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Mercury's magnetic field

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433: 383:. But these passes provided weak constraints on the magnitude of the intrinsic magnetic field, its orientation and its harmonic structure, in part because the coverage of the planetary field was poor and because of the lack of concurrent observations of the solar wind number density and velocity. Since the discovery, Mercury's magnetic field has received a great deal of attention, primarily because of Mercury's small size and slow 59-day-long rotation. 27: 416:, has not cooled over the years, an outer core that has not been completely solidified, and circulates around the interior. Before the discovery of its magnetic field in 1974, it was thought that because of Mercury's small size, its core had cooled over the years. There are still difficulties with this dynamo theory, including the fact that Mercury has a slow, 59-day-long rotation that could not have made it possible to generate a 424:
only at depth, where a strong field is generated. Because of the planet's slow rotation, the resulting magnetic field is dominated by small-scale components that fluctuate quickly with time. Due to the weak internally generated magnetic field it is also possible that the magnetic field generated by the magnetopause currents exhibits a negative feedback on the dynamo processes, thereby causing the total field to weaken.
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polar regions. In particular, the magnetic "polar cap" where field lines are open to the interplanetary medium is much larger near the south pole. This geometry implies that the south polar region is much more exposed than in the north to charged particles heated and accelerated by solar wind–magnetosphere interactions. The strength of the
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This dynamo is probably weaker than Earth's because it is driven by thermo-compositional convection associated with inner core solidification. The thermal gradient at the core–mantle boundary is subadiabatic, and hence the outer region of the liquid core is stably stratified with the dynamo operating
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James A. Slavin; Brian J. Anderson; Daniel N. Baker; Mehdi Benna; Scott A. Boardsen; George Gloeckler; Robert E. Gold; George C. Ho; Suzanne M. Imber; Haje Korth; Stamatios M. Krimigis; Ralph L. McNutt Jr.; Larry R. Nittler; Jim M. Raines; Menelaos Sarantos; David Schriver; Sean C. Solomon; Richard
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Like Earth's, Mercury's magnetic field is tilted, meaning that the magnetic poles are not located in the same area as the geographic poles. As a result of the north-south asymmetry in Mercury's internal magnetic field, the geometry of magnetic field lines is different in Mercury's north and south
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mission remains an open question. A 1988 J.E.P. Connerney and N.F. Ness review of the Mariner magnetic data noted eight different papers in which were offered no less than fifteen different mathematical models of the magnetic field derived from spherical harmonic analysis of the two close
291:. Mercury's magnetic field is weaker than Earth's because its core had cooled and solidified more quickly than Earth's. Although Mercury's magnetic field is much weaker than Earth's magnetic field, it is still strong enough to deflect the 505:
made a fly-by of Mercury back in 1974, its signals measured the bow shock, the entrance and exit from the magnetopause, and that the magnetospheric cavity is ~20 times smaller than Earth's, all of which had presumably decayed during the
1091:; Haje Korth; Michael E. Purucker; Reka M. Winslow; James A. Slavin; Sean C. Solomon; Ralph L. McNutt Jr.; Jim M. Raines; Thomas H. Zurbuchen (September 2011). "The Global Magnetic Field of Mercury from MESSENGER Orbital Observations". 448:
There have been various ways that Mercury's magnetic field has been measured. In general, the inferred equivalent internal dipole field is smaller when estimated on the basis of magnetospheric size and shape (~150–200 nT
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A. V. Lukyanov; S. Barabash; R. Lundin; P. C. Brandt (August 4, 2000). "Energetic neutral atom imaging of Mercuryâ€Čs magnetosphere 2. Distribution of energetic charged particles in a compact magnetosphere – Abstract".
339:(Slavin and Holzer 1979b)." They concluded that "the lack of agreement among models is due to fundamental limitations imposed by the spatial distribution of available observations." Anderson 1328:
D. Heyner; J. Wicht; N. Gomez-Perez; D. Schmitt; H. U. Auster; K. H.Glassmeier (2011). "Evidence from Numerical Experiments for a Feedback Dynamo Generating Mercury{\rsquo}s Magnetic Field".
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is a Mercury radius of 2436 km). In addition they pointed out that "estimates of the dipole obtained from bow shock and/or magnetopause positions (only) range from approximately 200 nT-R
566: 453:). Recent Earth-based radar measurements of Mercury's rotation revealed a slight rocking motion explaining that Mercury's core is at least partially molten, implying that 1014: 682: 485:
spacraft noted that Mercury's magnetic field is responsible for several magnetic "tornadoes" – twisted bundles of magnetic fields connecting the planetary field to
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Kabin, K.; Heimpel, M. H.; Rankin, R.; Aurnou, J. M.; GĂłmez-PĂ©rez, N.; Paral, J.; Gombosi, T. I.; Zurbuchen, T. H.; Koehn, P. L.; DeZeeuw, D. L. (2007-06-29).
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it interacts with in its orbit is relatively strong, the solar wind dynamic pressure at Mercury's orbit is also three times larger than at Earth.
