Further studies of the new component of cosmic rays at low energiesRecent observations with cosmic ray telescopes aboard the Pioneer 10 space probe have revealed an anomalous spectrum of nitrogen and oxygen nuclei relative to other nuclei such as carbon in the quiet time cosmic radiation below about 40 MeV/nuc. These observations are extended with additional data from Pioneer 10 and considerable new data from an identical telescope aboard Pioneer 11. In addition to the enhancement of nitrogen and oxygen nuclei observed earlier, the intensity of neon is enhanced as well. The spectra of boron, magnesium, and silicon appear to be similar to that of carbon. Data on the isotopic composition, solar modulation, and radial gradient of these nuclei are presented.
Document ID
19760044023
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Webber, W. R. (New Hampshire, University Durham, N.H., United States)
Mcdonald, F. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Trainor, J. H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Teegarden, B. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Von Rosenvinge, T. T. (NASA Goddard Space Flight Center Greenbelt, Md., United States)