What can pre-solar grains tell us about the solar nebula?

Gary R. Huss, Bruce T. Draine

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Several types of pre-solar grains, grains that existed prior to solar system formation, have been found in the fine-grained components of primitive meteorites, interplanetary dust particles (IDPs), and comet samples. Known pre-solar components have isotopic compositions that reflect formation from the ejecta of evolved stars. Other pre-solar materials may have isotopic compositions very similar to solar system materials, making their identification as pre-solar grains problematic. Pre-solar materials exhibit a range of chemical and thermal resistance, so their relative abundances can be used to probe the conditions in the solar nebula. Detailed information on the relative abundances of pre-solar and solar-system materials can provide information on the temperatures, radiation environment, and degree of radial mixing in the early solar system.

Original languageEnglish (US)
Pages (from-to)353-356
Number of pages4
JournalProceedings of the International Astronomical Union
Issue number14
StatePublished - Aug 2006

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


  • ISM: abundances
  • ISM: dust
  • Solar system: formation
  • Spre-solar grains


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