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Magnetosphere

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2915: 802:, the magnetic field lines become almost horizontal, then return to reconnect at high latitudes. However, at high altitudes, the magnetic field is significantly distorted by the solar wind and its solar magnetic field. On the dayside of Earth, the magnetic field is significantly compressed by the solar wind to a distance of approximately 65,000 kilometers (40,000 mi). Earth's bow shock is about 17 kilometers (11 mi) thick and located about 90,000 kilometers (56,000 mi) from Earth. The magnetopause exists at a distance of several hundred kilometers above Earth's surface. Earth's magnetopause has been compared to a 791: 661: 2557: 783: 647: 2951: 2963: 890: 2927: 2889: 2939: 740:
The magnetopause is the area of the magnetosphere wherein the pressure from the planetary magnetic field is balanced with the pressure from the solar wind. It is the convergence of the shocked solar wind from the magnetosheath with the magnetic field of the object and plasma from the magnetosphere.
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Turner, Jake D.; Zarka, Philippe; GrieĂźmeier, Jean-Mathias; Lazio, Joseph; Cecconi, Baptiste; Emilio Enriquez, J.; Girard, Julien N.; Jayawardhana, Ray; Lamy, Laurent; Nichols, Jonathan D.; De Pater, Imke (2021), "The search for radio emission from the exoplanetary systems 55 Cancri, Ď… Andromedae,
814:, and as the magnetic field lines break and reconnect, solar wind particles are able to enter the magnetosphere. On Earth's nightside, the magnetic field extends in the magnetotail, which lengthwise exceeds 6,300,000 kilometers (3,900,000 mi). Earth's magnetotail is the primary source of the 757:
Opposite the compressed magnetic field is the magnetotail, where the magnetosphere extends far beyond the astronomical object. It contains two lobes, referred to as the northern and southern tail lobes. Magnetic field lines in the northern tail lobe point towards the object while those in the
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in 1959 to explain how the solar wind interacted with the Earth's magnetic field. The later mission of Explorer 12 in 1961 led by the Cahill and Amazeen observation in 1963 of a sudden decrease in magnetic field strength near the noon-time meridian, later was named the
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southern tail lobe point away. The tail lobes are almost empty, with few charged particles opposing the flow of the solar wind. The two lobes are separated by a plasma sheet, an area where the magnetic field is weaker, and the density of charged particles is higher.
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The magnetosheath is the region of the magnetosphere between the bow shock and the magnetopause. It is formed mainly from shocked solar wind, though it contains a small amount of plasma from the magnetosphere. It is an area exhibiting high particle
575:, or when the solar wind is not opposed by the object's magnetic field. In this case, the solar wind interacts with the atmosphere or ionosphere of the planet (or surface of the planet, if the planet has no atmosphere). 172:, the first of the Explorer series of space missions, was launched to study the intensity of cosmic rays above the atmosphere and measure the fluctuations in this activity. This mission observed the existence of the 25: 24: 21: 26: 650:
An artist's rendering of the structure of a magnetosphere: 1) Bow shock. 2) Magnetosheath. 3) Magnetopause. 4) Magnetosphere. 5) Northern tail lobe. 6) Southern tail lobe.
325: 23: 632: 882:, on the other hand, have no magnetic field. This may have had significant effects on their geological history. It is theorized that Venus and Mars may have lost their primordial water to 573: 502: 104:; in Earth's case, this protects living organisms from harm. Interactions of particles and atmospheres with magnetospheres are studied under the specialized scientific subjects of 2455: 818:. Also, NASA scientists have suggested that Earth's magnetotail might cause "dust storms" on the Moon by creating a potential difference between the day side and the night side. 680:
The bow shock forms the outermost layer of the magnetosphere; the boundary between the magnetosphere and the ambient medium. For stars, this is usually the boundary between the
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Kislyakova, K. G.; Holmstrom, M.; Lammer, H.; Odert, P.; Khodachenko, M. L. (2014). "Magnetic moment and plasma environment of HD 209458b as determined from Ly observations".
