Tom Wagg

Astrophysics PhD Candidate at the University of Washington

About

Linking binary evolution and galactic dynamics

I am broadly interested in constraining binary stellar evolution, in particular most recently by using the kinematics of stars and compact objects. With this goal in mind, my PhD thesis focuses on developing, and applying, self-consistent population synthesis and galactic dynamics simulations with a new framework I created called cogsworth.

I've applied this framework to a variety of problems so far, from runaway stars to supernova feedback, in order to better understand binary stellar evolution and the impact it can have on its environment.

From asteroseismology to gravitational waves

Given the complexity of the problem, it's important to constrain binary evolution using many different techniques. In a recent paper, I used detailed stellar evolution models to show, for the first time, that mass transfer leaves an imprint on the asteroseismic signals of a star for the rest of its main sequence.

Previously I simulated populations of double compact objects in the Milky Way and used LEGWORK, a Python package that I developed, to estimate the subpopulations that would be detectable by the upcoming LISA gravitational wave detector. I showed how these populations varied with different binary physics for comparison with the actual observed populations.

Open-source software development

I'm passionate about developing and applying open-source software in my work. I'm the lead developer for two codes I mentioned above: cogsworth and LEGWORK. I contribute to a number of other projects, including COMPAS, COSMIC, and gala.

I'm also the co-creator of the Software Citation Station, a tool to help researchers generate citations for the software they use in their work.

Beyond the science

I'm originally from the luscious English countryside near Newcastle-under-Lyme and, thanks in no small part to a passionate science teacher mum, I grew up wanting to understand everything around me, which quickly led me to Physics. I play on two field hockey teams in Seattle and enjoy hiking and camping in the beautiful Pacific Northwest. In typical astronomer fashion I'm also rather partial to some bouldering!

I invite you to check out my main page to learn more about my current and recent projects!

Latest CV (September 2023)

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Publications

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First-author papers

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Co-author papers

Education

Harvard University

A.B in Physics and AstrophysicsSecondary in Computer ScienceHighest Honours2016-2020
Awards and Fellowships

Leo Goldberg PrizeBloomberg Creative Science PrizeAlex G. Booth FellowshipHaase FellowshipHarvard College Research Program Grant


Newcastle-under-Lyme School

Head BoyPrefectHouse Captain2004-2016
Qualifications

5 A Levels in Physics, Maths, Further Maths, EPQ and Latin with 4A*s and an A

13 GCSEs with 13A*s - a record for the school

Awards

Duke of Edinburgh Bronze, Silver and Gold AwardsInnovation PrizeLeadership PrizePhysics and Latin Prizes

Positions

Student CouncilField Hockey Vice CaptainCricket Team Bowler

Presentations

A list of presentations that I've given about my research
LEGWORK: A python package for computing the evolution and detectability of stellar-origin gravitational-wave sources with space-based detectorsUW Bothell Gravitational Wave GroupJanuary 2022
LEGWORK: A python package for computing the evolution and detectability of stellar-origin gravitational-wave sources with space-based detectorsLECS Software Series #1January 2022
Gravitational wave sources in our Galactic backyard: Predictions for BHBH, BHNS and NSNS binaries detectable with LISALISA Community TeleconDecember 2021
Gravitational wave sources in our Galactic backyard: Predictions for BHBH, BHNS and NSNS binaries detectable with LISASESTAS Seminar at Max Planck InstituteNovember 2021
LEGWORK: A python package for computing the evolution and detectability of stellar-origin gravitational-wave sources with space-based detectorsTianQin Research Center for Gravitational PhysicsNovember 2021
Predictions for detecting BH-NS binaries with LISAWhere are the BH-NS binaries?EAS 2021June 2021
LEGWORK: A python package for computing the evolution and detectability of stellar-origin gravitational-wave sources with space-based detectorsCCA Gravitational Wave Group MeetingMay 2021
Black Hole—Neutron Star Binaries in LISAStellar Multiples and PlanetsThe 13th International LISA SymposiumSeptember 2020

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Galactic DCO paper presentation

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LEGWORK presentation

Work Experience

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Senior Programmer

Senior Programmer


Responsibilities
Create automation tools that increase the efficiency of monotonous or repetitive tasks.
Accomplishments
Designed Chrome Extension to automate Alma library system, which has been adopted by multiple libraries and is critical to the operation of the Judaica Division. You can find more details or install it here.
Contact
Reach out to Elizabeth Vernon at juddiv@fas.harvard.edu
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Teaching Fellow

Teaching Fellow


Responsibilities
Teach a section, run office hours and grade problem sets for introductory computer systems class
Accomplishments
Honed teaching abilities by leadings sections of roughly twenty students in consolidating lecture material. Helped students to improve through meetings in office hours or advice through remote Piazza posts.
Contact
Contact Professor Eddie Kohler at kohler@seas.harvard.edu
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Tutor

Tutor


Responsibilities
Tutor local students in Physics, Maths and Computer Science
Accomplishments
Consistently helped students to improve their understanding of confusing topics. Rewarded by HSA manager thanks to consistent positive reviews from students.
Contact
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Research Fellow

Research Fellow


Responsibilities
Work on various research projects related to massive stars and gravitational wave progenitors.
Accomplishments
Create Python package LEGWORK for working with LISA sources. Worked with COMPAS team to improve wind prescriptions in COMPAS and handling of low mass stars. Wrote first-author paper on the Galactic population of double compact objects that will be observable with LISA.
Contact
Contact Professor Selma de Mink at sedemink@mpa-garching.mpg.de
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