Tom Zega
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Associate Professor, Lunar and Planetary Laboratory
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Associate Professor of Planetary Sciences
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Associate Professor of Materials Science and Engineering
Courses
Universe and Humanity
ASTR 170B2 (Fall 2023)
PTYS 170B2 (Fall 2023)
Independent Study
MSE 399 (Spring 2022)
Chem of Solar System
PTYS 407 (Fall 2021)
PTYS 407 (Fall 2017)
Planetary Materials
MSE 513 (Spring 2022)
PTYS 413 (Spring 2022)
PTYS 413 (Spring 2020)
PTYS 513 (Spring 2022)
PTYS 513 (Spring 2020)
Directed Research
CHEM 492 (Spring 2018)
Senior Capstone
MSE 498 (Spring 2018)
MSE 498 (Fall 2017)
Cosmochemistry
PTYS 510A (Spring 2018)
PTYS 510A (Spring 2016)
Electron Microscopy
MSE 526 (Fall 2022)
MSE 526 (Spring 2021)
MSE 526 (Fall 2018)
PTYS 526 (Fall 2022)
PTYS 526 (Spring 2021)
PTYS 526 (Fall 2018)
Research
MSE 900 (Fall 2019)
MSE 900 (Spring 2019)
MSE 900 (Fall 2018)
MSE 900 (Spring 2018)
MSE 900 (Fall 2017)
MSE 900 (Spring 2017)
PTYS 900 (Spring 2020)
PTYS 900 (Fall 2019)
Dissertation
MSE 920 (Spring 2023)
MSE 920 (Fall 2022)
MSE 920 (Spring 2022)
MSE 920 (Fall 2021)
MSE 920 (Spring 2021)
MSE 920 (Fall 2020)
MSE 920 (Spring 2020)
PTYS 920 (Spring 2023)
PTYS 920 (Fall 2022)
PTYS 920 (Spring 2022)
PTYS 920 (Fall 2021)
PTYS 920 (Spring 2021)
PTYS 920 (Fall 2020)
PTYS 920 (Spring 2016)
Selected Publications
Journals/Publications
- Barnouin, O., Daly, M., Palmer, E., Gaskell, R., Weirich, J., Johnson, C., Al, A. M., Roberts, J., Perry, M., Susorney, H., Daly, R., Bierhaus, E., Seabrook, J., Espiritu, R., Nair, A., Nguyen, L., Neumann, G., Ernst, C., Boynton, W., , Nolan, M., et al. (2020). Author Correction: Shape of (101955) Bennu indicative of a rubble pile with internal stiffness. Nature Geoscience, 13(11), 764-764.
- Haenecour, P., Floss, C., Brearley, A. J., & Zega, T. J. (2020). The effects of secondary processing in the unique carbonaceous chondrite Miller Range 07687. Meteoritics and Planetary Science, 55(6), 1228-1256.
- Weber, J., Ramprasad, T., Domanik, K., Chang, Y., & Zega, T. (2020). 3D Microstructural and Microanalytical Analyses of Wark-Lovering Rims in the Allende Meteorite. Microscopy and Microanalysis, 26(S2), 2060-2061.
- Zega, T. (2020). Putting Planetary Materials into the Gap: Insights into Planetary and Stellar Processes from in Situ Measurements in the TEM. Microscopy and Microanalysis, 26(S2), 2050-2051.
- Zega, T. J., Haenecour, P., & Floss, C. (2020). An in situ investigation on the origins and processing of circumstellar oxide and silicate grains in carbonaceous chondrites. Meteoritics and Planetary Science, 55(6), 1207-1227.
- Bernal, J., Haenecour, P., Howe, J., Zega, T., Amari, S., & Ziurys, L. (2019). Formation of Interstellar C$_60$ from Silicon Carbide Circumstellar Grains. \apjl, 883(2), L43.
- Haenecour, P., Howe, J. Y., Zega, T. J., Amari, S., Lodders, K., Jos{\'e}, J., Kaji, K., Sunaoshi, T., & Muto, A. (2019). Laboratory evidence for co-condensed oxygen- and carbon-rich meteoritic stardust from nova outbursts. Nature Astronomy, 3, 626-630.
- Schrader, D. L., & Zega, T. J. (2019). Petrographic and compositional indicators of formation and alteration conditions from LL chondrite sulfides. \gca, 264, 165-179.
- Barnes, J., Thompson, M., McCubbin, F., Howe, J., Rahman, Z., Messenger, S., & Zega, T. (2018). Coordinated Microanalysis of Phosphates in High-Titanium Lunar Basalts. Microscopy and Microanalysis, 24, 2078-2079.
- Haenecour, P., Floss, C., Zega, T., Croat, T., Wang, A., Jolliff, B., & Carpenter, P. (2018). Presolar silicates in the matrix and fine-grained rims around chondrules in primitive CO3.0 chondrites: Evidence for pre-accretionary aqueous alteration of the rims in the solar nebula. \gca, 221, 379-405.
