Measurements of the Cosmic-Ray Electron Spectrum

Details Measurements of the Cosmic-Ray Electron Spectrum Measurements of the Cosmic-Ray Electron Spectrum

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3205s&link_type=abstract

American Astronomical Society, HEAD meeting #11, #32.05; Bulletin of the American Astronomical Society, Vol. 41, p.704

Astronomy and Astrophysics

Astrophysics

Scientific paper

Direct measurements of cosmic-ray electrons and positrons were first made in the early 1960s and since then a number of - mostly balloon borne - instruments were built to study this component of the cosmic radiation. The precise measurement of the intensities of CR electrons and positrons are key to our understanding of cosmic-ray origin and propagation. In addition the locally observed abundance of cosmic ray electrons and/or positrons may exhibit interesting spectral features. Recent reports by the PAMELA team of the observed rise in the cosmic-ray positron fraction above a few GeV and of an excess of cosmic-ray electrons around a few hundred GeV by the ATIC collaboration have resulted in a flurry of publications discussing these observations either as a possible dark matter signature or as a contribution from isolated astrophysical sources. While those interpretations are scientifically exciting, the possibility that measurements are contaminated by misidentified cosmic-ray protons cannot be ignored. This presentation will give a critical assessment of current measurements and discusses upcoming observations by the CREST instrument that will extend the cosmic-ray electron observations into the 10 TeV region.

Affiliated with

Also associated with

No associations

Rating

Measurements of the Cosmic-Ray Electron Spectrum does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurements of the Cosmic-Ray Electron Spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurements of the Cosmic-Ray Electron Spectrum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1093803