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- Interplanetary_magnetic_field abstract "The interplanetary magnetic field (IMF) is the term for the solar magnetic field carried by the solar wind among the planets of the Solar System.Since the solar wind is a plasma, it has the characteristics of a plasma, rather than a simple gas. For example, it is highly electrically conductive so that magnetic field lines from the Sun are carried along with the wind. The dynamic pressure of the wind dominates over the magnetic pressure through most of the solar system (or heliosphere), so that the magnetic field is pulled into an Archimedean spiral pattern (the Parker spiral) by the combination of the outward motion and the Sun's rotation. Depending on the hemisphere and phase of the solar cycle, the magnetic field spirals inward or outward; the magnetic field follows the same shape of spiral in the northern and southern parts of the heliosphere, but with opposite field direction. These two magnetic domains are separated by a two current sheet (an electric current that is confined to a curved plane). This heliospheric current sheet has a shape similar to a twirled ballerina skirt, and changes in shape through the solar cycle as the Sun's magnetic field reverses about every 11 years.The plasma in the interplanetary medium is also responsible for the strength of the Sun's magnetic field at the orbit of the Earth being over 100 times greater than originally anticipated. If space were a vacuum, then the Sun's magnetic dipole field, about 10−4 teslas at the surface of the sun, would reduce with the inverse cube of the distance to about 10−11 teslas. But satellite observations show that it is about 100 times greater at around 10−9 teslas. Magnetohydrodynamic (MHD) theory predicts that the motion of a conducting fluid (e.g. the interplanetary medium) in a magnetic field, induces electric currents which in turn generates magnetic fields, and in this respect it behaves like a MHD dynamo.".
- Interplanetary_magnetic_field thumbnail Heliospheric-current-sheet.gif?width=300.
- Interplanetary_magnetic_field wikiPageExternalLink IMF.html.
- Interplanetary_magnetic_field wikiPageExternalLink imf.html.
- Interplanetary_magnetic_field wikiPageID "7085992".
- Interplanetary_magnetic_field wikiPageRevisionID "602780942".
- Interplanetary_magnetic_field hasPhotoCollection Interplanetary_magnetic_field.
- Interplanetary_magnetic_field subject Category:Outer_space.
- Interplanetary_magnetic_field subject Category:Solar_System.
- Interplanetary_magnetic_field comment "The interplanetary magnetic field (IMF) is the term for the solar magnetic field carried by the solar wind among the planets of the Solar System.Since the solar wind is a plasma, it has the characteristics of a plasma, rather than a simple gas. For example, it is highly electrically conductive so that magnetic field lines from the Sun are carried along with the wind.".
- Interplanetary_magnetic_field label "Campo magnetico interplanetario".
- Interplanetary_magnetic_field label "Campo magnético interplanetário".
- Interplanetary_magnetic_field label "Interplanetares Magnetfeld".
- Interplanetary_magnetic_field label "Interplanetary magnetic field".
- Interplanetary_magnetic_field label "حقل مغناطيسي بين كوكبي".
- Interplanetary_magnetic_field label "行星際磁場".
- Interplanetary_magnetic_field sameAs Interplanetares_Magnetfeld.
- Interplanetary_magnetic_field sameAs Champ_magnétique_interplanétaire.
- Interplanetary_magnetic_field sameAs Campo_magnetico_interplanetario.
- Interplanetary_magnetic_field sameAs 행성간_자기장.
- Interplanetary_magnetic_field sameAs Campo_magnético_interplanetário.
- Interplanetary_magnetic_field sameAs m.0h3hc8.
- Interplanetary_magnetic_field sameAs Q619254.
- Interplanetary_magnetic_field sameAs Q619254.
- Interplanetary_magnetic_field wasDerivedFrom Interplanetary_magnetic_field?oldid=602780942.
- Interplanetary_magnetic_field depiction Heliospheric-current-sheet.gif.
- Interplanetary_magnetic_field isPrimaryTopicOf Interplanetary_magnetic_field.
