Physics
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..apr.j7003i&link_type=abstract
American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #J7.003
Physics
Scientific paper
We present new results on the elemental abundances of galactic cosmic rays with atomic number, Z, greater than 30, and comparison of these observations with abundances expected from galactic propagation of various suggested models of the cosmic-ray source. We combine preliminary results from the 2003-04 flight of the Trans-Iron Galactic Element Recorder (TIGER) cosmic-ray detector with previously reported results from the 2001-02 flight. This instrument flew over Antarctica for nearly 32 days in December 2001 -- January 2002 at a mean atmospheric depth of 5.2 mb; and it flew again for 18 days in December 2003 -- January 2004 at a mean depth of 4.0 mb. Data from the first flight demonstrated excellent resolution of individual elements, and we expect similar resolution from the second flight. Our data include well-resolved individual-element peaks at Z = 31, 32, and 34.
Barbier Loius M.
Binns Robert W.
Christian Eric R.
Cummings Jay R.
de Nolfo Georgia Adair
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