About

I'm currently a graduate student at the Institute for Astronomy, a subset of the University of Hawai'i. Working with Dr. Ben Shappee, I study various transient-related objects including supernovae, variable stars, and tidal disruption events. In 2018, I was awarded the U.S. Dept. of Energy Computational Science Graduate Fellowship (DOE CSGF) to support my research. I obtained my B.S. in Applied Physics from the Appalachian State University in 2013, graduating as part of the Honors College. My undergraduate thesis work focused on finding variable white dwarfs using the new GALEX pipeline gPhoton, supervised by the excellent Drs. Dan Caton (App State) and Scott Fleming (STScI). Additionally, I dabbled in astronomy outreach software development (the OpenSpace project) and the chemical composition of star-forming regions under the guidance of Dr. Rachel Smith (NCMNS). My full CV can be found here.

Research Interests

I'm a member of the All-Sky Automated Survey for SuperNovae (ASAS-SN), working on all things transient. Additionally, I'm a founder of the Spectral Classification of Astronomical Transients (SCAT) survey which reports classifications of recently dicovered transients to the Transient Name Server. A list of SCAT classifications can be found here. My research interests include:

  • Progenitors of Type Ia supernovae
  • Light echoes from ancient explosions
  • Tidal disruption events
  • Evolved planetary systems
  • Pulsating white dwarfs
  • Machine learning methods

Recent Publications

Below are some of my recent publications. A comprehensive list can be found on my ADS page.

Progenitors of Type Ia supernovae

  • Clearing the Smoke: Nebular Spectra of 110 Type Ia Supernovae Disfavor Single Degenerate Progenitors (Tucker, Shappee, Vallely et al. 2019, MNRAS, in revision). ADS Link.
  • ASASSN-18tb: A Most Unusual Type Ia Supernovae Observed by TESS and SALT (Vallely, Fausnaugh, Jha et al. 2019, MNRAS). ADS Link.
  • No Stripped Companion Material in the Nebular Spectrum of the "Two-Component" Type Ia Supernova ASASSN-18bt (Tucker, Shappee and Wisniewski 2018, ApJL). ADS Link.

Variable white dwarf stars

  • Detections and Contraints on White Dwarf Variability From Time-series GALEX Observations (Rowan, Tucker, Shappee et al. 2019, MNRAS). ADS Link.
  • White Dwarf Variability with gPhoton: Pulsators (Tucker, Fleming, Pelisoli et al. 2018, MNRAS). ADS Link.

Miscellaneous topics

  • ASASSN-18ey: The Rise of a New Black Hole X-Ray Binary. (Tucker, Shappee, Holoien et al. 2018, ApJL). ADS Link.
  • Interstellar Interlopers: Number Density and Origin of `Oumuamua-like Objects (Do, Tucker, and Tonry 2018, ApJL). ADS Link.
  • gPhoton: The GALEX Photon Data Archive (Million, Fleming, Shiao et al. 2016, ApJ). ADS Link.

Contact Me