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Before 1974, it was thought that Mercury could not generate a magnetic field because of its relatively small diameter and lack of an
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made a fly-by of Mercury (somewhere around April 1974), it detected a magnetic field that was about 1/100th the total magnitude of
1575: 550:(JAXA) to Mercury. It is launched in October 2018. Part of its mission objectives will be to elucidate Mercury's magnetic field. 3984: 347:
data from many orbits around Mercury – as opposed to just a few high-speed flybys – found that the dipole moment is 195 ± 10 nT-R
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spacecraft was expected to make more than 500 million measurements of Mercury's magnetic field using its sensitive
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encountered magnetic "tornadoes" during its second fly-by on October 6, 2008, which could possibly replenish the
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K. H. Glassmeier; et al. (2010). "The fluxgate magnetometer of the BepiColombo Mercury Planetary Orbiter".
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The European Space Agency (Esa) has signed an industrial contract to build a probe to send to the planet Mercury
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made six different sets of magnetic field measurements as it passed through Mercury's magnetopause.
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Giacomo Giampieri; André Balogh (2001). "Modelling of magnetic field measurements at Mercury".
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Mercury's magnetic field tends to be stronger at the equator than at other areas of Mercury.
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led to its discovery in 1974; the spacecraft measured the field's strength as 1.1% that of
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flyby. Even though the field is just over 1% as strong as Earth's, its detection by
279:. At the Hermean equator, the relative strength of the magnetic field is around 300 4066: 3797: 3792: 3767: 3248: 2723: 2658: 2363: 2112: 2031: 1682: 1365: 1273: 699:"MESSENGER Observations of Reconnection and Its Effects on Mercury's Magnetosphere" 462: 280: 145: 83: 813: 514:
was taken by some scientists as an indication that Mercury's outer core was still
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Scientists noted that Mercury's magnetic field can be extremely "leaky," because
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Whether the magnetic field changed to any significant degree between the
1257: 1099:(6051). American Association for the Advancement of Science: 1859–1862. 4040: 3908: 1244:(7122). Katlenberg-Lindau: Max-Planck Institute of Germany: 1056–1058. 567:"MESSENGER Data from Mercury Orbit Confirms Theories, Offers Surprises" 359: 284: 231:(meaning the field has only two magnetic poles) apparently global, on 489:– that are some 800 km wide or a third the total radius of the planet. 477: 4035: 3962: 3934: 3716: 1475:"Iron 'snow' helps maintain Mercury's magnetic field, scientists say" 1056:. In Faith Vilas; Clark R. Chapman; Mildred Shapley Matthews (eds.). 228: 216: 105: 3666: 760:(14–15). Laurel, Maryland: Applied Physics Laboratory: 1677–1684. 728:"Mercury's magnetopause and bow shock from MESSENGER observations" 624: 622: 620: 523: 476: 431: 358: 1015:"Mercury: its composition, internal structure and magnetic field" 1551:"Magnetic Tornadoes Could Liberate Mercury's Tenuous Atmosphere" 1528: 1525:"Magnetic Tornadoes Could Liberate Mercury's Tenuous Atmosphere" 1409: 1406:"Magnetic field lines differ at Mercury's north and south poles" 817: 519: 445:
and the tilt of the dipole moment are completely unconstrained.
184: 3670: 1770: 1576:"How Magnetic Tornadoes Might Regenerate Mercury's Atmosphere" 1202: 1200: 31:
Graph showing relative strength of Mercury's magnetic field.
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The magnetic field itself is thought to originate from the
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The origins of the magnetic field can be explained by the
864: 862: 836: 834: 1500:"Mercury's magnetic field measured by MESSENGER orbiter" 901:"Molten core solves mystery of Mercury's magnetic field" 1289:"A feedback dynamo generating Mercury's magnetic field" 245:. The origin of the magnetic field can be explained by 1287:
