Abstract
The radial component of the magnetic field at Ulysses, over latitudes from −10° to −45° and distances from 5.3 to 3.8 AU, compares very well with corresponding measurements being made by IMP-8 in the ecliptic at 1AU. There is little, if any, evidence of a latitude gradient. Variances in the field, normalized to the square of the field magnitude, show little change with latitude in variations in the magnitude but a large increase in the transverse field variations. The latter are shown to be caused by the presence of large amplitude, long period Alfvénic fluctuations. This identification is based on the close relation between the magnetic field and velocity perturbations including the effect of anisotropy in the solar wind pressure. The waves are propagating outward from the Sun, as in the ecliptic, but variance analysis indicates that the direction of propagation is radial rather than field-aligned. A significant long-period component of > 10 hours is present.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Alazraki, G. and Couturier, P.: 1971, Astron. Astrophys. ,13, 380.
Belcher, J.W.: 1971, Astrophys. J. ,168, 509.
Belcher, J.W. and Davis, Jr., L.: 1971, J. Geophys. Res. ,76, 3534.
Hoeksema, J.T., Wilcox, J.M. and Scherrer, P.H.: 1982, J. Geophys. Res. ,87, 10,331.
Hollweg, J.V.: 1973, J. Geophys. Res. ,78, 3643.
Jokipii, J.R.: 1989, Adv. Space Res. ,9, (12)105.
Jokipii, J.R. and Kóta, J.: 1989, Geophys. Res. Lett. ,16, 1.
McKibben, R.B.: 1990, in S. Grzedzielski and D.E. Page (eds.), Physics of the Outer Heliosphere ,Pergamon Press PLC, London, pp. 107–118.
Parker, E.N.: 1963, Interplanetary Dynamical Processes ,Wiley-Literscience, New York.
Smith, E.J., et al: 1993, Geophys. Res. Lett. ,20, 2327.
Wang, Y.-M.: 1994, ESLAB Symposium Proceedings ,this volume.
Wang, Y-M.: 1993, J. Geophys. Res. ,98, 3529.
Zhao, X.P. and Hoeksema, J.T.: 1994, this volume.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Smith, E.J., Neugebauer, M., Balogh, A., Bame, S.J., Lepping, R.P., Tsurutani, B.T. (1995). Ulysses Observations of Latitude Gradients in the Heliospheric Magnetic Field: Radial Component and Variances. In: Marsden, R.G. (eds) The High Latitude Heliosphere. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0167-7_28
Download citation
DOI: https://doi.org/10.1007/978-94-011-0167-7_28
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4075-4
Online ISBN: 978-94-011-0167-7
eBook Packages: Springer Book Archive