2026-09-20T01:51:49Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/286512022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Peter H. Fisher.
Monreal, Benjamin, 1977-
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2005-09-27T17:31:11Z
2005-09-27T17:31:11Z
2004
2004
http://hdl.handle.net/1721.1/28651
58965763
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.
Includes bibliographical references (leaves 97-102).
Accreting x-ray binaries are sometimes observed to emit compact, relativistic jets of cool plasma; these objects are called "microquasars". It is possible that these jets are responsible for a large flux of galactic cosmic ray protons and nuclei. The energy spectrum from these sources will be very different from the featureless power-law expected from ordinary cosmic-ray acceleration in supernova shocks. The AMS-01 instrument measured cosmic ray protons and helium during 10 days on the Space Shuttle Discovery in 1998; we analyze this data searching for spectral distortions due to nearby microquasar activity. We show that the microquasar contribution to the CR proton flux can be no more than [approximately] 2% in the range 2-50 GeV.
by Benjamin Monreal.
Ph.D.
102 leaves
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Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Search for microquasar features in cosmic ray spectra with AMS-01
Thesis
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