Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published 1999 | Published
Book Section - Chapter Open

Measurements of the Elemental Composition and Energy Spectra of Anomalous Cosmic Ray Nuclei by the Solar Isotopic Spectrometer on ACE


The Solar Isotope Spectrometer (SIS) instrument on the Advanced Composition Explorer (ACE) spacecraft provides high resolution measurements of the elemental and isotopic compositions of energetic nuclei between approximately 10 and 100 Me V /nucleon from He to Zn (Z = 2 to 30). Solar quiet times from late 1997 to the present will be used to measure the energy spectra of elements previously observed in the anomalous cosmic rays, as well as search for new, rare elements. Relative abundances of the observed species will also be derived and related to the abundances of neutral atoms in the local interstellar medium.

Additional Information

© University of Utah. Provided by the NASA Astrophysics Data System. Some of this work is supported by NASA contracts NAS7-9l8 and NAS5-30704 and NASA grants NAG5-6912 and NAG5-2963.

Attached Files

Published - 1999-21.pdf


Files (211.1 kB)
Name Size Download all
211.1 kB Preview Download

Additional details

August 19, 2023
October 20, 2023