Intro

I am a PhD candidate studying physics at Stanford University. At SLAC National Accelerator Laboratory, I work on observational cosmology research with the Simons Observatory, a cosmic microwave background telescope in Chile's Atacama Desert. I am interested in how cutting-edge computational tools can be used to study the history of our Universe and the fundamental laws of nature.

Before Stanford, I worked on experimental high-energy physics research with the ATLAS Experiment at CERN during my master's at the University of Cambridge and my bachelor's at Harvard University.

I am also particularly interested in science communication, broadly defined.

Research

At Stanford University, I am working towards a PhD in the observational cosmology group under the supervision of Prof. Zeesh Ahmed. I work at SLAC National Accelerator Laboratory on commissioning and characterizing the cryogenic detectors and readout system of the Simons Observatory in northern Chile. The Simons Observatory is a new suite of telescopes that study the cosmic microwave background. These telescopes will operate for the next decade, and we hope that they will soon provide some of the strongest constraints to date on the growth of structure in our Universe and on the presence of primordial gravitational waves, which would be evidence for a period of rapid expansion following the Big Bang.

Prior to Stanford, I completed a MPhil at the University of Cambridge where I worked on the ANUBIS project under the supervision of Prof. Oleg Brandt. This project proposes installing a new set of particle detectors to the ATLAS Experiment of the Large Hadron Collider at CERN—an exciting proposal in the search for new physics. Before that, I received a BA from Harvard University where I worked on upgrades to the ATLAS Experiment's muon spectrometer under the supervision of Prof. Melissa Franklin. These upgrades will enhance the experiment's ability to discover new physics in the upcoming era of the High-Luminosity Large Hadron Collider.

Science Communication

Scientists never work alone, and their work often has far-reaching implications. At Stanford, I am completing a Graduate Certificate in Policy Analysis to explore how federal policy can support large-scale scientific collaboration.

I co-organize an annual advocacy effort for high-energy physics. Each year, a group of physicists travels to Washington, D.C. to meet with Members of Congress and their staff to discuss the importance and impact of high-energy physics. We advocate for the P5 report and how it furthers the nation's interests.

At SLAC National Accelerator Laboratory, I give public tours of the lab. Come along to learn about how SLAC turned a cutting-edge particle accelerator into the world's most powerful X-ray laser...and discovered a fossil along the way!

During my work with the Simons Observatory, I have had the privilege of spending months in Chile's Atacama Desert, where our experiment enjoys dark skies in one of the world's highest and driest deserts. In an effort to strengthen connections between the American and Chilean astrophysics communities, a number of us at Stanford co-founded the KIPAC-Chile Engagement Program which funds visits to Chilean institutions for KIPAC scientists who are visiting experimental sites. Interested in hosting someone?

Throughout my journey, I have been fortunate to have been advised by a number of incredible professors, postdocs, and graduate students who have shaped my scientific career. I have tried my best to pay this forward as a teaching assistant for physics and computer science courses at Stanford University, the University of Cambridge, and Harvard University.

Publications

Selected Publications

  • Simons Observatory Collaboration. The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope. Journal of Cosmology and Astroparticle Physics 8, 34 (2025).https://doi.org/10.1088/1475-7516/2025/08/034
  • Bhandarkar, T., et al. Simons Observatory: Characterization of the Large Aperture Telescope Receiver. Astrophysical Journal Supplement Series 279, 34 (2025). http://doi.org/10.3847/1538-4365/ade0bd
  • Satterthwaite, T. P., et al. The Simons Observatory: Studies of Detector Yield and Readout Noise From the First Large-Scale Deployment of Microwave Multiplexing at the Large Aperture Telescope. Proceedings, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII (2024). https://doi.org/10.1117/12.3019196
  • ATLAS Collaboration. The ATLAS Experiment at the CERN Large Hadron Collider: A Description of the Detector Configuration for Run 3. Journal of Instrumentation 19, P05063 (2024). http://doi.org/10.1088/1748-0221/19/05/P05063
  • ATLAS Collaboration. Investigating the impact of 4D Tracking in ATLAS Beyond Run 4. Public Note, CERN (2023). https://cds.cern.ch/record/2870326
  • Satterthwaite, T. P. Sensitivity of the ANUBIS and ATLAS Detectors to Neutral Long-Lived Particles Produced in pp Collisions at the Large Hadron Collider. Master's thesis, University of Cambridge (2022). https://cds.cern.ch/record/2839063
  • Maksimova, N. A., Garrison, L. H., Eisenstein, D. J., Hadzhiyska, B., Bose, S., Satterthwaite, T. P. AbacusSummit: A Massive Set of High-Accuracy, High-Resolution N-Body Simulations. Monthly Notices of the Royal Astronomical Society 508, 3 (2021). https://doi.org/10.1093/mnras/stab2484
  • Satterthwaite, T. P. An Improved Charged Particle Track Reconstruction Algorithm for the Micromegas Detectors of the New Small Wheel for the ATLAS Experiment at the Large Hadron Collider. Bachelor’s thesis, Harvard College (2021). https://cds.cern.ch/record/2766672

Selected Presentations

  • Studies of Crosstalk in Microwave Frequency Multiplexing Readout Systems for CMB Observation. Poster. mm Universe 2025, Chicago, IL, 23 June 2025.
  • The Simons Observatory: Studies of Phase Drift in RF Transmission Lines from the First Large-Scale Deployment of Microwave Frequency Multiplexing for Cosmology. Poster. Low-Temperature Detectors 2025, Santa Fe, NM, 2 June 2025.
  • Probing the Large-Scale Structure of the Universe Using the Simons Observatory. Colloquium. NOIRLabs South Colloquium Series, La Serena, Chile, 31 January 2025.
  • Crosstalk in TES Microwave Frequency Multiplexing Readout Systems. Contributed Talk. CMB Calibration 2024 @ University of Milano-Bicocca, Milan, Italy, 7 November 2024.
  • The Simons Observatory: Studies of Detector Yield and Readout Noise From the First Large-Scale Deployment of Microwave Multiplexing at the Large Aperture Telescope. Poster. SPIE Astronomical Telescopes + Instrumentation, Yokohama, Japan, 19 June 2024.
  • Sensitivity of the Proposed ANUBIS Experiment to BSM LLPs at the LHC. Contributed Talk.Twelfth Workshop of the LLP Community, CERN/Remote, 3 November 2022.
  • Sensitivity of the ANUBIS Detector with Various Geometries to Beyond the Standard Model Long Lived Particles. Contributed Talk. Eleventh Workshop of the LLP Community, CERN/Remote, 1 June 2022.
  • Studies of Neutral Long-Lived Particles at ANUBIS. Poster. Cavendish Graduate Student Conference, University of Cambridge, Cambridge, United Kingdom, 25 November 2021.

In the Press

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i = 0;

while (!deck.isInOrder()) {
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    deck.shuffle();
    i++;
}

print 'It took ' + i + ' iterations to sort the deck.';

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Item One Ante turpis integer aliquet porttitor. 29.99
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