Solar-cycle variations of interaction regions: in-ecliptic observations from 1 to 5 AU

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Published: Jan 1, 2000
DOI: https://doi.org/10.22201/igeof.00167169p.2000.39.1.294
Keywords:
Interplanetary physics, interplanetary shocks, corotating streams, solar cycle variations

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J. Américo González-Esparza
Universidad Nacional Autónoma de México, Instituto de Geofísica, Ciudad Universitaria, Delegación Coyoacán, 04510, Mexico City, México

Abstract

We study a combined set of 97 interaction regions detected by Pioneers 10 and 11, Voyagers 1 and 2, and Ulysses from 1 to 5 AU during their respective journeys to Jupiter at different phases of the solar cycle. The fast streams associated with the IRs detected by Voyager were slower than the fast streams detected by Pioneer and Ulysses. The comparison between the latitudinal tilts of the IRs detected by Voyager and Ulysses and the tilts of the current sheets show a qualitative agreement with the predictions of heliocentric evolution by numerical simulations of tilted interaction regions. The interaction regions detected by the Pioneers tend to be thinner than the interaction regions detected by Voyagers and Ulysses in the same heliocentric range.

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González-Esparza, J. A. (2000). Solar-cycle variations of interaction regions: in-ecliptic observations from 1 to 5 AU. Geofisica Internacional, 39(1), 41–46. https://doi.org/10.22201/igeof.00167169p.2000.39.1.294
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Vol. 39 No. 1 (2000): January 1, 2000
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References

BURLAGA, L. F., 1974, Interplanetary stream interfaces, J. Geophys. Res., 79, 3717-3725. DOI: https://doi.org/10.1029/JA079i025p03717

BURLAGA, L. F., 1984. MHD processes in the outer heliosphere. Space Sci. Rev., 39, 255-316. DOI: https://doi.org/10.1007/BF00173902

GONZÁLEZ-ESPARZA, J. A. and E. J. SMITH, 1996. Solar cycle dependence of the solar wind dynamics: Pioneer, Voyager, and Ulysses from 1 to 5 AU, J. Geophys. Res., 101, 24, 359-24, 371. (paper 1). DOI: https://doi.org/10.1029/96JA02458

GONZÁLEZ-ESPARZA, J. A. and E. J. SMITH, 1997. Three-dimensional nature of interaction regions: Pioneer, Voyager, and Ulysses solar cycle variations from 1 to 5AU, J. Geophys. Res., 102, 9781-9792. (paper 2). DOI: https://doi.org/10.1029/97JA00516

GOSLING, J. T., J. R. ASBRIDGE, S. J. BAME and W. C. FELDMAN, 1976. Solar wind speed variations: 1962-1974, J. Geophys. Res., 81, 5061-5070. DOI: https://doi.org/10.1029/JA081i028p05061

GOSLING, J. T., S. J. BAME, D. J. MCCOMAS, J. L. PHILLIPS, V. J. PIZZO, B. E. GOLDSTEIN and M. NEUGEBAUER, 1993. Latitudinal variation of solar wind corotating stream interaction regions: Ulysses, Geophys. Res. Lett., 20, 2789-2792. DOI: https://doi.org/10.1029/93GL03116

HOEKSEMA, J. T., 1986. The relationship of the large-scale solar field to the interplanetary magnetic field: what will Ulysses find? The Sun and the Heliosphere in Three-Dimensions, edited by R. G. Marsden, D. Reidel, Norwell, Mass., 241-254. DOI: https://doi.org/10.1007/978-94-009-4612-5_30

HUNDHAUSEN, A. J., R. T. HANSEN and S. F. HANSEN,1981. Coronal evolution during the sunspot cycle: Coronal holes observed with the Mauna Loa k-coronameters, J. Geophys. Res., 86, 2079-2094. DOI: https://doi.org/10.1029/JA086iA04p02079

PIZZO, V. J., 1982. A three-dimensional model of corotating streams in the solar wind, J. Geophys. Res., 87, 4374-4394. DOI: https://doi.org/10.1029/JA087iA06p04374

PIZZO, V. J., 1991. The evolution of corotating stream fronts near the ecliptic plane in the inner solar system, 2, Three-dimensional tilted-dipole fronts, J. Geophys. Res., 96, 5405-5420. DOI: https://doi.org/10.1029/91JA00155

PIZZO, V. J., 1994. Global, quasi-steady dynamics of the distant solar wind. 1. origin of north-south flows in the outer heliosphere, J. Geophys. Res., 99, 4173-4183. DOI: https://doi.org/10.1029/93JA03239

RILEY, P., J. T. GOSLING, L. A. WEISS and V. J. PIZZO,1996. The tilts of corotating interaction regions at midheliographic latitudes, J. Geophys. Res., 101, 24349-24357. DOI: https://doi.org/10.1029/96JA02447

SISCOE, G. L., 1976. Three-dimensional aspects of interplanetary shock waves, J. Geophys. Res., 81, 6235-6241. DOI: https://doi.org/10.1029/JA081i034p06235

SMITH, E. J., 1990. The heliospheric current sheet and odulation of galactic cosmic rays, J. Geophys. Res., 95, 18731-18743. DOI: https://doi.org/10.1029/JA095iA11p18731

SMITH, E. J. and J. H. WOLFE, 1976. Observations of interaction regions and corotating shocks between one and five au, Geophys. Res. Lett., 3, 137-140. DOI: https://doi.org/10.1029/GL003i003p00137

ZHAO, X. and A. J. HUNDHAUSEN, 1981. Organization of solar wind plasma properties in a tilted, heliomagnetic system, J. Geophys. Res., 86, 5423-5430. DOI: https://doi.org/10.1029/JA086iA07p05423