JOSEPH W BARNETT
Hi, I’m Joseph (Joe) Barnett. Welcome to my personal website.
I have Bachelor of Science degrees in mathematics and physics and a Master of Science degree in physics. This site is built to showcase the work that I’ve been involved with.
Below you’ll find a brief description of each research project I have participated in and a portfolio of my published work and GitHub projects, as well as a contact form.
The Math Perimeter
I am the owner of The Math Perimeter LLC, a business dedicated to making undergraduate mathematics accessible, engaging, and approachable for all learners. This is achieved through various forms of content, including articles, infographics, and email newsletters. You can learn more at https://themathperimeter.com/.
RESEARCH
- November 2015 – December 2018: Membership determination of open star clusters Berkeley 66 and M67, using data from WEBDA, Gaia, and Pan-STARRS (Austin, TX).
- May 2017 – August 2017: Imaging active galactic nuclei at radio frequencies using Difmap (Wuerzburg, Germany).
- January 2019 – December 2019: Membership determination of two overluminous white dwarfs in NGC 6633 using Gaia data (Commerce, TX).
- May 2019 – July 2021: Construction of the first semi-empirical initial-final mass relation for white dwarfs with helium atmospheres (Commerce, TX).
PUBLICATIONS
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The Initial-Final Mass Relation for Hydrogen-deficient White Dwarfs – When I submitted my master’s thesis it was concluded that more data were necessary to constrain the initial-final mass relation for white dwarfs with helium atmosphere. These data became available shortly after I graduated, and this study makes use of these data to obtain more precise results.
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Double degenerate candidates in the open cluster NGC 6633 – This is a conference proceeding for a talk I gave at IAUS 357 on two overluminous white dwarfs in NGC 6633.
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Determination of the Initial–Final Mass Relation for White Dwarfs with Helium Atmospheres -This is my master’s thesis where I constructed the first semi-empirical initial-final mass relation for white dwarfs with helium atmospheres. I was awarded a Master of Science in Physics in December 2020.
GITHUB
- Gaia to CSV – Searches the Gaia Database and automatically downloads the results as a CSV file.
- Numerical Methods Calculator – A calculator which implements various numerical methods and includes support for many special functions. Includes tools for root finding, interpolation, differentiation, and integration, as well as an ODE solver.
- Collatz – Generates the hailstone sequence for up to twenty integers using parallel programming and returns the total stopping time and upper bound for each.
Contact