Measurement of the relative abundances of the ultra-heavy galactic cosmic-ray abundances (30 ≤ Z ≤ 40) with tiger

  • B. F. Rauch
  • , L. M. Barbier
  • , W. R. Binns
  • , J. R. Cummings
  • , G. A. De Nolfo
  • , S. Geier
  • , M. H. Israel
  • , J. T. Link
  • , R. A. Mewaldt
  • , J. W. Mitchell
  • , S. M. Schindler
  • , L. M. Scott
  • , E. C. Stone
  • , R. E. Streitmatter
  • , C. J. Waddington

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Observations of Ultra-Heavy galactic cosmic rays (GCR) help to distinguish the possible origins of GCRs. The Trans-Iron Galactic Recorder (TIGER) is designed to measure the charge (Z)an d energy of GCRs using a combination of scintillation counters, Cherenkov counters, and a scintillating fiber hodoscope. TIGER has accumulated data on two successful flights from McMurdo, Antarctica: the first launched in December of 2001 with a total flight duration of 31.8 days and the second in December of 2003 with a total flight duration of 18 days. The two flights of TIGER achieved sufficient statistics and charge resolution to resolve -140 particles with Z > 30, and have provided the best measurements to date for Zn, Ga, Ge, and Se. We present a preliminary analysis of the combined data from both flights for Ultra-Heavy GCRs and discuss the results in the context of different GCR source models.

Original languageEnglish
Title of host publicationThe Science and Culture Series - Astrophysics; International School of Cosmic Ray Astrophysics 15th Course
Subtitle of host publicationAstrophysics at Ultra-High Energies
PublisherWorld Scientific Publishing Co. Pte. Ltd.
Pages139-144
Number of pages6
ISBN (Print)9812790144, 9789812790149
StatePublished - 2007
Event15th Biennial Course on Astrophysics at Ultra-High Energies - Erice, Italy
Duration: Jun 20 2006Jun 27 2006

Publication series

NameThe Science and Culture Series - Astrophysics; International School of Cosmic Ray Astrophysics 15th Course: Astrophysics at Ultra-High Energies

Conference

Conference15th Biennial Course on Astrophysics at Ultra-High Energies
Country/TerritoryItaly
CityErice
Period06/20/0606/27/06

Keywords

  • Galactic abundances
  • Galactic cosmic rays

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