Mairin Hynes

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Mairin Hynes
Laboratory for Space Sciences
Physics Department, CB 1105
Washington University
1 Brookings Drive
St. Louis, MO 63130-4899, USA

Ph.D., Washington University, 2010

Crow 214

(314) 935-4495

(314) 935-4495

Mairin obtained her Ph.D. in 2010 from the Washington University Physics Department. She currently spends most of her time teaching phyiscs at Wash U and working with the undergraduate physics program.

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Mairin also continues her work on combined isotopic and microstructural analysis of different types of presolar SiC grains, which originated in various astrophysical sources, including asymptotic giant branch (AGB) stars, born-again AGB stars, supernovae, and J stars. This work focuses on characterizing the microstructural, crystallographic, chemical, and isotopic compositions of micron-sized presolar SiC, as well as the nanometer-scale subgrains within these grains. This is made possible by the high spatial resolution of the transmission electron microscope (TEM). Little is currently known about subgrains in presolar SiC and Mairin’s research has revealed new types of subgrains, including Fe,Ni silicides and oldhamite. This information provides insight into conditions present in the parent stars while these grains condensed, which in turn can be compared to theoretical models of stellar evolution.

Hynes K. M., Croat T. K., Amari S., Mertz A. F., and Bernatowicz T. J. (2010) Structural and isotopic microanalysis of presolar SiC from supernovae. Meteorit. Planet. Sci. 45, 596-614.

Selected Publications