Dongzi Li, 李冬子

Assistant professor at Tsinghua University

Dongzi Li works as a bridge between the theory and observation of compact objects from the study of radio transients, such as Fast Radio Bursts (FRBs) and pulsars. She also use these sources to probe the cosmic matter distribution and magnetic structures. In the past few years, she has discovered the first periodic FRB (Nature 582,351), providing insights into the evolution and internal structure of the source. She pioneered the modeling of active magneto-environments using radio transients (Nature 618,484), advancing our understanding of their evolution. She is a member of the CHIME/FRB collaboration and the FAST key project.
Keywords: neutron stars, fast radio bursts, magnetic field, baryon distributions

Students interested in pursuing a Ph.D. or conducting postdoctoral research are welcome to contact me at dzli@tsinghua.edu.cn.

CV

Research Highlight

I found a 16-day periodicity of a fast radio burst (FRB) with the great data from CHIME/FRB collaboration. The plot is the FRB 20180916B bursts folded at its period.(Nature 582,351, CHIME/FRB collaboration, Li as corresponding author)

We observe diverse, rare polarization effects in a pulsar binary system. They resembles the recent polarization observation of some of the FRB repeaters, suggesting the latter may also reside in a binary system. The figure below shows that the circular polarization V of the pulsar changes signs when the line of sight is approaching the companion. I model the effect as the pulsar radio emission passing through the poloidal field of the companion. (Nature 618, 484–488, Li et al.)

More about me

Contact

dongzili@princeton.edu

I practice karate, although, sadly, not yet a flying Kungfu master as seen on the TV.

I love trees and kitties, although the latter may not always love me.

Great appreciation to my parents.