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Cauley, P. Wilson; Shkolnik, Evgenya L.; Llama, Joe; Lanza, Antonino F. (December 2019). "Magnetic field strengths of hot Jupiters from signals of star-planet interactions".
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occur when large swirls of plasma travel along the edge of the magnetosphere at a different velocity from the magnetosphere, causing the plasma to slip past. This results in
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The planetary distance where the magnetosphere can withstand the solar wind pressure is called the Chapman–Ferraro distance. This is usefully modeled by the formula wherein
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Because both sides of this convergence contain magnetized plasma, the interactions between them are complex. The structure of the magnetopause depends upon the
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is the largest planetary magnetosphere in the Solar System, extending up to 7,000,000 kilometers (4,300,000 mi) on the dayside and almost to the orbit of
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of the object's spin, the nature of the axis about which the object spins, the axis of the magnetic dipole, and the magnitude and direction of the flow of
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Trigilio, Corrado; Biswas, Ayan; et al. (May 2023). "Star-Planet Interaction at radio wavelengths in YZ Ceti: Inferring planetary magnetic field".
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became the first to be confirmed. The first unconfirmed detection of a magnetic field generated by a terrestrial exoplanet was found in 2023 on
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compared to Jupiter's surface magnetic field of 4.3 gauss. In 2020, a radio emission in the 14-30 MHz band was detected from the
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of the plasma, as well as the magnetic field. The magnetopause changes size and shape as the pressure from the solar wind fluctuates.
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Magnetospheres are dependent on several variables: the type of astronomical object, the nature of sources of plasma and momentum, the
1917: 1785: 2256: 2185: 1269: 1063: 1002: 1290: 807: 2251: 1323: 1031: 447:{\displaystyle R_{\rm {CF}}=R_{\rm {P}}\left({\frac {B_{\rm {surf}}^{2}}{\mu _{0}\rho V_{\rm {SW}}^{2}}}\right)^{\frac {1}{6}}} 198: 161:, scientists were able to study the variations in Earth's magnetic field as functions of both time and latitude and longitude. 96:) or a nearby star. Planets having active magnetospheres, like the Earth, are capable of mitigating or blocking the effects of 905:
was inferred from the way hydrogen was evaporating from the planet. In 2019, the strength of the surface magnetic fields of 4
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Pineda, J. Sebastian; Villadsen, Jackie (April 2023). "Coherent radio bursts from known M-dwarf planet host YZ Ceti".
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are thought to be common, though the first discoveries did not come until the 2010s. In 2014, a magnetic field around
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Signatures of Strong Magnetization and Metal-poor Atmosphere for a Neptune-Size Exoplanet, Ben-Jaffel et al. 2021
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Many astronomical objects generate and maintain magnetospheres. In the Solar System this includes the Sun,
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Russell, C.T. (1990). "The Magnetopause". In Russell, C.T.; Priest, E.R.; Lee, L.C. (eds.).
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Region around an astronomical object in which its magnetic field affects charged particles
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Pokhotelov, D.; von Alfthan, S.; Kempf, Y.; Vainio, R.; et al. (17 December 2013).
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a signature of a planetary magnetic field. In 2021 a magnetic field generated by
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has an induced magnetic field, which means that because Venus appears to have no
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Sparavigna, A.C.; Marazzato, R. (10 May 2010). "Observing stellar bow shocks".
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Blanc, M.; Kallenbach, R.; Erkaev, N.V. (2005). "Solar System Magnetospheres".
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represents the magnetic field on the surface of the planet at the equator, and
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discovered that the magnetic field on the surface of Earth resembled that of a
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Artist impression of the magnetic field around Tau Boötis b detected in 2020.
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Paschmann, G.; Schwartz, S.J.; Escoubet, C.P.; Haaland, S., eds. (2005).
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on the nightside. Jupiter's magnetosphere is stronger than Earth's by an
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and the solar wind. A strong magnetosphere greatly slows this process.
