Radial variation of the interplanetary magnetic field between 0.3 AU and 1.0 AU - observations by the Helios-1 spacecraft
Article Sidebar
Main Article Content
Abstract
We have investigated the radial dependence of the radial and azimuthal components and the magnitude of the interplanetary magnetic field obtained by the Technical University of Braunschweig magnetometer experiment on-board of Helios-1 from December 10, 1974 to first perihelion on March 15, 1975. Absolute values of daily averages of each quantity have been employed. The regression analysis based on power laws leads to 2.55 γ x r-2.0 , 2.26 γ x r-1.0 and F = 5.53 γ x r-1.6 with standard deviations of 2.5 γ, 2.0 γ and 3.2 γ for the radial and azimuthal components and magnitude, respectively. Here r is the radial distance from the Sun in astronomical units. The results are compared with results obtained for Mariners 4, 5 and 10 and Pioneers 6 and 10. The differences are probably due to different epochs in the solar cycle and the different statistical techniques used.
ARK: https://n2t.net/ark:/88439/y077849
Permalink: https://geophysicsjournal.com/article/113
Article Details
Authors who publish with this journal as of Vol. 63 agree to the following terms:
a. Authors share the copyright with this journal in equal parts (50% to the journal, 50% to the lead author), and grant the journal right of first publication, with the work after publication simultaneously licensed under Creative Commons Attribution License CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
b. Authors may enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal, and a reference to this copyright notice.
c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) during the submission process, as this can lead to productive exchanges and earlier and greater citation of published work and better sales of the copyright.
Author Self-archiving
Authors retain copyright and grant the Journal of Geophysics right of first publication, with the work three years after publication simultaneously licensed under the Creative Commons BY-NC-ND 4.0 License that allows others to share the work (with an acknowledgment of the work's authorship and initial publication in this journal), except for commercial purposes and for creating derivatives.
Authors can enter into separate, additional, but non-commercial contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository, but not publish it in a book), with an acknowledgment of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as that can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Additional Notes
This journal is one of a handful of scholarly journals that publish original scientific works under CC BY-NC-ND 4.0 - the only Creative Commons license affording the authors' intellectual property absolute worldwide protection.
Journal of Geophysics is published under the scholar-publishers model, meaning authors do not surrender their copyright to us. Instead, and unlike corporate publishers like Elsevier or Springer Nature that resell copyright to third-parties for up to $80,000 (per paper, per transaction!), the Journal of Geophysics authors share copyright equally with this journal.
Therefore, all the proceeds from reselling copyright to third parties get shared to equal parts (50% to the journal, 50% to the lead author). Under the Berne Convention, this protection is an inheritable right that lasts for as long as the rightsholder lives + 50 years.
By submitting to this journal, the lead author, on behalf of all co-authors, grants permission to this journal to represent all co-authors in negotiating copyright sales and collecting proceeds. The lead author should negotiate with his/her co-authors the modalities of distributing the lead author's portion of the proceeds. Usually, this is per pre-agreed percentage of each co-author's contribution to creating the copyrighted work. (more...)
References
Behannon, K.W. (1975) Variation of the interplanetary magnetic field with heliocentric distance, GSFC Rep. X-692-75-143, June
Coleman, P.J., Smith, E., Jr., Davis, L., Jones, E.D. (1969) The radial dependence of the interplanetary magnetic field: 1.0-1,5 AU. J. Geophys. Res. 74:2826-2850
Jokipii, J.R. (1975) Fluctuations and the radial variation of the interplanetary magnetic field. Geophys. Res. Lett. 2:473-475
Musmann, G., Neubauer, F.M., Maier, A., Lammers, E. (1975) Das Forstensonden-Magnetfeldexperiment (E2). Raumfahrtforschung 19:232-237
Neugebauer, M. (1975) Large scale and solar-cycle variations of the solar wind. Space Sci. Rev. 17:221-254
Parker, E.N. (1963) Interplanetary dynamical processes. Interscience, New York
Parker, G.D., Jokipii, J.R. (1976) The spiral structure of the interplanetary magnetic field. Geophys. Res. Lett. 3:561-564
Rosenberg, R.L., Coleman, P.J., Jr. (1973) The radial dependence of the interplanetary magnetic field: 1.0-0.7 AU, Institute of Geophysical and Planetary Physics No. 1196-26, Univ. of California, Los Angeles
Smith, E.J. (1974) Radial gradients in the interplanetary magnetic field between 1.0 and 4.3 AU: Pioneer 10, Jet Propulsion Lab., Pasadena CA, USA
Villante, U., Mariani, F. (1975) On the radial variation of the interplanetary magnetic field: Pioneer 6. Geophys. Res. Lett. 2:73-74