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Proton and Helium Spectra from the CREAM-III Flight
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| Zeitschriftentitel: | The Astrophysical Journal |
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| Personen und Körperschaften: | , , , , , , , , , , , , , , , , , , , , , , , , |
| In: | The Astrophysical Journal, 839, 2017, 1, S. 5 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
American Astronomical Society
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| Schlagwörter: |
| author_facet |
Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. |
|---|---|
| author |
Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. |
| spellingShingle |
Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. The Astrophysical Journal Proton and Helium Spectra from the CREAM-III Flight Space and Planetary Science Astronomy and Astrophysics |
| author_sort |
yoon, y. s. |
| spelling |
Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. 0004-637X 1538-4357 American Astronomical Society Space and Planetary Science Astronomy and Astrophysics http://dx.doi.org/10.3847/1538-4357/aa68e4 <jats:title>Abstract</jats:title> <jats:p>Primary cosmic-ray elemental spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment since 2004. The third CREAM payload (CREAM-III) flew for 29 days during the 2007–2008 Antarctic season. Energies of incident particles above 1 TeV are measured with a calorimeter. Individual elements are clearly separated with a charge resolution of ∼0.12 <jats:italic>e</jats:italic> (in charge units) and ∼0.14 <jats:italic>e</jats:italic> for protons and helium nuclei, respectively, using two layers of silicon charge detectors. The measured proton and helium energy spectra at the top of the atmosphere are harder than other existing measurements at a few tens of GeV. The relative abundance of protons to helium nuclei is 9.53 ± 0.03 for the range of 1 TeV/n to 63 TeV/n. This ratio is considerably smaller than other measurements at a few tens of GeV/n. The spectra become softer above ∼20 TeV. However, our statistical uncertainties are large at these energies and more data are needed.</jats:p> Proton and Helium Spectra from the CREAM-III Flight The Astrophysical Journal |
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| title |
Proton and Helium Spectra from the CREAM-III Flight |
| title_unstemmed |
Proton and Helium Spectra from the CREAM-III Flight |
| title_full |
Proton and Helium Spectra from the CREAM-III Flight |
| title_fullStr |
Proton and Helium Spectra from the CREAM-III Flight |
| title_full_unstemmed |
Proton and Helium Spectra from the CREAM-III Flight |
| title_short |
Proton and Helium Spectra from the CREAM-III Flight |
| title_sort |
proton and helium spectra from the cream-iii flight |
| topic |
Space and Planetary Science Astronomy and Astrophysics |
| url |
http://dx.doi.org/10.3847/1538-4357/aa68e4 |
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2017 |
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5 |
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<jats:title>Abstract</jats:title>
<jats:p>Primary cosmic-ray elemental spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment since 2004. The third CREAM payload (CREAM-III) flew for 29 days during the 2007–2008 Antarctic season. Energies of incident particles above 1 TeV are measured with a calorimeter. Individual elements are clearly separated with a charge resolution of ∼0.12 <jats:italic>e</jats:italic> (in charge units) and ∼0.14 <jats:italic>e</jats:italic> for protons and helium nuclei, respectively, using two layers of silicon charge detectors. The measured proton and helium energy spectra at the top of the atmosphere are harder than other existing measurements at a few tens of GeV. The relative abundance of protons to helium nuclei is 9.53 ± 0.03 for the range of 1 TeV/n to 63 TeV/n. This ratio is considerably smaller than other measurements at a few tens of GeV/n. The spectra become softer above ∼20 TeV. However, our statistical uncertainties are large at these energies and more data are needed.</jats:p> |
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| author | Yoon, Y. S., Anderson, T., Barrau, A., Conklin, N. B., Coutu, S., Derome, L., Han, J. H., Jeon, J. A., Kim, K. C., Kim, M. H., Lee, H. Y., Lee, J., Lee, M. H., Lee, S. E., Link, J. T., Menchaca-Rocha, A., Mitchell, J. W., Mognet, S. I., Nutter, S., Park, I. H., Picot-Clemente, N., Putze, A., Seo, E. S., Smith, J., Wu, J. |