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later that year definitively proving its existence. Also during 1958,
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http://www.nasa.gov/topics/moonmars/features/magnetotail_080416.html
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In the space environment close to a planetary body with a
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observed the magnetotail, or the distant magnetic field.
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Beginning in the late 1940s, rockets were used to study
790: 1370:"Cluster reveals the reformation of Earth's bow shock" 1350:"Cluster reveals Earth's bow shock is remarkably thin" 1289:
Stern, David P.; Peredo, Mauricio (20 November 2003).
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Khurana, K. K.; Kivelson, M. G.; et al. (2004).
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and τ Boötis using LOFAR beam-formed observations",
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An Introduction to the Ionosphere and Magnetosphere
130:Study of Earth's magnetosphere began in 1600, when 1488:Russell, C.T. (1993). "Planetary Magnetospheres". 986: 626: 567: 496: 457:A magnetosphere is classified as "intrinsic" when 446: 311: 279: 241: 188:, with the term 'magnetosphere' being proposed by 1461:Jupiter: The Planet, Satellites and Magnetosphere 806:because it allows solar wind particles to enter. 77:such as Earth, the field lines resemble a simple 1264:. American Geophysical Union. pp. 439–453. 1201:. Space Sciences Series of ISSI. Vol. 118. 1195:Outer Magnetospheric Boundaries: Cluster Results 627:{\displaystyle R_{\rm {CF}}\approx R_{\rm {P}}} 1454:"The configuration of Jupiter's magnetosphere" 85:can be significantly distorted by the flow of 2387: 1949: 909:were estimated and ranged between 20 and 120 667:and artist's concept of the bow shock around 8: 1295:The Exploration of the Earth's Magnetosphere 1018: 1016: 1014: 138:, a small, magnetized sphere. In the 1940s, 1045: 1043: 1041: 786:Artist's rendition of Earth's magnetosphere 768:Earth's magnetic field § Magnetosphere 703:upstream and downstream of the bow shock. 568:{\displaystyle R_{\rm {CF}}\ll R_{\rm {P}}} 497:{\displaystyle R_{\rm {CF}}\gg R_{\rm {P}}} 319:represents the velocity of the solar wind: 2755: 2413: 2394: 2380: 2372: 1956: 1942: 1934: 1533:"X-ray Detection Sheds New Light on Pluto" 1388:"Cluster observes a 'porous' magnetopause" 1874: 1837: 1745: 1683: 1596: 1176: 1135: 617: 616: 599: 598: 592: 558: 557: 540: 539: 533: 487: 486: 469: 468: 462: 433: 420: 411: 410: 397: 386: 371: 370: 364: 352: 351: 334: 333: 327: 299: 298: 292: 261: 260: 254: 232: 231: 225: 2910: 1916:O'Callaghan, Jonathan (7 August 2023). 1784:O'Callaghan, Jonathan (7 August 2023). 1318: 1316: 959: 2456:Psychological and sociological effects 1240: 1230: 870:is approximately 18,000 times larger. 