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The Orbiting Astrophysical Spectrometer In Space (OASIS)

Adams, J. H., Jr. and Adams, R. and Barbier, L. M. and Barghouty, A. F. and Binns, W. R. and Christl, M. and Cosse, C.B. and Elrod, S.E. and de Nolfo, G. A. and Guzik, T.G. and Hams, T. and Isbert, J. and Israel, M. H. and Krizmanic, J. F. and Labrador, A. W. and Link, J. T. and Mewaldt, R. A. and Mitchell, J. W. and Moiseev, A. A. and Sasaki, M. and Stochaj, S. J. and Stone, E. C. and Streitmatter, R. E. and Watts, J.W. and Wefel, J.P. and Wiedenbeck, M. E. (2009) The Orbiting Astrophysical Spectrometer In Space (OASIS). In: Proceedings of the 31st International Cosmic Ray Conference. , Lodz, Poland.

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The Orbiting Astrophysical Observatory In Space (OASIS) is an Advanced Concept currently under study at NASA as a mission for the next decade. The goal of the OASIS mission is to identify a local site or sites where galactic cosmic rays (GCR) originate and are accelerated. The mission will also allow GCR data to be used to investigate how elements are made and distributed in the galaxy and to improve our understanding of supernovae and the nucleosynthesis of the heavy elements. OASIS consists of two instruments that provide complementary data on the location and nature of the source(s) through investigating the composition of ultra-heavy nuclei ( ) and the energy spectrum of electrons. In particular OASIS will measure the relative abundances in the actinide group ( ) to determine the age of the -process material in GCRs. The presence of young r-process material would indicate that GCRs are a sample of the interstellar medium in OB associations. OASIS will measure the electron spectrum to 10 TeV. The energy where this spectrum ends will tell us the distance to the nearest GCR source(s). OASIS will look for spectral features and anisotropy in the high energy electron spectrum that are expected to appear when only a few of the nearest astrophysical sources can contribute to the electron flux. Spectral features may also suggest dark matter decay products. We anticipate that these measurements will lead to the identification of the nearest cosmic ray electron source and provide a crucial test of the OB association model for the origin of GCR nuclei.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Binns, W. R.0000-0001-6110-3407
de Nolfo, G. A.0000-0002-3677-074X
Israel, M. H.0000-0002-8104-208X
Labrador, A. W.0000-0001-9178-5349
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Wiedenbeck, M. E.0000-0002-2825-3128
Additional Information:Copyright University of Łódź. Department of High Energy Astrophysics, 2010
Group:Space Radiation Laboratory
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2009-28
Record Number:CaltechAUTHORS:20150618-091430431
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58342
Deposited By: Deborah Miles
Deposited On:15 Jul 2015 17:21
Last Modified:09 Mar 2020 13:19

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