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Lan Anh Ngoc Nguyen


Scientist


Contact Information

Jacobs
lan-anh.n.nguyen@nasa.gov
Phone: 281.483.9446
Fax: 281-483-1573

ARES Lan Anh Ngoc Nguyen

Education

DegreeArea of StudySchoolYear
Ph.D.Earth and Planetary SciencesWashington University2005
B.A.ChemistryUniversity of North Carolina at Chapel Hill2000

Research/Engineering Interests

Dr. Nguyen‘s research interests lie in the isotopic and chemical characterization of presolar silicate grains identified in primitive astromaterials. Presolar grains originated in the outflows of evolved stars and are unique vessels into the history of stellar environments. Isotopic analyses of multiple elements within individual grains by secondary ion mass spectrometry (SIMS) allow for identification of the grains‘ stellar sources, and the study of stellar evolution, nucleosynthesis, mixing processes, and Galactic chemical evolution. Coordinated chemical and mineralogical studies are conducted by transmission electron microscopy (TEM) to study dust formation, chemical and physical conditions of circumstellar atmospheres, and dust processing in the interstellar medium and the solar system. These analyses are aided by use of the focused ion beam (FIB).


Selected Publications

Nguyen A. N. Messenger S. (2011) "Presolar history recorded in extraterrestrial materials." Elements 7, 17-22.

Nguyen A. N., Nittler L. R., Stadermann F. J., Stroud R. M., and Alexander C. M. O'D. (2010) "Coordinated analysis of presolar grains in the Allan Hills 77307 and Queen Elizabeth Range 99177 meteorites." Astrophysical Journal 719, 166-189.

Busemann H., Nguyen A. N., Cody G. D., Hoppe P., Kilcoyne A. L. D., Stroud R. M., Zega T. J., and Nittler L. R. (2009)  "Ultra-primitive interplanetary dust particles from the comet 26P/Grigg-Skjellerup dust stream collection." Earth & Planetary Science Letters 288, 44-57.

Nittler L. R., Alexander C. M. O.D, Gallino R., Hoppe P., Nguyen A. N., Stadermann F. J., and Zinner E. K. (2008) "Aluminum-, calcium-, and titanium-rich oxide stardust in ordinary chondrite meteorites." Astrophysical Journal 682, 1450-1478.

Meyer B. S., Nittler L. R., Nguyen A. N., and Messenger S. (2008) "Nucleosynthesis and chemical evolution of oxygen." Oxygen in the Solar System, Vol. 68 (ed. G. J. MacPherson, D. W. Mittlefehldt, J. H. Jones, and S. B. Simon), pp. 31-53.  The Mineralogical Society of America.

Zinner E., Amari S., Guinness R., Jennings C., Mertz A. F., Nguyen A. N., Gallino R., Hoppe P., Lugaro M., Nittler L. R., and Lewis R. S. (2007) "NanoSIMS isotopic analysis of small presolar grains: Search for Si3N4 grains from AGB stars and Al and Ti isotopic compositions of rare presolar SiC grains." Geochimica et Cosmochimica Acta 71, 4786-4813.

Nguyen A. N., Stadermann F. J., Zinner E., Stroud R. M., Alexander C. M. O.D., and Nittler L. R. (2007) "Characterization of presolar silicate and oxide grains in primitive carbonaceous chondrites." Astrophysical Journal 656, 1223-1240.

Nguyen A., Zinner E., and Lewis R. S. (2003) "Identification of small presolar spinel and corundum grains by isotopic raster imaging." Publications of the Astronomical Society of Australia 20, 382-388.