1810:HAT-P-11 Spectral Energy Distribution 249:represents the radius of the planet, 92:, as emitted from the Sun (i.e., the 7: 1557:Charles Q. Choi (20 November 2014). 50:is a region of space surrounding an 1431:"Planetary Shields: Magnetospheres" 618: 603: 600: 559: 544: 541: 488: 473: 470: 415: 412: 381: 378: 375: 372: 353: 338: 335: 303: 300: 271: 268: 265: 262: 233: 34:of the magnetosphere of the Earth. 14: 2257:Sura Ionospheric Heating Facility 1052:Origins of Magnetospheric Physics 985:Ratcliffe, John Ashworth (1972). 2961: 2949: 2937: 2925: 2913: 2887: 2555: 1050:Van Allen, James Alfred (2004). 794:Diagram of Earth's magnetosphere 1324:"The Tail of the Magnetosphere" 917:system, likely associated with 199:International Cometary Explorer 1644:Passant Rabie (29 July 2019). 1490:Reports on Progress in Physics 1261:Physics of magnetic flux ropes 1024:"Ionosphere and magnetosphere" 808:Kelvin–Helmholtz instabilities 280:{\displaystyle B_{\rm {surf}}} 58:are affected by that object's 1: 2113:Interplanetary magnetic field 2055:Magnetosphere particle motion 1032:Encyclopædia Britannica, Inc. 761: 1734:Astronomy & Astrophysics 1416:The Moon and the Magnetotail 897:Magnetospheres generated by 585:Venus' induced magnetosphere 312:{\displaystyle V_{\rm {SW}}} 1764:10.1051/0004-6361/201937201 242:{\displaystyle R_{\rm {P}}} 3027: 2118:Heliospheric current sheet 1856:10.1038/s41550-023-01914-0 1531:NASA (14 September 2016). 1510:10.1088/0034-4885/56/6/001 1465:Cambridge University Press 1178:10.5194/angeo-31-2207-2013 775: 765: 733: 710: 673: 123: 2883: 2553: 1702:10.1038/s41550-019-0840-x 1109:10.1007/s11214-005-1958-y 184:proposed the idea of the 150:to the motion of Earth's 2070:Van Allen radiation belt 2050:Magnetosphere chronology 1410:14 November 2021 at the 1056:University of Iowa Press 856:magnetosphere of Jupiter 772:Van Allen radiation belt 174:Van Allen radiation belt 126:Magnetosphere chronology 66:with an active interior 1979:Atmospheric circulation 1756:2021A&A...645A..59T 1615:10.1126/science.1257829 1054:. Iowa City, Iowa USA: 1028:Encyclopædia Britannica 87:electrically conducting 2894:Outer space portal 1989:Earth's magnetic field 1326:. NASA. Archived from 1297:. NASA. Archived from 894: 795: 787: 671: 652: 628: 581:internal dynamo effect 569: 498: 448: 313: 281: 243: 205:Structure and behavior 148:Earth's magnetic field 142:proposed the model of 35: 3011:Concepts in astronomy 2526:Extraterrestrial life 2093:Coronal mass ejection 2013:Earth's magnetosphere 1392:European Space Agency 1374:European Space Agency 1355:European Space Agency 1215:10.1007/1-4020-4582-4 1089:Space Science Reviews 892: 812:magnetic reconnection 793: 785: 776:Further information: 762:Earth's magnetosphere 699:, leading to various 663: 651:7) Plasmasphere. 649: 629: 570: 499: 449: 314: 282: 244: 157:. Through the use of 75:dipole magnetic field 62:. It is created by a 29: 2266:Other magnetospheres 2128:Solar particle event 701:plasma instabilities 695:gains a substantial 591: 532: 461: 326: 291: 253: 224: 32:magnetic field lines 3001:Terrestrial plasmas 1848:2023NatAs...7..569P 1694:2019NatAs...3.1128C 1607:2014Sci...346..981K 1502:1993RPPh...56..687R 1358:. 