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Voyager 2 Observations of Plasma and Pressure Pulses

Richardson, John D. and Belcher, John W. and Cummings, Alan C. and Decker, Robert and Stone, Edward C. (2018) Voyager 2 Observations of Plasma and Pressure Pulses. Journal of Physics: Conference Series, 1100 . Art. No. 012019. ISSN 1742-6596. doi:10.1088/1742-6596/1100/1/012019.

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This paper provides the latest data from Voyager 2 on plasma characteristics in the heliosheath including the observations of pressure waves in the plasma and particle data. Models and observations show that solar transients drive pressure waves through the heliosphere. Pressure pulses that could drive heliosheath waves are observed near the previous solar maximum upstream of the termination shock. We show that the most recent data is consistent with the presence of pressure waves and compare the heliosheath waves with the pressure increases in the heliosheath. The magnetic field is better correlated with density and galactic cosmic ray intensities in the supersonic solar wind than in the heliosheath. The galactic cosmic rays are correlated with the plasma and particles with a ~30-day lag in both the supersonic wind and heliosheath.

Item Type:Article
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URLURL TypeDescription
Richardson, John D.0000-0003-4041-7540
Cummings, Alan C.0000-0002-3840-7696
Stone, Edward C.0000-0002-2010-5462
Additional Information:© 2018 Published under licence by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Accepted papers received: 7 September 2018; Published online: 24 October 2018. We thank SPDF for the Voyager 2 magnetometer data and CRS (P.I., E. C. Stone) and LECP (P.I., S. M. Krimigis) for providing data through their web sites. JDR was supported under NASA contract 959203 from the Jet Propulsion Laboratory to the Massachusetts Institute of Technology. RBD was supported by NASA contract NNN06AA01C. ECS and ACE were supported by NASA grant NNN12AA01C.
Group:Space Radiation Laboratory
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Record Number:CaltechAUTHORS:20181025-112020309
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Official Citation:John D. Richardson et al 2018 J. Phys.: Conf. Ser. 1100 012019
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90417
Deposited By: Tony Diaz
Deposited On:25 Oct 2018 18:41
Last Modified:12 Jul 2022 16:59

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