About me

I am a space scientist and data analyst. I develop operations software for NASA science missions and use multiwavelength data from space and ground-based telescopes around the world to study transient events and high-energy phenomena in the universe. I am passionate about developing innovative software, technology, and instrumentation to enable scientific discoveries across a range of disciplines.

I recently joined the Space Mission Directorate at Southwest Research Institute in Boulder after graduating from the George Washington University (GWU) with a B.S. in Astronomy & Astrophysics (plus dual minors in Mathematics and Mind/Brain Studies). At SwRI, I work in the science operations center (SOC) for NASA's Discovery-class Lucy mission to the Trojan asteroids, developing science data processing and archiving pipelines, as well as in the mission operations center (MOC) for PUNCH (Polarimeter to Unify the Corona and Heliosphere), a NASA heliophysics Small Explorer mission set to launch in 2025.

During undergrad, I garnered experience in space science and astrophysical research, software development, data analysis, and instrumentation design, while taking coursework in physics, observational astronomy, mechanical engineering, mathematics, and machine learning. I led multiple successful proposals for funding to conduct research projects spanning topics from astrophysical data analysis to scientific instrumentation development.

I've also previously worked in several academic and research labs, including the University of Washington (UW) Applied Physics Laboratory writing software for computer vision applications, and the UW Advanced Propulsion Lab prototyping microsatellite testbed systems. I have also spent time working in a telescope store, selling astronomy equipment and optical instruments.


Professional/research chronology

2022 – present Southwest Research Institute Analyst Boulder, CO
2021 – 2022 GWU Department of Physics Luther Rice Research Fellow Washington, DC
Su 2019 UW Applied Physics Laboratory Research Assistant Seattle, WA
Su 2016 UW Advanced Propulsion Lab Student Assistant Seattle, WA

Educational history

2022 B.S. Astronomy & Astrophysics George Washington University Washington, DC

me
Caden Gobat

cgobat swri . edu

GitHub ORCiD
LinkedIn NASA ADS

Space Mission Directorate
Southwest Research Institute
1050 Walnut St, Suite 300
Boulder, CO 80302, U.S.A.

About my work

Astrophysics

My primary research work at GWU involved searching for and analyzing the afterglows of short gamma-ray bursts—powerful, extragalactic explosions resulting from binary neutron star merger events—using data from the NASA Neil Gehrels Swift Observatory's X-ray Telescope (XRT) and a number of optical observatories around the world. This work led to a conference presentation at the American Astronomical Society's 19th High-Energy Astrophysics Division meeting in Pittsburgh, as well as a first-author publication in Monthly Notices of the Royal Astronomical Society. For more, see my GitHub repository for the project, my detailed writeup of the research, or the paper itself.

I also led the development of a public catalog of Be stars (massive B-type stars with distinct emission line spectra) that have been detected in X-rays, a characteristic that hints at the presence of a compact object binary partner such as a neutron star or black hole. The methodology behind the construction and open release of the catalog is described in a paper published in Research Notes of the American Astronomical Society. The details of this work can be found on GitHub as well.

Software

I am the author of asymmetric_uncertainty, a Python package that provides functionality for handling (and propagating) asymmetric numerical uncertainties (for example, the quantity 3.0+0.2−0.4). This tool has wide-ranging applications in many scientific and computational fields, and is designed for interoperability with other common Python libraries (such as numpy and matplotlib). The package is also capable of representing upper and lower limit quantities, for example by setting one side of the error to ± and the other to 0. The software is indexed on the Astrophysics Source Code Library, with ID [ascl:2208.005].

Instrumentation

As a board member of the GWU chapter of the Society of Physics Students (SPS), I led a successful proposal to design, build, and launch a high-altitude ballon-based muon detector. Muons (μ) are charged elementary particles that are created as byproducts of collisions between incoming cosmic rays and molecules in the Earth's upper atmosphere, after which they shower down towards the ground at relativistic speeds. The instrument uses scintillator and Silicon photomultiplier technology—plus a complementary suite of in situ atmospheric sensors—to investigate the effects of altitude on muon concentration, and the degree to which muon flux is attenuated by the atmosphere.

Some other highlights of my instrumentation work include a slitless spectrograph for use with amateur-class (≲0.5-m) telescopes and general-purpose CCD/CMOS cameras, a multispectral camera system for mapping thermal emission using simultaneous visible/inrared imaging, and an end-to-end experimental design/apparatus for performing photometry and light-curve analysis to characterize LED output/response as a function of electrical input.

Publications & Presentations

  • The Lucy Mission Science Operations Center. J. Wm. Parker, E. Birath, K. Crombie, A. Egan, C. Gobat, et al (October 2023). BAAS, 55(8):118.07. bibcode:2023DPS....5511807P.
  • Design & implementation of the Lucy mission PDS4 archive. C. Gobat, M. K. Crombie, J. Wm. Parker, & D. Kaufmann (June 2023). 6th Planetary Data Workshop, id. 7073.
  • Optical darkness in short-duration 𝛾-ray bursts. C. Gobat, A.J. van der Horst, & D. Fitzpatrick (April 2023). MNRAS, 523(1):775. bibcode:2023MNRAS.523..775G
  • Asymmetric Uncertainty: Handling nonstandard numerical uncertainties. C. Gobat (August 2022). Astrophysics Source Code Library, ascl:2208.005. bibcode:2022ascl.soft08005G
  • Catalog of X-ray detected Be stars (XDBS). C. Gobat, et al (August 2022). RNAAS, 6(8):163. bibcode:2022RNAAS...6..163G
  • Optical darkness in short-duration gamma-ray bursts. C. Gobat & A.J. van der Horst (April 2022) BAAS, 54(3):111.02. bibcode:2022HEAD...1911102G