16 November 2011. 1278:on 2 February 1999. 1207:2005ombc.book.....P 1169:2013AnGeo..31.2207P 1157:Annales Geophysicae 1101:2005SSRv..116..227B 919:cyclotron radiation 686:interstellar medium 425: 391: 146:, which attributes 52:astronomical object 30:A rendering of the 2809:Other technologies 1394:. 24 October 2012. 1330:on 7 February 2018 1291:"The Magnetopause" 921:from the poles of 895: 864:order of magnitude 796: 788: 672: 653: 624: 565: 494: 444: 406: 366: 309: 277: 239: 140:Walter M. Elsasser 36: 2996:Planetary science 2901: 2900: 2879: 2878: 2788:Carbonated drinks 2760:Human spaceflight 2640:of items in space 2551: 2550: 2369: 2368: 2223:Research projects 2191: 2162: 2103:Geomagnetic storm 2020:Birkeland current 1678:(12): 1128–1134. 1591:(6212): 981–984. 1474:978-0-521-81808-7 1301:on 19 August 2019 1224:978-1-4020-3488-6 1163:(12): 2207–2212. 884:photodissociation 638:is of this type. 441: 427: 56:charged particles 44:planetary science 27: 3018: 2966: 2965: 2964: 2954: 2953: 2952: 2942: 2941: 2930: 2929: 2928: 2918: 2917: 2909: 2892: 2891: 2890: 2756: 2559: 2414: 2396: 2389: 2382: 2373: 2207:Van Allen Probes 2189: 2160: 1972:Submagnetosphere 1958: 1951: 1944: 1935: 1928: 1927: 1913: 1907: 1906: 1904: 1902: 1887: 1881: 1880: 1878: 1866: 1860: 1859: 1841: 1825:Nature Astronomy 1819: 1813: 1807: 1801: 1800: 1798: 1796: 1781: 1775: 1774: 1749: 1728: 1722: 1721: 1687: 1672:Nature Astronomy 1667: 1661: 1660: 1658: 1656: 1641: 1635: 1634: 1600: 1580: 1574: 1573: 1571: 1569: 1554: 1548: 1547: 1545: 1543: 1528: 1522: 1521: 1485: 1479: 1478: 1458: 1449: 1443: 1442: 1440: 1438: 1427: 1418: 1402: 1396: 1395: 1384: 1378: 1377: 1366: 1360: 1359: 1346: 1340: 1339: 1337: 1335: 1320: 1311: 1310: 1308: 1306: 1286: 1280: 1279: 1274:. 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By 1983, the 132:William Gilbert 128: 122: 98:solar radiation 81:. Farther out, 79:magnetic dipole 19: 17: 12: 11: 5: 3024: 3022: 3014: 3013: 3008: 3003: 2998: 2993: 2988: 2978: 2977: 2971: 2970: 2958: 2946: 2934: 2922: 2899: 2898: 2884: 2881: 2880: 2877: 2876: 2874: 2873: 2868: 2863: 2858: 2857: 2856: 2855: 2854: 2852:for spacecraft 2849: 2841: 2836: 2828: 2823: 2818: 2812: 2810: 2806: 2805: 2803: 2802: 2797: 2792: 2791: 2790: 2780: 2775: 2770: 2764: 2762: 2753: 2747: 2746: 2744: 2743: 2738: 2733: 2728: 2723: 2718: 2717: 2716: 2706: 2701: 2696: 2691: 2686: 2681: 2676: 2675: 2674: 2669: 2659: 2654: 2649: 2644: 2643: 2642: 2637: 2629: 2624: 2618: 2616: 2612: 2611: 2609: 2608: 2607: 2606: 2596: 2591: 2586: 2581: 2576: 2570: 2568: 2562: 2561: 2554: 2552: 2549: 2548: 2546: 2545: 2544: 2543: 2533: 2531:Microorganisms 2528: 2523: 2522: 2521: 2516: 2511: 2506: 2501: 2496: 2491: 2480: 2478: 2474: 2473: 2471: 2470: 2465: 2460: 2459: 2458: 2448: 2443: 2438: 2433: 