Jiaru Li

Astronomy & Space Sciences


I am a Ph.D. student advised by Prof. Dong Lai.

My research interests include exoplanetary dynamics, protoplanetary disks, and the dynamical evolution of embedded black holes in the AGN disks. I primarily study theories in these topics using N-body and hydrodynamics simulations. 

I joined Cornell as a graduate student in 2017. I also spent two years of my grad school at Los Alamos National Laboratory, where I worked with Dr. Hui Li and his group. My bachelor’s degree was obtained at University of Toronto at Scarborough, where I worked with on Prof. Artur Izmaylov on quantum chemistry.

Before I started my university study, I was born and raised in Hangzhou, China.


Research Focus

Advisor: Professor Dong Lai



Jiaru Li, Laetitia Rodet, and Dong Lai, “Dynamical Instability in Multi-Orbiter Systems with Gas Friction”, submitted.

Jiaru Li, Dong Lai, and Laetitia Rodet, “Long-term Evolution of Tightly-Packed Stellar Black Holes in AGN Disks: Formation of Merging Black-Hole Binaries via Close Encounters”, ApJ accepted.

Ya-Ping Li, Adam Dempsey, Hui Li, Shengtai Li, and Jiaru Li, “Hot Circumsingle Disks Drive Binary Black Hole Mergers in Active Galactic Nucleus Disks”, ApJ 928, L19, 2022.

Ya-Ping Li, Adam Dempsey, Shengtai Li, Hui Li, and Jiaru Li, “Orbital Evolution of Binary Black Holes in Active Galactic Nucleus Disks: A Disk Channel for Binary Black Hole Mergers?”, ApJ 911, 124, 2021.

Jiaru Li, Adam Dempsey, Hui Li, and Shengtai Li, “Ring Formation in Protoplanetary Disks Driven by an Eccentric Instability”, ApJ 910, 79, 2021.

Jiaru Li, Dong Lai, Kassandra Anderson, and Bonan Pu, “Giant Planet Scatterings and Collisions: Hydrodynamics, Merger-Ejection Branching Ratio, and Properties of the Remnants”, MNRAS 501, 1621, 2021.

Jiaru Li and Dong Lai, “Planetary Spin and Obliquity from Mergers”, ApJL 898, L20, 2020.

Jiaru Li, Loïc Joubert-Doriol, and Artur F. Izmaylov, “Geometric Phase Effects in Excited State Dynamics through a Conical Intersection in Large Molecules: N-Dimensional Linear Vibronic Coupling Model Study”, J. Chem. Phys. 147, 064106, 2017.