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Skip to content Our PeopleMenu Close Explore AcademicsDepartments & ProgramsMajors & MinorsGraduate Degrees and ProgramsStudent ResourcesGetting StartedAcademic PlanningScholarships, Fellowships & AwardsExperiential LearningGraduation & Post-Graduate AdvisingForms & PoliciesOffice of Graduate Studies in Arts & SciencesThe AmpersandAwards & NotablesCampus LifeHold That Thought podcastThe Ampersand Magazine Our EventsCommencement Performances & ShowsOur PeopleFaculty DirectoryStaff DirectoryFaculty & Staff ResourcesAwards & RecognitionCommittees & CouncilsFaculty Activity ReportingTenure & PromotionGraduate Student ResourcesOffice of Graduate Studies in Arts & SciencesDegrees and ProgramsGraduate AdmissionsArts & Sciences Strategic PlanThere are no boundaries to what you can achieve with a degree from Arts & Sciences.Apply TodayHomeAbout Arts & SciencesOur Alumni NetworkAcademic CalendarHow to giveContact Us Arts & Sciences Graduate Studies in A&SSachiko AmariResearch Professor of PhysicsPhD, Kobe University ME, Waseda University, Japan BE, Waseda University, JapanResearch Group Website Publications List Department of Physics McDonnell Center for the Space Sciences research interests:Cosmochemistry Presolar Grainscontact info:Email: [email protected]: 314-935-6248Fax: 314-935-4083Office: Compton 454Get Directionsmailing address:Washington University MSC 1105-109-04 One Brookings Drive St. Louis, MO 63130-4899Sachiko Amari’s research interests revolve around the formation and the early history of the solar system and beyond. The bulk of Amari's work has been concentrated on presolar grains, which are defined as stardust formed in stellar outflow/ejecta, and were incorporated into primitive meteorites. These presolar grains retain the information of their parent stars. By studying isotopic ratios of presolar grains, we can learn nucleosynthesis in stars, mixing in stellar ejecta, and the Galactic chemical evolution (=temporal variation of abundances of elements and isotopes in the Galaxy). She uses secondary ion mass spectrometry to study these grains. Another topic which Amari started investigating is the origin of volatiles, especially noble gases, in the solar system. Noble gases in meteorites are concentrated in a very small portion of meteorites. She is trying to identify the material and the trapping mechanisms of noble gases, which will give us insight into the processes that occurred in the early solar system. in the news:12.8.21Science research roundup: November and December 2021Back to AmpersandQuick LinksExplore AcademicsStudent ResourcesThe AmpersandEventsOur PeopleAbout A&SContactAcademic CalendarA&S ComputingUniversity DirectoryUniversity LibrariesInside ArtSciArts & Sciences Strategic PlanEmployment OpportunitiesCopyright 2024 by:Arts & Sciences at Washington University in St. LouisFollow Arts & SciencesInstagramFacebookTwitterLinkedInYouTubeLet your curiosity lead the way.Find out how to apply and get started todayApply Now1 Brookings Drive / St. Louis, MO 63130 / wustl.edu