A Caltech Library Service

Characteristics of the spectra of protons and alpha particles in recurrent events at 1 Au

Mewaldt, R. A. and Stone, E. C. and Vogt, R. E. (1979) Characteristics of the spectra of protons and alpha particles in recurrent events at 1 Au. Geophysical Research Letters, 6 (7). pp. 589-592. ISSN 0094-8276. doi:10.1029/GL006i007p00589.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The spectra of both protons and alpha particles (1 ≲ E ≲ 7 MeV/nucleon) during 31 recurrent particle streams are fit well by an exponential in particle rigidity. Although the spectra show considerable temporal variation, the proton and alpha particle spectra are correlated such that the e-folding rigidities P_o(α) and P_o(p) of the two spectra are in the ratio P_o(α)/P_o(p) = 1.5 ± 0.1. The consistency of this ratio may be a characteristic of the interplanetary acceleration process.

Item Type:Article
Related URLs:
URLURL TypeDescription
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Additional Information:© 1979 by the American Geophysical Union. Manuscript Accepted: 7 Jun 1979. Manuscript Received: 24 Apr 1979. This work was supported in part by NASA under Contract NAS5-11066 and Grant NGR 05-002-160.
Funding AgencyGrant Number
NASANGR 05-002-160
Issue or Number:7
Record Number:CaltechAUTHORS:20140206-084028143
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43686
Deposited On:06 Feb 2014 16:56
Last Modified:10 Nov 2021 16:41

Repository Staff Only: item control page