K. H. Glassmeier; H. U. Auster; U. Motschmann (2007).
894: 892: 890: 501:(or "exosphere", as referred to by astronomers). When 1060:. The University of Arizona Press. pp. 494–513. 299:. Because Mercury's magnetic field is weak while the 465:. During its first 88 days in orbit around Mercury, 4049: 3998: 3955: 3879: 3811: 3745: 3704: 3611: 3591: 3574: 3539: 3530: 3508: 3485: 3478: 3462: 3432: 2189: 2151: 2093: 2045: 1977: 1959: 1871: 1855: 1824: 1817: 1234:"A deep dynamo generating Mercury's magnetic field" 215: 207: 197: 182: 163: 144: 136: 131: 123: 115: 104: 93: 76: 66: 61: 53: 41: 36: 1633:"Molten core may explain Mercury's magnetic field" 659:. NASA Goddard Space Flight Center. Archived from 367:led to the discovery of Mercury's magnetic field. 697:D. Starr; Pavel TrĂĄvníček; Thomas H. Zurbuchen. 249:. The magnetic field is strong enough near the 1549:NASA/Goddard Space Flight Center (2009-06-02). 964:(1). University of California, Berkeley: 1–15. 275:The magnetic field is about 1.1% as strong as 3682: 1782: 8: 681:: CS1 maint: multiple names: authors list ( 597:"Magnetic Fields of the Terrestrial Planets" 19: 1147:"NASA Spots Mysterious 'Spider' on Mercury" 631:"Mercury: Magnetic Field and Magnetosphere" 3689: 3675: 3667: 3536: 3482: 1821: 1789: 1775: 1767: 1683:"ESA Science & Technology: Fact Sheet" 1437:(14–15). Imperial College, London: 163–7. 18: 1450: 1312: 1209:"Measuring the Magnetic Field of Mercury" 1404:Lynn Jenner; Brian Dunbar (2011-06-16). 335:(Russell 1977) to approximately 400 nT-R 1051:"Mercury's Magnetic Field and Interior" 633:. University of California, Los Angeles 558: 457:helps maintain the magnetic field. The 428:Magnetic poles and magnetic measurement 674: 390:, although this is uncertain as yet. 7: 1049:J.E.P. Connerney; N.F. Ness (1988). 518:, or at least partially liquid with 1711:Japan Aerospace Exploration Agency 722:Reka Moldovan; Brian J. Anderson; 548:Japan Aerospace Exploration Agency 14: 3990:Sura Ionospheric Heating Facility 1658:"European probe aims for Mercury" 3649: 3638: 3637: 1523:Steigerwald, Bill (2009-06-02). 1013:Lidunka Vočadlo; Lars Stixrude. 25: 1232:Christensen, Ulrich R. (2006). 843:"The Magnetic Poles of Mercury" 319:flybys, with reported centered 283:, which is weaker than that of 1612:Lunar and Planetary Laboratory 1174:"Science: Mercury's Magnetism" 629:C. T. Russell; J. G. Luhmann. 16:Mercury's small magnetic field 1: 3846:Interplanetary magnetic field 3788:Magnetosphere particle motion 2181:Skinakas (hypothetical basin) 1656:Amos, Jonathan (2008-01-18). 1574:Brian Ventrudo (2009-06-03). 1461:10.1016/S0032-0633(01)00101-5 899:Jon Cartwright (2007-05-04). 774:10.1016/S0032-0633(01)00106-4 595:Russell, C. T. (1992-12-03). 301:interplanetary magnetic field 3470:Hypothetical moon of Mercury 1531:/Goddard Space Flight Center 1379:Randy Russell (2009-05-29). 1207:Staff Writers (2011-05-20). 1182:. 1975-03-31. Archived from 978:10.1016/j.icarus.2007.11.028 924:Randy Russell (2009-06-01). 841:Randy Russell (2009-05-29). 789:"New Discoveries at Mercury" 787:Tony Phillips (2008-07-03). 573:. 2011-06-06. Archived from 323:ranging from 136 to 350 nT-R 227:is approximately a magnetic 869:Jerry Coffey (2009-07-24). 820:Goddard Space Flight Center 754:Planetary and Space Science 4136: 3851:Heliospheric current sheet 3518:Mercury-crossing asteroids 1631:David Shiga (2007-05-03). 1601:"Mercury's Magnetic Field" 926:"Magnetosphere of Mercury" 542:is a joint mission of the 397: 268: 3632: 1804: 1758:10.1016/j.pss.2008.06.018 343:2011, using high-quality 132:Magnetospheric parameters 24: 3803:Van Allen radiation belt 3783:Magnetosphere chronology 871:"Mercury Magnetic Field" 704:. University of Colorado 225:Mercury's magnetic field 20:Magnetosphere of Mercury 3712:Atmospheric circulation 3599:Colonization of Mercury 1750:2010P&SS...58..287G 1599:Kerri Donaldson Hanna. 