2428: 2426:The human body 2422: 2420: 2411: 2407: 2406: 2401: 2399: 2398: 2391: 2384: 2376: 2367: 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127: 119: 117: 115: 111: 110:space physics 107: 103: 99: 95: 91: 88: 84: 80: 76: 71: 69: 65: 61: 57: 53: 49: 48:magnetosphere 45: 41: 33: 2986:Geomagnetism 2973: 2968:Solar System 2885: 2773:Architecture 2657:Colonization 2631:Archaeology 2593: 2446:Neuroscience 2403:... in space 2339:Ring systems 2334:Lunar swirls 2211: 2194: 2065:Ring current 2060:Plasmasphere 2044: 2035:Magnetopause 1964: 1921: 1911: 1899:. Retrieved 1895:earthsky.org 1894: 1885: 1864: 1829: 1823: 1817: 1805: 1793:. Retrieved 1789: 1779: 1737: 1733: 1726: 1675: 1671: 1665: 1653:. Retrieved 1649: 1639: 1588: 1584: 1578: 1566:. Retrieved 1562: 1552: 1540:. Retrieved 1536: 1526: 1493: 1489: 1483: 1460: 1447: 1435:. Retrieved 1415: 1400: 1391: 1382: 1373: 1364: 1353: 1344: 1332:. Retrieved 1328:the original 1303:. 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In 1958, 166:cosmic rays 83:field lines 2991:Ionosphere 2980:Categories 2866:Telescopes 2751:Technology 2604:Weathering 2451:Psychology 2436:Locomotion 2293:Ganymedian 2166:Cluster II 2147:Satellites 2123:Heliopause 2080:Solar wind 2030:Ionosphere 2004:Polar wind 1999:Jet stream 1876:2305.00809 1839:2304.00031 1747:2012.07926 1685:1907.09068 1655:17 January 1568:17 January 1542:3 December 954:References 915:Tau Boötis 899:exoplanets 866:, and its 766:See also: 697:anisotropy 215:solar wind 186:solar wind 178:Explorer 3 170:Explorer 1 155:outer core 94:solar wind 2932:Astronomy 2847:for Earth 2834:Batteries 2816:Logistics 2768:Accidents 2714:Christmas 2579:Corrosion 2519:Tortoises 2477:Non-human 2329:Gas torus 2324:Flux tube 2308:Neptunian 2298:Saturnian 2252:SuperDARN 2153:Full list 2025:Bow shock 1994:Geosphere 1772:212883637 1718:198147426 1710:2397-3366 1650:Space.com 1631:206560188 1598:1411.6875 1563:Space.com 1518:250897924 1437:5 January 1305:19 August 1243:ignored ( 1233:cite book 1137:1005.1527 1117:122318569 1074:646887856 931:YZ Ceti b 927:HAT-P-11b 676:Bow shock 656:Bow shock 642:Structure 610:≈ 551:≪ 508:, Earth, 480:≫ 404:ρ 395:μ 54:in which 40:astronomy 2709:Religion 2699:Military 2635:of Earth 2514:Primates 2441:Medicine 1901:7 August 1795:7 August 1623:25414310 1537:nasa.gov 1408:Archived 943:Geospace 937:See also 852:Ganymede 669:R Hydrae 587:). When 514:Ganymede 136:terrella 114:aeronomy 2920:Physics 2906:Portals 2871:Weapons 2839:Nuclear 2800:Writing 2795:Toilets 2778:Farming 2726:Tourism 2721:Selfies 2662:Economy 2627:Alcohol 2615:Society 2599:Weather 2574:Climate 2484:Animals 2431:Hygiene 2410:Biology 2359:Neptune 2344:Jupiter 2303:Uranian 2283:Martian 2273:Hermian 2176:Geotail 1844:Bibcode 1752:Bibcode 1740:: A59, 1690:Bibcode 1603:Bibcode 1585:Science 1498:Bibcode 1203:Bibcode 1165:Bibcode 1097:Bibcode 974:. NASA. 848:Neptune 836:Jupiter 828:Mercury 800:equator 526:Neptune 510:Jupiter 506:Mercury 120:History 