Tom Zega

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.