1443:2001P&SS...49.1637G 1385:Windows to the Universe 1350:10.1126/science.1207290 1113:10.1126/science.1211001 930:Windows to the Universe 847:Windows to the Universe 766:2001P&SS...49.1677L 321:magnetic dipole moments 271:Magnetic field strength 208:Maximum particle energy 3722:Earth's magnetic field 814:"Planetary Fact Sheet" 490: 437: 381:Earth's magnetic field 368: 243:Earth's magnetic field 189:Na, O, K, Mg, Ca, S, H 82:2 to 6 Ă— 10 3826:Coronal mass ejection 3746:Earth's magnetosphere 2944:Kuan Han-Chʻing 1608:University of Arizona 657:Planetary Fact Sheets 544:European Space Agency 480: 473:Field characteristics 435: 362: 3999:Other magnetospheres 3861:Solar particle event 2994:Li Chʻing-Chao 1314:10.1029/2007GL031662 1145:(January 30, 2008). 1089:Catherine L. Johnson 724:Catherine L. Johnson 651:Williams, David, R. 487:interplanetary space 3450:Inter-crater plains 1342:2011Sci...334.1690H 1336:(6063): 1690–1693. 1305:2007GeoRL..3422201G 1258:10.1038/nature05342 1250:2006Natur.444.1056C 1186:on January 22, 2011 1105:2011Sci...333.1859A 1087:Brian J. Anderson; 970:2008Icar..195....1K 812:Williams, David R. 522:and possibly other 21: 1706:"MM - BepiColombo" 1293:Geophys. Res. Lett 1022:UCL Earth Sciences 491: 438: 369: 257:, which induces a 4102: 4101: 3956:Research projects 3924: 3895: 3836:Geomagnetic storm 3753:Birkeland current 3664: 3663: 3607: 3606: 3526: 3525: 3458: 3457: 2504:ChƏng ChʼƏl 2499:Chiang Kʻui 2138:Santa MarĂ­a Rupes 2007:Mearcair Planitia 1992:Borealis Planitia 1987:Apārangi Planitia 1738:Planet. Space Sci 1431:Planet. Space Sci 1381:"Mercury's Poles" 1067:978-0-8165-1085-6 443:quadrupole moment 222: 221: 211:up to 50 keV 67:Radius of Mercury 4127: 4120:Mercury (planet) 3940:Van Allen Probes 3922: 3893: 3705:Submagnetosphere 3691: 3684: 3677: 3668: 3653: 3641: 3640: 3537: 3483: 3004:Liang Kʻai 2209:Africanus Horton 2133:Resolution Rupes 2123:Enterprise Rupes 2103:Antoniadi Dorsum 2070:Goldstone Vallis 2065:Goldstone Catena 2037:Utaridi Planitia 2022:Stilbon Planitia 2002:Caloris Planitia 1822: 1791: 1784: 1777: 1768: 1762: 1761: 1744:(1–2): 287–299. 1733: 1727: 1726: 1724: 1723: 1714:. 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3416: 3411: 3406: 3401: 3396: 3391: 3386: 3381: 3376: 3371: 3366: 3361: 3356: 3351: 3346: 3341: 3336: 3331: 3326: 3321: 3316: 3311: 3306: 3301: 3296: 3291: 3286: 3281: 3276: 3271: 3266: 3261: 3256: 3251: 3246: 3241: 3236: 3231: 3226: 3221: 3216: 3211: 3206: 3201: 3196: 3191: 3186: 3181: 3176: 3171: 3166: 3161: 3156: 3151: 3146: 3141: 3136: 3131: 3126: 3121: 3116: 3111: 3106: 3101: 3096: 3091: 3086: 3081: 3076: 3071: 3066: 3061: 3056: 3051: 3046: 3041: 3036: 3031: 3026: 3021: 3016: 3011: 3006: 3001: 2996: 2991: 2986: 2981: 2976: 2971: 2966: 2961: 2956: 2951: 2946: 2941: 2936: 2931: 2926: 2921: 2916: 2911: 2906: 2901: 2896: 2891: 2886: 2881: 2876: 2871: 2866: 2861: 2856: 2851: 2846: 2841: 2836: 2831: 2826: 2821: 2816: 2811: 2806: 2801: 2796: 2791: 2786: 2781: 2776: 2771: 2766: 2761: 2756: 2751: 2746: 2744:Guido d'Arezzo 2741: 2736: 2731: 2726: 2721: 2716: 2711: 2706: 2701: 2696: 2691: 2686: 2681: 2676: 2671: 2666: 2661: 2656: 2651: 2646: 2641: 2636: 2631: 2626: 2621: 2616: 2611: 2606: 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1908: 1903: 1898: 1893: 1888: 1883: 1877: 1875: 1869: 1868: 1866: 1865: 1859: 1857: 1853: 1852: 1850: 1849: 1847:Magnetic field 1844: 1839: 1834: 1828: 1826: 1819: 1815: 1814: 1812: 1811: 1805: 1802: 1801: 1796: 1794: 1793: 1786: 1779: 1771: 1764: 1763: 1728: 1704:Staff (2008). 