The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations

M. E. Wiedenbeck; N. E. Yanasak; A. C. Cummings; A. J. Davis; J. S. George; R. A. Leske; R. A. Mewaldt; E. C. Stone; P. L. Hink; M. H. Israel; M. Lijowski; E. R. Christian; T. T. Von Rosenvinge

doi:10.1023/A:1013816209004

The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations

M. E. Wiedenbeck, N. E. Yanasak, A. C. Cummings, A. J. Davis, J. S. George, R. A. Leske, R. A. Mewaldt, E. C. Stone, P. L. Hink, M. H. Israel, M. Lijowski, E. R. Christian, T. T. Von Rosenvinge

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

38 Scopus citations

Abstract

Cosmic-ray isotope observations from NASA's Advanced Composition Explorer (ACE) mission have been used to investigate the composition of cosmic-ray source material. Source abundances relative to ⁵⁶Fe are reported for eleven isotopes of Ca, Fe, Co, and Ni, including the very rare isotopes ⁴⁸Ca and ⁶⁴Ni. Although the source abundances range over a factor ∼ 10⁴, most of the ratios to ⁵⁶Fe are consistent with solar-system values to within ∼ 20%. However, there are some notable differences, the most significant being an excess of ∼ (70 ± 30)% relative to the solar system for the cosmic-ray source ratio ⁵⁸Fe/⁵⁶Fe. The possible association of such an excess with a contribution to the cosmic-ray source from Wolf-Rayet star ejecta is discussed.

Original language	English (US)
Pages (from-to)	15-26
Number of pages	12
Journal	Space Science Reviews
Volume	99
Issue number	1-4
DOIs	https://doi.org/10.1023/A:1013816209004
State	Published - 2001
Externally published	Yes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1023/A:1013816209004

Cite this

Wiedenbeck, M. E., Yanasak, N. E., Cummings, A. C., Davis, A. J., George, J. S., Leske, R. A., Mewaldt, R. A., Stone, E. C., Hink, P. L., Israel, M. H., Lijowski, M., Christian, E. R., & Von Rosenvinge, T. T. (2001). The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations. Space Science Reviews, 99(1-4), 15-26. https://doi.org/10.1023/A:1013816209004

Wiedenbeck, ME, Yanasak, NE, Cummings, AC, Davis, AJ, George, JS, Leske, RA, Mewaldt, RA, Stone, EC, Hink, PL, Israel, MH, Lijowski, M, Christian, ER & Von Rosenvinge, TT 2001, 'The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations', Space Science Reviews, vol. 99, no. 1-4, pp. 15-26. https://doi.org/10.1023/A:1013816209004

@article{64ec3a2a201c4af4a0b7fcce3b96c94a,

title = "The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations",

abstract = "Cosmic-ray isotope observations from NASA's Advanced Composition Explorer (ACE) mission have been used to investigate the composition of cosmic-ray source material. Source abundances relative to 56Fe are reported for eleven isotopes of Ca, Fe, Co, and Ni, including the very rare isotopes 48Ca and 64Ni. Although the source abundances range over a factor ∼ 104, most of the ratios to 56Fe are consistent with solar-system values to within ∼ 20%. However, there are some notable differences, the most significant being an excess of ∼ (70 ± 30)% relative to the solar system for the cosmic-ray source ratio 58Fe/56Fe. The possible association of such an excess with a contribution to the cosmic-ray source from Wolf-Rayet star ejecta is discussed.",

author = "Wiedenbeck, {M. E.} and Yanasak, {N. E.} and Cummings, {A. C.} and Davis, {A. J.} and George, {J. S.} and Leske, {R. A.} and Mewaldt, {R. A.} and Stone, {E. C.} and Hink, {P. L.} and Israel, {M. H.} and M. Lijowski and Christian, {E. R.} and {Von Rosenvinge}, {T. T.}",

note = "Funding Information: We are grateful to the large group of dedicated individuals that participated in the development of the CRIS instrument (listed in Stone et al., 1998). We also thank J. Klarmann for contributions to the CRIS data analysis. This research was supported by the National Aeronautics and Space Administration at the California Institute of Technology (under grant NAG5-6912), the Jet Propulsion Laboratory, the Goddard Space Flight Center, and Washington University.",

year = "2001",

doi = "10.1023/A:1013816209004",

language = "English (US)",

volume = "99",

pages = "15--26",

journal = "Space Science Reviews",

issn = "0038-6308",

publisher = "Springer Netherlands",

number = "1-4",

}

TY - JOUR

T1 - The origin of primary cosmic rays

T2 - Constraints from ACE elemental and isotopic composition observations

AU - Wiedenbeck, M. E.

AU - Yanasak, N. E.

AU - Cummings, A. C.

AU - Davis, A. J.

AU - George, J. S.

AU - Leske, R. A.

AU - Mewaldt, R. A.

AU - Stone, E. C.

AU - Hink, P. L.

AU - Israel, M. H.

AU - Lijowski, M.

AU - Christian, E. R.

AU - Von Rosenvinge, T. T.

N1 - Funding Information: We are grateful to the large group of dedicated individuals that participated in the development of the CRIS instrument (listed in Stone et al., 1998). We also thank J. Klarmann for contributions to the CRIS data analysis. This research was supported by the National Aeronautics and Space Administration at the California Institute of Technology (under grant NAG5-6912), the Jet Propulsion Laboratory, the Goddard Space Flight Center, and Washington University.

PY - 2001

Y1 - 2001

N2 - Cosmic-ray isotope observations from NASA's Advanced Composition Explorer (ACE) mission have been used to investigate the composition of cosmic-ray source material. Source abundances relative to 56Fe are reported for eleven isotopes of Ca, Fe, Co, and Ni, including the very rare isotopes 48Ca and 64Ni. Although the source abundances range over a factor ∼ 104, most of the ratios to 56Fe are consistent with solar-system values to within ∼ 20%. However, there are some notable differences, the most significant being an excess of ∼ (70 ± 30)% relative to the solar system for the cosmic-ray source ratio 58Fe/56Fe. The possible association of such an excess with a contribution to the cosmic-ray source from Wolf-Rayet star ejecta is discussed.

AB - Cosmic-ray isotope observations from NASA's Advanced Composition Explorer (ACE) mission have been used to investigate the composition of cosmic-ray source material. Source abundances relative to 56Fe are reported for eleven isotopes of Ca, Fe, Co, and Ni, including the very rare isotopes 48Ca and 64Ni. Although the source abundances range over a factor ∼ 104, most of the ratios to 56Fe are consistent with solar-system values to within ∼ 20%. However, there are some notable differences, the most significant being an excess of ∼ (70 ± 30)% relative to the solar system for the cosmic-ray source ratio 58Fe/56Fe. The possible association of such an excess with a contribution to the cosmic-ray source from Wolf-Rayet star ejecta is discussed.

UR - http://www.scopus.com/inward/record.url?scp=0035716427&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035716427&partnerID=8YFLogxK

U2 - 10.1023/A:1013816209004

DO - 10.1023/A:1013816209004

M3 - Article

AN - SCOPUS:0035716427

SN - 0038-6308

VL - 99

SP - 15

EP - 26

JO - Space Science Reviews

JF - Space Science Reviews

IS - 1-4

ER -

The origin of primary cosmic rays: Constraints from ACE elemental and isotopic composition observations

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this