- Haenecour, P., Howe, J., Zega, T., Amari, S., Floss, C., Wallace, P., Lodders, K., Kaji, K., Sunaoshi, T., & Muto, A. (2018). Low-Voltage Energy-Dispersive X-ray Spectroscopy and Electron Energy-Loss Spectroscopy Analysis of Presolar Graphite Spherules. Microscopy and Microanalysis, 24, 2110-2111.
- Howe, J., Haenecour, P., Thompson, M., Dogel, S., Sunaoshi, T., Sagar, J., Hosseinkhannazer, H., & Zega, T. (2018). Nanoscale Investigation of Thermal Alteration of Chondritic Meteorites via Simultaneous Secondary and Transmitted Electron Imaging during In Situ Heating up to 1000 oC. Microscopy and Microanalysis, 24, 2102-2103.
- Mane, P., Wallace, S., Wallace, P., Chang, Y., Domanik, K., & Zega, T. (2018). Coordinated EBSD and TEM Analysis to Decipher Shock Deformation Effects in the Oldest Solids in the Solar System. Microscopy and Microanalysis, 24, 2092-2093.
- Nakamura-Messenger, K. .., Squyres, S., Pace, L., Messenger, S., Mitchell, D., Lauretta, D., Glavin, D., Houghton, M., Hayes, A., Nakamura, T., Dworkin, J., Nguyen, A., Clemett, S., Furukawa, Y., Kimura, Y., Takigawa, A., Blake, G., Zega, T., Mumma, M., , Milam, S., et al. (2018). The CAESAR New Frontiers Comet Sample Return Mission. Microscopy and Microanalysis, 24, 2104-2105.
- Ramprasad, T., Mane, P., & Zega, T. (2018). Aberration-corrected STEM/TEM Chemical Analysis and Imaging of Meteoritic Refractory Oxide Assemblages. Microscopy and Microanalysis, 24, 2090-2091.
Proceedings Publications
- Barnes, J., Wilbur, Z., Ong, L., Eckley, S., Brounce, M., Pomeroy, S., Crow, C., Boyce, J., Mosenfelder, J., Erickson, T., Hahn, T., Fires, M., & Zega, T. (2022, oct). A Multifaceted Approach to Investigating the Magmatic and Post-Magmatic History of Volatiles in Basalts from the Rim of Steno Crater. In LPI Contributions, 2704.
- Benner, M., Zega, T., & Ziurys, L. (2022, aug). Alteration of P-Bearing Phases in Allan Hills 77307 and Murchison Meteorites. In LPI Contributions, 2695.
- Bernal, J., Zega, T., & Ziurys, L. (2022, aug). Experimental Insights into the Formation of Fullerenes and Carbon Nanotubes in Interstellar Space. In LPI Contributions, 2695.
- Brounce}, M., Barnes, J., Crow, C., Economos, R., Erickson, T., Boyce, J., Wilbur, Z., McCubbin, F., Mosenfelder, J., Zega, T., & Team, {. S. (2022, mar). Measuring the Oxidation State of Sulfur in Apatites in Thin Sections of Meteorites versus Apollo Rocks. In 53rd Lunar and Planetary Science Conference, 2678.
- Che, S., & Zega, T. (2022, aug). In-situ Formation of Halite in the Sidi El Habib 001 Ordinary Chondrite. In LPI Contributions, 2695.
- Che, S., & Zega, T. (2022, mar). NaCl in an Itokawa Particle: Terrestrial or Asteroidal?. In 53rd Lunar and Planetary Science Conference, 2678.
- Manga, V., & Zega, T. (2022, mar). First-Principles Thermodynamic of Ultra-Refractory Inclusions: Condensation Temperature of Allendeite. In 53rd Lunar and Planetary Science Conference, 2678.
- Manga, V., Ramprasad, T., & Zega, T. (2022, aug). Condensation Phase Diagram of Ultra-Refractory Materials Pertaining to the High Temperature Region of Early Solar Protoplanetary Disk. In LPI Contributions, 2695.
- Noguchi, T., Matsumoto, T., Miyake, A., Igami, Y., Haruta, M., Saito, H., Hata, S., Seto, Y., Miyahara, M., Tomioka, N., Ishii, H., Bradley, J., Ohtaki, K., Dobric{\u{a}}, E., Leroux, H., LeGuillou, C., Jacob, D., Pe{\~na}, F., Laforet, S., , Marinova, M., et al. (2022, aug). Dehydration Decomposition of Phyllosilicates in the C-Type Asteroid Ryugu Material by Space Weathering. In LPI Contributions, 2695.
- Noguchi, T., Matsumoto, T., Miyake, A., Igami, Y., Haruta, M., Saito, H., Hata, S., Seto, Y., Miyahara, M., Tomioka, N., Ishii, H., Bradley, J., Otaki, K., Dobric{\u{a}}, E., Leroux, H., Le Guillou, C., Jacob, D., Marinova, M., Pe{\~na}, F., , Langenhorst, F., et al. (2022, mar). Mineralogy and Space Weathering of Fine Fraction Recovered from Asteroid (162173) Ryugu. In 53rd Lunar and Planetary Science Conference, 2678.