1696: 1674: 1648: 1623: 1591: 1580:Universe Today 1566: 1541: 1515: 1491: 1466: 1452:10.1.1.25.5685 1421: 1396: 1371: 1320: 1299:(22): L22201. 1279: 1224: 1196: 1165: 1134: 1079: 1066: 1041: 1005: 941: 916: 886: 875:Universe Today 858: 830: 804: 779: 743: 714: 688: 643: 616: 587: 557: 555: 552: 546:(ESA) and the 534: 528: 474: 471: 429: 426: 418:magnetic field 414:center of mass 395: 392: 356: 353: 348: 336: 332: 328: 324: 266: 263: 233:planet Mercury 220: 219: 213: 212: 209: 205: 204: 199: 198:Plasma sources 195: 194: 190: 187: 180: 179: 174: 168: 161: 160: 155: 149: 142: 141: 138: 134: 133: 129: 128: 125: 121: 120: 113: 112: 109: 102: 101: 98: 96:field strength 91: 90: 80: 74: 73: 68: 64: 63: 62:Internal field 59: 58: 55: 54:Discovery date 51: 50: 43: 39: 38: 34: 33: 30: 15: 13: 10: 9: 6: 4: 3: 2: 4132: 4121: 4118: 4116: 4113: 4112: 4110: 4093: 4090: 4088: 4085: 4083: 4080: 4078: 4075: 4074: 4073: 4070: 4068: 4065: 4063: 4060: 4058: 4055: 4054: 4052: 4048: 4042: 4039: 4037: 4034: 4032: 4029: 4027: 4024: 4022: 4019: 4017: 4014: 4012: 4009: 4007: 4004: 4003: 4001: 3997: 3991: 3988: 3986: 3983: 3979: 3976: 3975: 3974: 3971: 3969: 3966: 3964: 3961: 3960: 3958: 3954: 3948: 3947: 3943: 3941: 3938: 3936: 3933: 3931: 3930: 3926: 3920: 3917: 3915: 3912: 3910: 3907: 3905: 3902: 3900: 3897: 3891: 3888: 3885: 3884: 3882: 3878: 3872: 3871:Space weather 3869: 3867: 3866:Space climate 3864: 3862: 3859: 3857: 3854: 3852: 3849: 3847: 3844: 3842: 3839: 3837: 3834: 3832: 3829: 3827: 3824: 3822: 3819: 3818: 3816: 3814: 3810: 3804: 3801: 3799: 3796: 3794: 3791: 3789: 3786: 3784: 3781: 3779: 3778:Magnetosphere 3776: 3774: 3773:Magnetosheath 3771: 3769: 3766: 3764: 3761: 3759: 3756: 3754: 3751: 3750: 3748: 3744: 3738: 3735: 3733: 3730: 3728: 3725: 3723: 3720: 3718: 3715: 3713: 3710: 3709: 3707: 3703: 3699: 3692: 3687: 3685: 3680: 3678: 3673: 3672: 3669: 3657: 3656: 3652: 3647: 3645: 3644: 3635: 3634: 3631: 3625: 3622: 3620: 3617: 3616: 3614: 3610: 3600: 3597: 3596: 3594: 3590: 3583: 3580: 3579: 3577: 3573: 3566: 3563: 3560: 3559: 3555: 3552: 3551: 3547: 3546: 3544: 3538: 3535: 3533: 3529: 3519: 3516: 3515: 3513: 3511: 3507: 3501: 3498: 3496: 3493: 3492: 3490: 3488: 3484: 3481: 3477: 3471: 3468: 3467: 3465: 3461: 3451: 3448: 3446: 3445:Ghost craters 3443: 3441: 3438: 3437: 3435: 3431: 3425: 3422: 3420: 3417: 3415: 3412: 3410: 3407: 3405: 3402: 3400: 3397: 3395: 3392: 3390: 3387: 3385: 3382: 3380: 3377: 3375: 3372: 3370: 3367: 3365: 3362: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3340: 3337: 3335: 3332: 3330: 3327: 3325: 3322: 3320: 3317: 3315: 3312: 3310: 3307: 3305: 3302: 3300: 3297: 3295: 3292: 3290: 3287: 3285: 3282: 3280: 3277: 3275: 3272: 3270: 3267: 3265: 3262: 3260: 3257: 3255: 3252: 3250: 3247: 3245: 3242: 3240: 3237: 3235: 3232: 3230: 3227: 3225: 3222: 3220: 3217: 3215: 3212: 3210: 3207: 3205: 3202: 3200: 3197: 3195: 3192: 3190: 3187: 3185: 3182: 3180: 3177: 3175: 3172: 3170: 3167: 3165: 3162: 3160: 3157: 3155: 3152: 3150: 3147: 3145: 3142: 3140: 3137: 3135: 3132: 3130: 3127: 3125: 3122: 3120: 3117: 3115: 3112: 3110: 3107: 3105: 3102: 3100: 3097: 3095: 3092: 3090: 3087: 3085: 3082: 3080: 3077: 3075: 3072: 3070: 3067: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3045: 3042: 3040: 3037: 3035: 3032: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3010: 3007: 3005: 3002: 3000: 2997: 2995: 2992: 2990: 2987: 2985: 2982: 2980: 2977: 2975: 2972: 2970: 2967: 2965: 2962: 2960: 2957: 2955: 2952: 2950: 2947: 2945: 2942: 2940: 2937: 2935: 2932: 2930: 2927: 2925: 2922: 