Walsh, N. E. and Binns, W. R. and Israel, M. H. and Murphy, R. P. and Rauch, B. F. and Ward, J. E. and Brandt, T. J. and Link, J. T. and Mitchell, J. W. and Hams, T. and Sakai, K. and Sasaki, M. and Labrador, A. W. and Mewaldt, R. A. and Stone, E. C. and Wiedenbeck, M. E. and Waddington, C. J. (2019) SuperTIGER Abundances of Galactic Cosmic-Rays for the Charge Interval Z=41-56. In: 36th International Cosmic Ray Conference (ICRC2019). Proceedings of Science. No.358. SISSA , Trieste, Italy, Art. No. 147. https://resolver.caltech.edu/CaltechAUTHORS:20190821-081636867
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Abstract
On December 8, 2012 the SuperTIGER (Super Trans-Iron Galactic Element Recorder) instrument was launched from Williams Field, Antarctica on a long-duration balloon flight that lasted 55 days and maintained a mean altitude of 125,000 feet. SuperTIGER measured the relative abundances of Galactic cosmic-ray nuclei with high statistical precision and well resolved individual element peaks from Neon to Zirconium (charges Z=10-40). SuperTIGER also made exploratory measurements of the relative abundances up to Barium (Z=56). Although the statistics are low for elements heavier than Zirconium, we will show how the relative abundances of charges Z=41-56 compare to those reported by HEAO3-HNE during 1979-81. The relative abundances of elements Zirconium through Neodymium (Z=60) are of particular interest because they are likely formed both by supernova explosions and by binary neutron star mergers. A well resolved measurement of this range of elements can constrain the contributions to the Galactic cosmic-ray composition from both of these possible sources.
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| Additional Information: | © 2019 owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Pre-published on: 2019 July 22. | ||||||||||||||||
| Group: | Space Radiation Laboratory | ||||||||||||||||
| Series Name: | Proceedings of Science | ||||||||||||||||
| Issue or Number: | 358 | ||||||||||||||||
| Record Number: | CaltechAUTHORS:20190821-081636867 | ||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190821-081636867 | ||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||
| ID Code: | 98061 | ||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||
| Deposited On: | 21 Aug 2019 16:20 | ||||||||||||||||
| Last Modified: | 20 Feb 2020 14:33 |
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