Skip to main content

Zachary Andalman

Headshot of Zachary Andalman
Program Year:
2
University:
Princeton University
Field of Study:
Astrophysical Sciences
Advisor:
Eliot Quataert
Degree(s):
B.S. Physics, Yale University, 2023
Personal URL:
https://www.zandalman.com/

Practicum Experience(s)

Los Alamos National Laboratory (2024)

Practicum Supervisor(s):
Christopher
Fryer
Practicum Title:
Thunderstorm: Relativistic Electron Transport in Kilonovae Ejecta

Summary of Research

I am a Ph.D. student at the Princeton University Department of Astrophysical Sciences. I use a combination of simulations and semi-analytic models 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. I also am interested in kilonovae and high redshift galaxy formation.

Annual Program Review Abstracts

Publications

Andalman, Z. L.; Teyssier, R.; Dekel, A.; On the Origin of the High Star-Formation Efficiency in Massive Galaxies at Cosmic Dawn, submitted to the Monthly Notices of the Royal Astronomical Society in 10/2024, https://arxiv.org/pdf/2410.20530

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, The Astrophysical Journal, Volume 955, Issue 1, id. 72, https://iopscience.iop.org/article/10.3847/1538-4357/ace051/pdf

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, https://academic.oup.com/mnras/article/510/2/1627/6446812

Awards

1st place talk at the Los Alamos National Lab Center for Nonlinear Studies student talk series. 2024.

1st place undergraduate poster at the 20th meeting of the High Energy Astrophysics Division (HEAD-20). 2023.