2920: 2917: 2915: 2912: 2910: 2907: 2905: 2902: 2900: 2899:Judah Ha-Levi 2897: 2895: 2892: 2890: 2887: 2885: 2882: 2880: 2877: 2875: 2872: 2870: 2867: 2865: 2862: 2860: 2857: 2855: 2852: 2850: 2847: 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2430: 2427: 2425: 2422: 2420: 2417: 2415: 2412: 2410: 2407: 2405: 2402: 2400: 2397: 2395: 2392: 2390: 2387: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2335: 2332: 2330: 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2295: 2292: 2290: 2287: 2285: 2282: 2280: 2277: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2196: 2194: 2192: 2188: 2182: 2179: 2177: 2174: 2172: 2169: 2167: 2164: 2162: 2161:Caloris Basin 2159: 2158: 2156: 2150: 2144: 2141: 2139: 2136: 2134: 2131: 2129: 2126: 2124: 2121: 2119: 2116: 2114: 2111: 2109: 2106: 2104: 2101: 2100: 2098: 2092: 2086: 2085:Simeiz Vallis 2083: 2081: 2078: 2076: 2073: 2071: 2068: 2066: 2063: 2061: 2058: 2056: 2053: 2052: 2050: 2044: 2038: 2035: 2033: 2030: 2028: 2025: 2023: 2020: 2018: 2015: 2013: 2012:Odin Planitia 2010: 2008: 2005: 2003: 2000: 1998: 1997:Budh Planitia 1995: 1993: 1990: 1988: 1985: 1984: 1982: 1976: 1970: 1967: 1966: 1964: 1960:Mountains and 1958: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1932: 1929: 1927: 1924: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1892: 1889: 1887: 1884: 1882: 1879: 1878: 1876: 1874: 1870: 1864: 1861: 1860: 1858: 1854: 1848: 1845: 1843: 1840: 1838: 1835: 1833: 1830: 1829: 1827: 1823: 1820: 1816: 1810: 1807: 1806: 1803: 1799: 1792: 1787: 1785: 1780: 1778: 1773: 1772: 1769: 1759: 1755: 1751: 1747: 1743: 1739: 1732: 1729: 1718:on 2016-11-13 1717: 1713: 1712: 1707: 1700: 1697: 1684: 1678: 1675: 1663: 1659: 1652: 1649: 1638: 1637:New Scientist 1634: 1627: 1624: 1613: 1609: 1602: 1595: 1592: 1581: 1577: 1570: 1567: 1556: 1552: 1545: 1542: 1530: 1526: 1519: 1516: 1505: 1501: 1495: 1492: 1480: 1476: 1470: 1467: 1462: 1458: 1453: 1448: 1444: 1440: 1436: 1432: 1425: 1422: 1411: 1407: 1400: 1397: 1386: 1382: 1375: 1372: 1367: 1363: 1359: 1355: 1351: 1347: 1343: 1339: 1335: 1331: 1324: 1321: 1315: 1310: 1306: 1302: 1298: 1294: 1290: 1283: 1280: 1275: 1271: 1267: 1263: 1259: 1255: 1251: 1247: 1243: 1239: 1235: 1228: 1225: 1214: 1210: 1203: 1201: 1197: 1185: 1181: 1180: 1175: 1169: 1166: 1154: 1153: 1148: 1144: 1138: 1135: 1130: 1126: 1122: 1118: 1114: 1110: 1106: 1102: 1098: 1094: 1090: 1083: 1080: 1069: 1063: 1059: 1052: 1045: 1042: 1031:on 2011-09-28 1027: 1023: 1016: 1009: 1006: 995:on 2012-03-27 991: 987: 983: 979: 975: 971: 967: 963: 959: 952: 945: 942: 931: 927: 920: 917: 906: 905:Physics World 902: 895: 893: 891: 887: 876: 872: 865: 863: 859: 848: 844: 837: 835: 831: 819: 815: 808: 805: 794: 790: 783: 780: 775: 771: 767: 763: 759: 755: 747: 744: 729: 725: 718: 715: 700: 692: 689: 684: 678: 662: 658: 654: 647: 644: 632: 625: 623: 621: 617: 605: 598: 591: 588: 577:on 2013-02-04 576: 572: 568: 562: 559: 553: 551: 549: 545: 541: 540: 532: 529: 527: 525: 521: 517: 513: 509: 504: 500: 496: 488: 484: 479: 472: 470: 468: 464: 460: 456: 452: 446: 444: 434: 427: 425: 421: 419: 415: 411: 407: 406:dynamo theory 401: 400:Dynamo theory 393: 391: 389: 384: 382: 378: 374: 366: 361: 354: 352: 346: 342: 322: 318: 313: 309: 304: 302: 298: 297:magnetosphere 295:, inducing a 294: 290: 286: 282: 278: 272: 264: 262: 260: 259:magnetosphere 256: 252: 248: 247:dynamo theory 244: 240: 239: 234: 230: 226: 218: 214: 210: 206: 203: 200: 196: 188: 186: 181: 177: 173: 169: 166: 162: 158: 154: 150: 147: 143: 139: 135: 130: 127:400 km/s 126: 122: 118: 114: 110: 107: 103: 99: 97: 92: 89: 85: 81: 79: 75: 69: 65: 60: 56: 52: 49: 48: 44: 42:Discovered by 40: 