title: Magnetic Field and Plasma Observations at Mars: Initial Results of the Mars Global Surveyor Mission
abstract: The magnetometer and electron reflectometer investigation (MAG/ER) on the Mars Global Surveyor spacecraft has obtained magnetic field and plasma observations throughout the near-Mars environment, from beyond the influence of Mars to just above the surface (at an altitude of approximately 100 kilometers). The solar wind interaction with Mars is in many ways similar to that at Venus and at an active comet, that is, primarily an ionospheric-atmospheric interaction. No significant planetary magnetic field of global scale has been detected to date (<2 x 10(21) Gauss-cubic centimeter), but here the discovery of multiple magnetic anomalies of small spatial scale in the crust of Mars is reported.
authors.affiliation: M. H. Acuña, J. E. P. Connerney, P. Wasilewski, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. R. P. Lin, Space Sciences Laboratory and Department of Physics, University of California, Berkeley, CA 94720, USA. K. A. Anderson, C. W. Carlson, J. McFadden, D. W. Curtis, D. Mitchell, Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA. H. Reme, C. Mazelle, J. A. Sauvaud, C. d'Uston, A. Cros, J. L. Medale, Centre d'Etude Spatiale des Rayonnements, 31209 Toulouse Cedex, France. S. J. Bauer, University of Graz and Space Research Institute, A-8010 Graz, Austria. P. Cloutier, Department of Space Physics and Astronomy, Rice University, Houston, TX 77005, USA. M. Mayhew, National Science Foundation, Arlington, VA 22230, USA. D. Winterhalter, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. N. F. Ness, Bartol Research Institute, University of Delaware, Newark, DE 19716, USA.
authors.initials: MH
authors.lastname: Acuña
authors.initials: JEP
authors.lastname: Connerney
authors.initials: P
authors.lastname: Wasilewski
authors.initials: RP
authors.lastname: Lin
authors.initials: KA
authors.lastname: Anderson
authors.initials: CW
authors.lastname: Carlson
authors.initials: J
authors.lastname: McFadden
authors.initials: DW
authors.lastname: Curtis
authors.initials: D
authors.lastname: Mitchell
authors.initials: H
authors.lastname: Reme
authors.initials: C
authors.lastname: Mazelle
authors.initials: JA
authors.lastname: Sauvaud
authors.initials: C
authors.lastname: d'Uston
authors.initials: A
authors.lastname: Cros
authors.initials: JL
authors.lastname: Medale
authors.initials: SJ
authors.lastname: Bauer
authors.initials: P
authors.lastname: Cloutier
authors.initials: M
authors.lastname: Mayhew
authors.initials: D
authors.lastname: Winterhalter
authors.initials: NF
authors.lastname: Ness