2843:Solar 2830:Power 2826:Mining 2731:Voting 2679:Ethics 2667:Mining 2652:Burial 2584:Debris 2536:Plants 2354:Uranus 2349:Saturn 2288:Jovian 2230:EISCAT 2202:THEMIS 2190:(2015) 2188:  2161:(2016) 2159:  1984:Aurora 1770:  1716:  1708:  1629:  1621:  1516:  1471:  1433:. NASA 1414:NASA, 1268:  1221:  1115:  1072:  1062:  1001:  878:, and 860:Saturn 854:. The 850:, and 844:Uranus 840:Saturn 770:, and 693:plasma 524:, and 522:Uranus 518:Saturn 211:period 112:, and 90:plasma 68:dynamo 2944:Stars 2861:Radar 2741:Women 2704:Music 2672:Trade 2499:Frogs 2468:Sleep 2418:Human 2278:Lunar 2240:SHARE 2235:HAARP 2196:Polar 2181:IMAGE 2157:Arase 1871:arXiv 1834:arXiv 1768:S2CID 1742:arXiv 1714:S2CID 1680:arXiv 1627:S2CID 1593:arXiv 1514:S2CID 1457:(PDF) 1199:(PDF) 1132:arXiv 1113:S2CID 1034:2012. 911:gauss 880:Pluto 872:Venus 832:Earth 804:sieve 577:Venus 2783:Food 2689:Food 2589:Dust 2509:Mice 2494:Dogs 2489:Cats 2213:Wind 1903:2023 1797:2023 1706:ISSN 1657:2022 1619:PMID 1570:2022 1544:2016 1469:ISBN 1439:2020 1336:2012 1307:2019 1266:ISBN 1245:help 1219:ISBN 1070:OCLC 1060:ISBN 999:ISBN 876:Mars 747:beta 745:and 684:and 636:Mars 152:iron 46:, a 42:and 2736:War 2694:Law 2647:Art 2463:Sex 2186:MMS 1852:doi 1760:doi 1738:645 1698:doi 1611:doi 1589:346 1506:doi 1211:doi 1173:doi 1105:doi 1093:116 100:or 70:. 38:In 2982:: 1920:. 1893:. 1850:. 1842:. 1828:. 1788:. 1766:, 1758:, 1750:, 1736:, 1712:. 1704:. 1696:. 1688:. 1674:. 1648:. 1625:. 1617:. 1609:. 1601:. 1587:. 1561:. 1535:. 1512:. 1504:. 1494:56 1492:. 1467:. 1463:. 1422:^ 1390:. 1372:. 1352:. 1315:^ 1293:. 1237:: 1235:}} 1231:{{ 1217:. 1209:. 1171:. 1161:31 1159:. 1155:. 1111:. 1103:. 1091:. 1068:. 1058:. 1040:^ 1030:. 1026:. 1013:^ 997:. 993:. 970:. 933:. 874:, 846:, 842:, 838:, 834:, 830:, 520:, 516:, 512:, 217:. 116:. 108:, 2908:: 2395:e 2388:t 2381:v 1957:e 1950:t 1943:v 1926:. 1905:. 1879:. 1873:: 1858:. 1854:: 1846:: 1836:: 1830:7 1799:. 1762:: 1754:: 1744:: 1720:. 1700:: 1692:: 1682:: 1676:3 1659:. 1633:. 1613:: 1605:: 1595:: 1572:. 1546:. 1520:. 1508:: 1500:: 1477:. 1441:. 1338:. 1309:. 1247:) 1227:. 1213:: 1205:: 1181:. 1175:: 1167:: 1140:. 1134:: 1119:. 1107:: 1099:: 1076:. 1007:. 619:P 614:R 604:F 601:C 596:R 560:P 555:R 545:F 542:C 537:R 489:P 484:R 474:F 471:C 466:R 439:6 436:1 430:) 422:2 416:W 413:S 408:V 399:0 388:2 382:f 379:r 376:u 373:s 368:B 362:( 354:P 349:R 345:= 339:F 336:C 331:R 304:W 301:S 296:V 272:f 269:r 266:u 263:s 258:B 234:P 229:R

Index

magnetic field lines
astronomy
planetary science
astronomical object
charged particles
magnetic field
celestial body
dynamo
dipole magnetic field
magnetic dipole
field lines
electrically conducting
plasma
solar wind
solar radiation
cosmic radiation
plasma physics
space physics
aeronomy
Magnetosphere chronology
William Gilbert
terrella
Walter M. Elsasser
dynamo theory
Earth's magnetic field
iron
outer core
magnetometers
cosmic rays
Explorer 1

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