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Differential Measurement of Cosmic-Ray Gradient with Respect to Interplanetary Current Sheet

Christon, S. P. and Cummings, A. C. and Stone, E. C. and Behannon, K. W. and Burlaga, L. F. (1985) Differential Measurement of Cosmic-Ray Gradient with Respect to Interplanetary Current Sheet. In: Proceedings of the 19th International Cosmic Ray Conference. Vol.4. Goddard Space Flight Center , Green Belt, MD, pp. 445-448.

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Simultaneous magnetic field and charged particle measurements from the Voyager spacecraft at heliographic latitude separations from 10° to 21 a are used to determine the latitude gradient of the galactic cosmic ray flux with respect to the interplanetary current sheet. By comparing the ratio of cosmic ray flux at Voyager 1 to that at Voyager 2 during periods when both spacecraft are first north and then south of the interplanetary current sheet, we find an estimate of the latitudinal gradient with respect to the current sheet of approximately -0.15 ± 0.05 %/ deg under restricted interplanetary conditions.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Cummings, A. C.0000-0002-3840-7696
Stone, E. C.0000-0002-2010-5462
Burlaga, L. F.0000-0002-5569-1553
Additional Information:© NASA/STI. Provided by the NASA Astrophysics Data System. We are grateful for the contributions of R.E. Vogt, other Voyager Cosmic Ray Subsystem team members, and N.F. Ness. Work at Caltech was supported in part by the National Aeronautics and Space Administration under contract JPL 49-556-63120-0-2600 and grant NGR 05-002-160.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
Non-Subject Keywords:Cosmic Ray Showers, Current Sheets, Galactic Cosmic Rays, Gradients, Interplanetary Magnetic Fields, Latitude, Solar Magnetic Field, Models, Proton Beams, Three Dimensional Bodies, Voyager 1 Spacecraft, Voyager 2 Spacecraft
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1985-09
Record Number:CaltechAUTHORS:20140501-143744927
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45442
Deposited By: Joy Painter
Deposited On:01 May 2014 21:44
Last Modified:09 Mar 2020 13:18

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