The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
COSMIC-RAY PROTON AND HELIUM SPECTRA FROM THE FIRST CREAM FLIGHT
Open accessAbstract
Cosmic-ray proton and helium spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass experiment flown for 42 days in Antarctica in the 2004–2005 austral summer season. High-energy cosmic-ray data were collected at an average altitude of ∼38.5 km with an average atmospheric overburden of ∼3.9 g cm −2 . Individual elements are clearly separated with a charge resolution of ∼0.15 e (in charge units) and ∼0.2 e for protons and helium nuclei, respectively. The measured spectra at the top of the atmosphere are represented by power laws with a spectral index of −2.66 ± 0.02 for protons from 2.5 TeV to 250 TeV and −2.58 ± 0.02 for helium nuclei from 630 GeV nucleon −1 to 63 TeV nucleon −1 . They are harder than previous measurements at a few tens of GeV nucleon −1 . The helium flux is higher than that expected from the extrapolation of the power law fitted to the lower-energy data. The relative abundance of protons to helium nuclei is 9.1 ± 0.5 for the range from 2.5 TeV nucleon −1 to 63 TeV nucleon −1 . This ratio is considerably smaller than the previous measurements at a few tens of GeV nucleon −1 .
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Metadata
- Authors
- Yoon, Y. S., Ahn, H. S., Allison, P. S., Bagliesi, M. G., Beatty, J. J., Bigongiari, G., Boyle, P. J., Childers, J. T., Conklin, N. B., Coutu, S., DuVernois, M. A., Ganel, O., Han, J. H., Jeon, J. A., Kim, K. C., Lee, M. H., Lutz, L., Maestro, P., Malinine, A., Marrocchesi, P. S., Minnick, S. A., Mognet, S. I., Nam, S., Nutter, S., Park, I. H., Park, N. H., Seo, E. S., Sina, R., Swordy, S., Wakely, S. P., Wu, J., Yang, J., Zei, R., & Zinn, S. Y.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2011-01-28
- Volume
- 728
- Issue
- 2
- Pages
- 122
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2131730920
- Cited by
- 334
- References
- 18
- FWCI
- 13.10
- Type
- journal article
- Language
- en
- Open access
- green
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- Yoon, Y. S., Ahn, H. S., Allison, P. S., Bagliesi, M. G., Beatty, J. J., Bigongiari, G., Boyle, P. J., Childers, J. T., Conklin, N. B., Coutu, S., DuVernois, M. A., Ganel, O., Han, J. H., Jeon, J. A., Kim, K. C., Lee, M. H., Lutz, L., Maestro, P., Malinine, A., . . . Zinn, S. Y. (2011). COSMIC-RAY PROTON AND HELIUM SPECTRA FROM THE FIRST CREAM FLIGHT. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/728/2/122
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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