35: 28: 23: 4072:Ring systems 4067:Lunar swirls 4005: 3944: 3927: 3798:Ring current 3793:Plasmasphere 3768:Magnetopause 3648: 3636: 3556: 3548: 3369:SveinsdĂłttir 3274:Rachmaninoff 3099:Michelangelo 3094:Mendes Pinto 3029:Ma Chih-Yuan 2684:Gainsborough 2489:Chao Meng-Fu 2434:Brunelleschi 2264:Amru Al-Qays 2244:Al-Hamadhani 2113:Beagle Rupes 2032:Tir Planitia 1926:Michelangelo 1846: 1741: 1737: 1731: 1720:. Retrieved 1716:the original 1709: 1699: 1687:. Retrieved 1677: 1666:. Retrieved 1661: 1651: 1640:. Retrieved 1636: 1626: 1615:. Retrieved 1594: 1583:. Retrieved 1579: 1569: 1558:. Retrieved 1555:ScienceDaily 1554: 1544: 1533:. Retrieved 1518: 1507:. Retrieved 1503: 1494: 1483:. Retrieved 1481:. 2008-05-08 1479:ScienceDaily 1478: 1469: 1434: 1430: 1424: 1413:. Retrieved 1399: 1388:. Retrieved 1384: 1374: 1333: 1329: 1323: 1296: 1292: 1282: 1241: 1237: 1227: 1216:. Retrieved 1212: 1188:. Retrieved 1184:the original 1177: 1168: 1156:. Retrieved 1150: 1137: 1096: 1092: 1082: 1071:. Retrieved 1057: 1044: 1033:. Retrieved 1026:the original 1021: 1008: 997:. Retrieved 990:the original 961: 957: 944: 933:. Retrieved 929: 919: 908:. Retrieved 904: 878:. Retrieved 874: 850:. Retrieved 846: 822:. Retrieved 807: 796:. Retrieved 793:Science@Nasa 792: 782: 757: 753: 746: 735:. Retrieved 733:. EPSC – DPS 717: 706:. Retrieved 691: 665:. Retrieved 661:the original 656: 646: 635:. Retrieved 608:. Retrieved 590: 579:. Retrieved 575:the original 570: 561: 537: 536: 530: 511: 507: 502: 494: 492: 482: 466: 463:magnetometer 458: 450: 447: 439: 422: 403: 385: 376: 370: 364: 344: 340: 316: 307: 305: 274: 253:to slow the 236: 235:. Data from 224: 223: 175: 171: 170:10–100  156: 152: 146:Magnetopause 45: 3978:Unwin Radar 3904:Double Star 3841:Heliosphere 3831:Solar flare 3565:BepiColombo 3561:(2004–2015) 3553:(1973–1975) 3532:Exploration 3399:Villa-Lobos 3379:To Ngoc Van 3344:Shakespeare 3279:Raden Saleh 3164:Mussorgskij 2844:Hovnatanian 2604:Dostoevskij 2484:Chaikovskij 2449:Callicrates 2329:Baranauskas 2299:Aristoxenes 2294:Apollodorus 2046:Canyons and 1936:Shakespeare 1873:Quadrangles 1863:Quadrangles 667:6 September 539:BepiColombo 531:BepiColombo 455:iron "snow" 165:Magnetotail 100:300 nT 94:Equatorial 4109:Categories 4026:Ganymedian 3899:Cluster II 3880:Satellites 3856:Heliopause 3813:Solar wind 3763:Ionosphere 3737:Polar wind 3732:Jet stream 3550:Mariner 10 3359:Stravinsky 3259:Praxiteles 3254:Polygnotus 3134:Monteverdi 3104:Mickiewicz 3059:Mark Twain 2639:Enheduanna 2539:Cunningham 2409:Botticelli 2324:Balanchine 2284:Anguissola 2214:Ahmad Baba 2152:Basins and 2128:Hero Rupes 2094:Ridges and 1978:Plains and 1837:Atmosphere 1722:2014-02-07 1668:2008-01-21 1664:. BBC News 1642:2011-07-25 1617:2011-07-25 1585:2011-07-25 1560:2011-07-25 1535:2009-07-18 1509:2019-08-22 1485:2011-07-18 1415:2011-07-18 1390:2011-07-18 1218:2011-07-16 1213:SpaceDaily 1190:2011-07-23 1073:2012-01-01 1035:2011-07-16 999:2011-07-16 935:2011-07-16 910:2011-07-16 880:2011-07-16 852:2011-07-16 824:2011-07-25 798:2011-07-16 737:2011-07-26 708:2011-07-27 637:2011-07-18 610:2011-07-26 581:2011-07-26 554:References 512:Mariner 10 503:Mariner 10 499:atmosphere 398:See also: 377:Mariner 10 373:atmosphere 365:Mariner 10 363:Data from 317:Mariner 10 308:Mariner 10 293:solar wind 269:See also: 255:solar wind 238:Mariner 10 202:Solar wind 119:parameters 117:Solar wind 57:April 1974 47:Mariner 10 4062:Gas torus 4057:Flux tube 4041:Neptunian 4031:Saturnian 3985:SuperDARN 3886:Full list 3758:Bow shock 3727:Geosphere 3624:Sub-Earth 3582:Mercury-P 3558:MESSENGER 3510:Asteroids 3479:Astronomy 3414:Xiao Zhao 3389:VelĂĄzquez 3334:Scarlatti 