Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations

Naiguo Lin; P. J. Kellogg; R. J. MacDowall; D. J. McComas; A. Balogh; R. J. Forsyth

doi:10.1063/1.1618652

Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations

Naiguo Lin, P. J. Kellogg, R. J. MacDowall, D. J. McComas, A. Balogh, R. J. Forsyth

Physics and Astronomy (Twin Cities)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have compared observations of VLF waves (0.2 to 448 Hz) made by Ulysses during its second fast latitude scan (near the solar maximum) with the wave observations during the first fast latitude scan in 1995, when the solar activity was approaching a minimum. The occurrences and properties of the waves are found to be similar during the solar maximum and solar minimum periods for slow and intermediate speed solar wind. The maximum intensity of the electromagnetic waves for the two solar cycle periods is comparable. These similarities suggest that the plasma conditions for the waves' excitation are similar for the slow and intermediate solar wind in both solar maximum and minimum phases. It is also found that the electric field noise detected in the low band channels, which are measuring less than 9 Hz signals, is contaminated by the spin modulation of the electric field due to photoelectrons around the spacecraft, especially when the ambient plasma density is low. This noise increases with increasing solar aspect angle.

Original language	English (US)
Title of host publication	Solar Wind Ten
Subtitle of host publication	Proceedings of the 10th International Solar Wind Conference
Editors	Marco Velli, Roberto Bruno, Francesco Malara
Publisher	American Institute of Physics Inc.
Pages	534-537
Number of pages	4
ISBN (Electronic)	0735401489
DOIs	https://doi.org/10.1063/1.1618652
State	Published - Sep 2 2003
Event	10th International Solar Wind Conference - Pisa, Italy Duration: Jun 17 2002 → Jun 21 2002

Publication series

Name	AIP Conference Proceedings
Volume	679
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	10th International Solar Wind Conference
Country/Territory	Italy
City	Pisa
Period	6/17/02 → 6/21/02

Bibliographical note

Publisher Copyright:
© 2003 American Institute of Physics.

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Lin, N., Kellogg, P. J., MacDowall, R. J., McComas, D. J., Balogh, A., & Forsyth, R. J. (2003). Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations. In M. Velli, R. Bruno, & F. Malara (Eds.), Solar Wind Ten: Proceedings of the 10th International Solar Wind Conference (pp. 534-537). (AIP Conference Proceedings; Vol. 679). American Institute of Physics Inc.. https://doi.org/10.1063/1.1618652

Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations. / Lin, Naiguo; Kellogg, P. J.; MacDowall, R. J. et al.
Solar Wind Ten: Proceedings of the 10th International Solar Wind Conference. ed. / Marco Velli; Roberto Bruno; Francesco Malara. American Institute of Physics Inc., 2003. p. 534-537 (AIP Conference Proceedings; Vol. 679).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lin, N, Kellogg, PJ, MacDowall, RJ, McComas, DJ, Balogh, A & Forsyth, RJ 2003, Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations. in M Velli, R Bruno & F Malara (eds), Solar Wind Ten: Proceedings of the 10th International Solar Wind Conference. AIP Conference Proceedings, vol. 679, American Institute of Physics Inc., pp. 534-537, 10th International Solar Wind Conference, Pisa, Italy, 6/17/02. https://doi.org/10.1063/1.1618652

Lin N, Kellogg PJ, MacDowall RJ, McComas DJ, Balogh A, Forsyth RJ. Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations. In Velli M, Bruno R, Malara F, editors, Solar Wind Ten: Proceedings of the 10th International Solar Wind Conference. American Institute of Physics Inc. 2003. p. 534-537. (AIP Conference Proceedings). doi: 10.1063/1.1618652

Lin, Naiguo ; Kellogg, P. J. ; MacDowall, R. J. et al. / Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum : Ulysses Observations. Solar Wind Ten: Proceedings of the 10th International Solar Wind Conference. editor / Marco Velli ; Roberto Bruno ; Francesco Malara. American Institute of Physics Inc., 2003. pp. 534-537 (AIP Conference Proceedings).

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Comparison of VLF Wave Activity in the Solar Wind during Solar Maximum and Minimum: Ulysses Observations

Abstract

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