| author_facet | Yoon, Y. S., Anderson, T., Barrau, A., Conklin, N. B., Coutu, S., Derome, L., Han, J. H., Jeon, J. A., Kim, K. C., Kim, M. H., Lee, H. Y., Lee, J., Lee, M. H., Lee, S. E., Link, J. T., Menchaca-Rocha, A., Mitchell, J. W., Mognet, S. I., Nutter, S., Park, I. H., Picot-Clemente, N., Putze, A., Seo, E. S., Smith, J., Wu, J., Yoon, Y. S., Anderson, T., Barrau, A., Conklin, N. B., Coutu, S., Derome, L., Han, J. H., Jeon, J. A., Kim, K. C., Kim, M. H., Lee, H. Y., Lee, J., Lee, M. H., Lee, S. E., Link, J. T., Menchaca-Rocha, A., Mitchell, J. W., Mognet, S. I., Nutter, S., Park, I. H., Picot-Clemente, N., Putze, A., Seo, E. S., Smith, J., Wu, J. |
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| description | <jats:title>Abstract</jats:title> <jats:p>Primary cosmic-ray elemental spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment since 2004. The third CREAM payload (CREAM-III) flew for 29 days during the 2007–2008 Antarctic season. Energies of incident particles above 1 TeV are measured with a calorimeter. Individual elements are clearly separated with a charge resolution of ∼0.12 <jats:italic>e</jats:italic> (in charge units) and ∼0.14 <jats:italic>e</jats:italic> for protons and helium nuclei, respectively, using two layers of silicon charge detectors. The measured proton and helium energy spectra at the top of the atmosphere are harder than other existing measurements at a few tens of GeV. The relative abundance of protons to helium nuclei is 9.53 ± 0.03 for the range of 1 TeV/n to 63 TeV/n. This ratio is considerably smaller than other measurements at a few tens of GeV/n. The spectra become softer above ∼20 TeV. However, our statistical uncertainties are large at these energies and more data are needed.</jats:p> |
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| spelling | Yoon, Y. S. Anderson, T. Barrau, A. Conklin, N. B. Coutu, S. Derome, L. Han, J. H. Jeon, J. A. Kim, K. C. Kim, M. H. Lee, H. Y. Lee, J. Lee, M. H. Lee, S. E. Link, J. T. Menchaca-Rocha, A. Mitchell, J. W. Mognet, S. I. Nutter, S. Park, I. H. Picot-Clemente, N. Putze, A. Seo, E. S. Smith, J. Wu, J. 0004-637X 1538-4357 American Astronomical Society Space and Planetary Science Astronomy and Astrophysics http://dx.doi.org/10.3847/1538-4357/aa68e4 <jats:title>Abstract</jats:title> <jats:p>Primary cosmic-ray elemental spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment since 2004. The third CREAM payload (CREAM-III) flew for 29 days during the 2007–2008 Antarctic season. Energies of incident particles above 1 TeV are measured with a calorimeter. Individual elements are clearly separated with a charge resolution of ∼0.12 <jats:italic>e</jats:italic> (in charge units) and ∼0.14 <jats:italic>e</jats:italic> for protons and helium nuclei, respectively, using two layers of silicon charge detectors. The measured proton and helium energy spectra at the top of the atmosphere are harder than other existing measurements at a few tens of GeV. The relative abundance of protons to helium nuclei is 9.53 ± 0.03 for the range of 1 TeV/n to 63 TeV/n. This ratio is considerably smaller than other measurements at a few tens of GeV/n. The spectra become softer above ∼20 TeV. However, our statistical uncertainties are large at these energies and more data are needed.</jats:p> Proton and Helium Spectra from the CREAM-III Flight The Astrophysical Journal |
| spellingShingle | Yoon, Y. S., Anderson, T., Barrau, A., Conklin, N. B., Coutu, S., Derome, L., Han, J. H., Jeon, J. A., Kim, K. C., Kim, M. H., Lee, H. Y., Lee, J., Lee, M. H., Lee, S. E., Link, J. T., Menchaca-Rocha, A., Mitchell, J. W., Mognet, S. I., Nutter, S., Park, I. H., Picot-Clemente, N., Putze, A., Seo, E. S., Smith, J., Wu, J., The Astrophysical Journal, Proton and Helium Spectra from the CREAM-III Flight, Space and Planetary Science, Astronomy and Astrophysics |
| title | Proton and Helium Spectra from the CREAM-III Flight |
| title_full | Proton and Helium Spectra from the CREAM-III Flight |
| title_fullStr | Proton and Helium Spectra from the CREAM-III Flight |
| title_full_unstemmed | Proton and Helium Spectra from the CREAM-III Flight |
| title_short | Proton and Helium Spectra from the CREAM-III Flight |
| title_sort | proton and helium spectra from the cream-iii flight |
| title_unstemmed | Proton and Helium Spectra from the CREAM-III Flight |
| topic | Space and Planetary Science, Astronomy and Astrophysics |
| url | http://dx.doi.org/10.3847/1538-4357/aa68e4 |