- Pomeroy, S., Crow, C., Wilbur, Z., Barnes, J., Boyce, J., Mosenfelder, J., Brounce, M., Erikson, T., & Zega, T. (2022, mar). Chronology of Steno Crater Basalts. In 53rd Lunar and Planetary Science Conference, 2678.
- Ramprasad, T., Seifert, L., Mane, P., & Zega, T. (2022, mar). A Transmission Electron Microscopy Study of a Refractory Metal Grain from a Calcium-Aluminum-Rich Inclusion in the Leoville CV3 Chondrite. In 53rd Lunar and Planetary Science Conference, 2678.
- Schrader, D., Davidson, J., Foustoukos, D., Alexander, C. O., Torrano, Z., Cloutis, E., Applin, D., Zega, T., Nakamura, T., & Matsuoka, M. (2022, mar). Tarda and Tagish Lake: Samples from the Same Outer Solar System Asteroid?. In 53rd Lunar and Planetary Science Conference, 2678.
- Schrader, D., Zega, T., Davidson, J., McCoy, T., & Domanik, K. (2022, aug). Pentlandite in Chondrites: A Compositional Indicator of Oxygen Fugacity. In LPI Contributions, 2695.
- Seifert, L., Haenecour, P., Ramprasad, T., & Zega, T. (2022, mar). Transmission Electron Microscopy Study of a Presolar Silicate from the Miller Range 07687 Chondrite. In 53rd Lunar and Planetary Science Conference, 2678.
Poster Presentations
- Asaduzzaman, A., Zega, T., Runge, K., & Muralidharan, K. (2014, March). Synthesis and Delivery of Amino Acids to the Early Earth via Surface Catalysis: A Computational Study. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Haenecour, P., Floss, C., Jolliff, B., Zega, T., Bose, M., & Carpenter, P. (2014, March). Presolar Silicates as Tracers of the Formation of Fine-Grained Chondrule Rims in CO3 Chondrites. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Miller, K., Thompson, M., Lauretta, D., & Zega, T. (2014, March). Conditions for Formation of Chalcopyrite in the Rumuruti Chondrites. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Thompson, M., & Zega, T. (2014, March). Determining the Oxidation State of Iron Nanoparticles in Mature Lunar Soil Through Electron Energy-Loss Spectroscopy. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Thompson, M., Christoffersen, R., Zega, T., & Keller, L. (2014, March). Nanoscale Analysis of Space-Weathering Features in Soils from Itokawa. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Zega, T. (2014, June). Coordinated analysis of planetary materials at the nanoscale. 2014 Goldschmidt Conference.
- Zega, T., Haenecour, P., Floss, C., & Stroud, R. (2014, March). Extraction and Analysis of Presolar Grains from the LAP 031117 CO3.0 Chondrite. 45th Lunar and Planetary Science Conference. The Woodlands, TX.
- Asaduzzaman, A., Muralidharan, K., Runge, K., & Zega, T. (2013, March). A Computational Exploration on the Attachment of Organics to Minerals: Implications for the Delivery of Organics to Meteorite Parent Bodies and the Early Earth. 44th Lunar and Planetary Science Conference. The Woodlands, TX.
- Berger, E., Lauretta, D., Zega, T., & Keller, L. (2013, March). FIB-TEM Investigations of Fe-Ni-Sulfides in the CI Chondrites Alais and Orgueil. 44th Lunar and Planetary Science Conference. The Woodlands, TX.
- Bolser, D., Zega, T., Simon, S., & Grossman, L. (2013, July). Analysis of Refractory Inclusions in the Allende and Axtell CV3 Chondrites via Electron-Backscatter Diffraction. 76th Annual Meeting of the Meteoritical Society. Edmonton, Canada.
- Bose, M., Zega, T., & Williams, P. (2013, March). Effects of Secondary Processes on the Circumstellar and Interstellar Grains in QUE 97416. 44th Lunar and Planetary Science Conference. The Woodlands, TX.
- Bose, M., Zega, T., Andronokov, A., & Williams, P. (2013, March). A Large Presolar Oxide Grain Identified in Allende CV3 Chondrite. 44th Lunar and Planetary Science Conference. The Woodlands, TX.
- Thompson, M., & Zega, T. (2013, March). Microstructural and Chemical Analysis of Soils from Itokawa: Evidence for Space Weathering. 44th Lunar and Planetary Science Conference. The Woodlands, TX.
- Zega, T. (2013, March). From the bottom up: Decoding the physical and chemical history of the early solar system and ancient stars through nanoscale characterization. 2013 Arizona Imaging and Microanalysis Society Conference. Tucson, AZ.
- Zega, T. (2013, May). Decoding the thermodynamics of ancient circumstellar envelopes via nanoscale analysis of presolar stardust grains. NOT PROVIDED.