Meteoritic silicon carbide: Pristine material from carbon stars

Roy S. Lewis; Sachiko Amari; Edward Anders

doi:10.1038/348293a0

Meteoritic silicon carbide: Pristine material from carbon stars

Roy S. Lewis
, Sachiko Amari
, Edward Anders

Department of Physics

Research output: Contribution to journal › Article › peer-review

140 Scopus citations

Abstract

All five noble gases in interstellar silicon carbide grains have grossly non-solar isotopic and elemental abundances that vary with grain size but are strikingly similar to calculated values for the helium-burning shell of low-mass carbon stars. Apparently these grains formed in carbon-star envelopes, and were impregnated with noble gas ions from a stellar wind. Meteoritic SiC provides a detailed record of nuclear and chemical processes in carbon stars.

Original language	English
Pages (from-to)	293-298
Number of pages	6
Journal	Nature
Volume	348
Issue number	6299
DOIs	https://doi.org/10.1038/348293a0
State	Published - 1990

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@article{1a6d320d9c0848af9eff30553f6488ae,

title = "Meteoritic silicon carbide: Pristine material from carbon stars",

abstract = "All five noble gases in interstellar silicon carbide grains have grossly non-solar isotopic and elemental abundances that vary with grain size but are strikingly similar to calculated values for the helium-burning shell of low-mass carbon stars. Apparently these grains formed in carbon-star envelopes, and were impregnated with noble gas ions from a stellar wind. Meteoritic SiC provides a detailed record of nuclear and chemical processes in carbon stars.",

author = "Lewis, \{Roy S.\} and Sachiko Amari and Edward Anders",

year = "1990",

doi = "10.1038/348293a0",

language = "English",

volume = "348",

pages = "293--298",

journal = "Nature",

issn = "0028-0836",

number = "6299",

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TY - JOUR

T1 - Meteoritic silicon carbide

T2 - Pristine material from carbon stars

AU - Lewis, Roy S.

AU - Amari, Sachiko

AU - Anders, Edward

PY - 1990

Y1 - 1990

N2 - All five noble gases in interstellar silicon carbide grains have grossly non-solar isotopic and elemental abundances that vary with grain size but are strikingly similar to calculated values for the helium-burning shell of low-mass carbon stars. Apparently these grains formed in carbon-star envelopes, and were impregnated with noble gas ions from a stellar wind. Meteoritic SiC provides a detailed record of nuclear and chemical processes in carbon stars.

AB - All five noble gases in interstellar silicon carbide grains have grossly non-solar isotopic and elemental abundances that vary with grain size but are strikingly similar to calculated values for the helium-burning shell of low-mass carbon stars. Apparently these grains formed in carbon-star envelopes, and were impregnated with noble gas ions from a stellar wind. Meteoritic SiC provides a detailed record of nuclear and chemical processes in carbon stars.

UR - https://www.scopus.com/pages/publications/0025673317

U2 - 10.1038/348293a0

DO - 10.1038/348293a0

M3 - Article

AN - SCOPUS:0025673317

SN - 0028-0836

VL - 348

SP - 293

EP - 298

JO - Nature

JF - Nature

IS - 6299

ER -

Meteoritic silicon carbide: Pristine material from carbon stars

Abstract

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