous Solar Flares
RHESSI Science Nugget (20 Nov 2006): Ribbon-like hard X-ray source

Full Publication List at ADS Public Library

First-authored Papers:
Liu, C., Prasad, A., Lee, J., & Wang, H. 2020, An Eruptive Circular-ribbon Flare with Extended Remote Brightenings, ApJ, accepted
(19) Liu, C., Lee, J., & Wang, H. 2019,
The Eruption of Outer Spine-Like Loops Leading to A Double-Stage Circular-Ribbon Flare, ApJ, 883, 47
(18) Liu, C.
, Cao, W., Chae, J., Ahn, K., Choudhary, D. P., Lee, J., Liu, R., Deng, N., Wang, J., & Wang, H. 2018, Evolution of Photospheric Vector Magnetic Field Associated with Moving Flare Ribbons as Seen by GST, ApJ, 869, 21
(17) Liu, C., Deng, N., Wang, J. T.L., & Wang, H. 2017, Predicting Solar Flares Using SDO/HMI Vector Magnetic Data Product and Random Forest Algorithm, ApJ, 843, 104 [accompanying website]
(16) Liu, C., Xu, Y., Cao, W., Deng, N., Lee, J., Hudson, H.S., Gary, D.E., Wang, J., Jing, J., & Wang, H. 2016, Flare differentially rotates sunspot on Sun's surface, Nature Communications, 7, 13104 [ADS]
(15) Liu, C., Deng, N., Liu, R., Lee, J., Pariat, E., Wiegelmann, T., Liu, Y., Kleint, L., & Wang, H. 2015, A Circular-ribbon Solar Flare Following an Asymmetric Filament Eruption, ApJ Letters, 812, L19
(14) Liu, C., Deng, N., Lee J., Wiegelmann, T., Jiang C., Dennis B. R., Su Y., Donea A. & Wang H. 2014, Three-dimensional Magnetic Restructuring in Two Homologous Solar Flares in the Seismically Active NOAA AR 11283, ApJ, 795, 128
(13) Liu, C., Deng N., Lee, J., Wiegelmann T., Moore, R.L., & Wang, H. 2013, Evidence for Solar Tether-cutting Magnetic Reconnection from Coronal Field Extrapolations, ApJ Letters, 778, L36(7pp)
(12) Liu, C., Xu, Y., Deng, N., Lee, J., Zhang, J., Choudhary, D. P. & Wang, H. 2013, He I D3 Observation of the 1984 May 22 M6.3 Solar Flare, ApJ, 774, 60(9pp)
Liu, C., Deng, N., Liu, R., Lee, J., Wiegelmann, T., Jing, J., Xu, Y., Wang, S. & Wang, H. 2012, Rapid Changes of Photospheric Magnetic Field After Tether-cutting Reconnection and Magnetic Implosion, ApJ Letters, 745, L4
(10) Liu, C., Deng, N., Liu, R., Ugarte-Urra, I., Wang, S. & Wang, H. 2011, A Standard-to-Blowout Jet, ApJ Letters, 735, L18
(9) Liu, C., Lee, J., Jing, J., Liu, R., Deng, N. & Wang, H. 2010, Motions of Hard X-ray Sources During an Asymmetric Eruption, ApJ Letters, 721, L193
(8) Liu, C., Lee, J., Karlicky, M., Choudhary, D. P., Deng, N. & Wang, H. 2009, The Successive Solar Flares and Coronal Mass Ejections on 2005 September 13, ApJ, 703, 757
(7) Liu, C. & Wang, H. 2009, Reconnection Electric Field and Hardness of X-ray Emission of Solar Flares, ApJ Letters, 696, L27
(6) Liu, C., Lee, J., Jing, J., Gary, D. E. & Wang, H. 2008, The Spatial Distribution of Hard X-Ray Spectral Index and Local Magnetic Reconnection Rate, ApJ Letters, 672, L69
(5) Liu, C., Lee, J., Yurchyshyn, V., Deng, N., Cho, K., Karlicky, M. & Wang, H. 2007, The Eruption from a Sigmoidal Solar Active Region on 2005 May 13, ApJ, 669, 1372
(4) Liu, C., Lee, J., Gary, D. E. & Wang, H. 2007, The Ribbon-Like Hard X-Ray Emission in a Sigmoidal Solar Active Region, ApJ Letters, 658, L127 (Also see RHESSI Science Nuggets #40; RHESSI's Tenth Anniversary)
(3) Liu, C., Lee, J., Deng, N., Gary, D. E. & Wang, H. 2006, Large-Scale Activities Associated with the 2003 October 29 X10 Flare, ApJ, 642, 1205
(2) Liu, C., Deng, N., Liu, Y., Falconer, D., Goode, P. R., Denker, C. & Wang, H. 2005, Rapid Change of Delta Spot Structure Associated with Seven Major Flares, ApJ, 622, 722
(1) Liu, C., Qiu, J., Gary, D. E., Krucker, S. & Wang, H. 2004, Studies of Microflares in RHESSI Hard X-ray, Big Bear Solar Observatory H-alpha and Michelson Doppler Imager Magnetograms, ApJ, 604, 442

Other Selected Papers:
Wang, H., Liu, C., Ahn, K., Xu, Y., Jing, J., Deng, N., Huang, N., Liu, R., Kusano, K., Fleishman, G. D., Gary, D. E., Cao, W. 2017, High-resolution observations of flare precursors in the low solar atmosphere, Nature Astronomy, 1, 0085
Wang, H., Cao W., Liu, C., Xu Y., Liu R., Zeng Z., Chae J., & Ji H. 2015, Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope, Nature Communications, 6, 7008

Last Updated: 10 Jun 2020