Zachary Andalman

  • Program Year: 1
  • Academic Institution: Princeton University
  • Field of Study: Astrophysical Sciences
  • Academic Advisor: Romain Teyssier
  • Practicum(s): Practicum Not Yet Completed
  • Degree(s):
    B.S. Physics, Yale University, 2023
  • Personal URL:

Summary of Research

I am a Ph.D. student at the Princeton University Department of Astrophysical Sciences. I use simulations to understand the physics of transients, a class of astrophysical phenomena which change brightness over human timescales (< years) such as supernovae, gamma ray bursts, and compact object mergers. These energetic events often produce multi-messenger signals i.e. electromagnetic radiation, gravitational radiation, cosmic rays. The current decade promises to be a golden age of transient astronomy, with new instruments like the Vera C. Rubin Observatory. Simulations are an excellent tool for understanding how these events work because they often involved coupled non-linear physics. My primary research focus is tidal disruption events (TDEs), where a star is torn apart by the tidal field of a supermassive black hole (SMBH). I'm interested in what physical processes operate in TDEs and how they can teach us about fundamental accretion physics.


Andalman, Z. L.; Natarajan, P.; Rameriz-Ruiz, E.; Line Emission Diagnostics in Tidal Disruption Event Debris Disks, currently in prep with plans for submission to The Astrophysical Journal Letters in 03/2024

Kaaz, N.; Liska, M. T. P.; Jacquemin-Ide, J.; Musoke, G.; West, A.; Andalman, Z. L.; Tchekhovskoy, A.; Oliver, P.; Nozzle Shocks, Disk Tearing and Streamers Drive Rapid Accretion in 3D GRMHD Simulations of Warped Thin Disks, submitted to The Astrophysical Journal in 10/2022,

Andalman, Z. L.; Liska, M. T. P.; Tchekhovskoy, A.; Coughlin, E. R.; Stone, N. Tidal Disruption Discs Formed and Fed by Stream-stream and Stream-disc Interactions in Global GRHD Simulations, 2022, Monthly Notices of the Royal Astronomical Society, Volume 510, Issue 2, pp. 1627-1648,


Undergraduate Poster Prize at the 20th meeting of the High Energy Astrophysics Division (HEAD-20).