3299:Rembrandt 3284:Raditladi 3269:Qi Baishi 3264:Prokofiev 3014:Lovecraft 2984:Lermontov 2884:Izquierdo 2799:Hiroshige 2789:Hemingway 2774:Hawthorne 2769:Hauptmann 2679:Futabatei 2579:Derzhavin 2569:Delacroix 2519:Coleridge 2474:Cervantes 2399:Boccaccio 2369:Belinskij 2359:Beethoven 2304:AƛvaghoáčŁa 2234:Al-Akhtal 2229:Akutagawa 2204:Abu Nuwas 1962:volcanoes 1941:Raditladi 1906:Discovery 1886:Beethoven 1818:Geography 1685:. esa.int 1447:CiteSeerX 508:MESSENGER 495:MESSENGER 483:MESSENGER 467:MESSENGER 459:MESSENGER 355:Discovery 345:MESSENGER 312:MESSENGER 251:bow shock 151:1.4  140:Intrinsic 37:Discovery 3643:Category 3592:See also 3575:Proposed 3542:and past 3487:Transits 3364:Sullivan 3339:Schubert 3234:Petrarch 3159:Murasaki 3154:MunkĂĄcsy 3084:Melville 3024:Lysippus 2979:Leopardi 2974:Larrocha 2964:Kurosawa 2959:Kunisada 2904:Kalidasa 2809:Hodgkins 2804:Hitomaro 2764:Harunobu 2699:Ghiberti 2669:Flaubert 2664:Firdousi 2654:Faulkner 2634:Eminescu 2594:Dominici 2554:De Graft 2534:Couperin 2459:Carducci 2419:Bramante 2404:Boethius 2394:Bjornson 2319:Balagtas 2249:Al-Jāhiz 1980:plateaus 1951:Victoria 1911:Eminescu 1891:Borealis 1842:Features 1689:April 5, 1504:phys.org 1358:22194574 1266:17183319 1158:July 20, 1152:Fox News 1129:26991651 1121:21960627 986:55170805 677:cite web 289:Ganymede 287:'s moon 265:Strength 148:distance 4092:Neptune 4077:Jupiter 4036:Uranian 4016:Martian 4006:Hermian 3909:Geotail 3619:Fiction 3612:Related 3584:(~2031) 3540:Current 3440:Geology 3404:Vivaldi 3384:Tolstoj 3294:Raphael 3244:Picasso 3239:Phidias 3224:Oskison 3209:Neumann 3199:Nureyev 3179:Nampeyo 3174:Nabokov 3124:MoliĂšre 3114:Mistral 3079:Matisse 3074:Matabei 3069:Martial 3044:Mansart 3034:Machaut 3019:Lu Hsun 2989:Lessing 2954:Kulthum 2934:Kipling 2924:KertĂ©sz 2889:Janáček 2874:Imhotep 2869:Ictinus 2854:Hun Kal 2824:Holberg 2819:Holbein 2814:Hokusai 2754:Han Kan 2689:Gauguin 2674:Flaiano 2649:Equiano 2644:Enwonwu 2624:Eastman 2609:Dowland 2589:Dickens 2584:Desprez 2559:Debussy 2524:Copland 2479:CĂ©zanne 2469:Calvino 2464:Carolan 2429:Bruegel 2389:Bernini 2354:Beckett 2279:Angelou 2274:Aneirin 2239:Alencar 2224:Aksakov 2191:Craters 2048:valleys 1946:Tolstoj 1916:Hokusai 1896:Debussy 1856:Regions 1825:General 1809:Outline 1798:Mercury 1746:Bibcode 1439:Bibcode 1366:2350973 1338:Bibcode 1330:Science 1301:Bibcode 1274:4342216 1246:Bibcode 1101:Bibcode 1093:Science 1058:Mercury 966:Bibcode 762:Bibcode 533:mission 394:Origins 285:Jupiter 277:Earth's 4087:Uranus 4082:Saturn 4021:Jovian 3963:EISCAT 3935:THEMIS 3923:(2015) 3921:  3894:(2016) 3892:  3717:Aurora 3655:Portal 3374:Titian 3329:Sander 3324:Rudaki 3309:Rivera 3304:Renoir 3289:Rameau 3214:Nizami 3194:Neruda 3189:Nawahi 3144:Mozart 3119:Mofolo 3109:Milton 3049:Mansur 3039:Mahler 2949:Kuiper 2929:Khansa 2859:Hurley 2839:Horace 2794:Hesiod 2759:Handel 2724:Goethe 2714:Glinka 2709:Giotto 2704:Gibran 2694:Geddes 2629:Eitoku 2619:Dvorak 2574:Derain 2529:Copley 2514:Chu Ta 2509:Chopin 2494:Chekov 2454:CamĂ”es 2424:BrontĂ« 2414:Brahms 2384:Berkel 2379:Benoit 2339:BartĂłk 2334:Balzac 2259:Amaral 2199:Abedin 2154:fossae 1931:Neruda 1921:Kuiper 1901:Derain 1449:  1364:  1356:  1272:  1264:  1238:Nature 1127:  1119:  1064:  984:  958:Icarus 606:– IGPP 524:metals 516:liquid 341:et al. 229:dipole 217:Aurora 167:length 106:Dipole 4011:Lunar 3973:SHARE 3968:HAARP 3929:Polar 3914:IMAGE 3890:Arase 3495:Earth 3463:Moons 3433:Other 3419:Yeats 3409:Vyasa 3394:Verdi 3354:Sinan 3319:Rodin 3314:Rizal 3204:Nervo 3184:Navoi 3169:Myron 3149:Munch 3139:Moody 3129:Monet 3064:MartĂ­ 3054:March 3009:Liszt 2999:Li Po 2969:Lange 2939:Kƍshƍ 2919:Kenko 2914:Keats 2909:Karsh 2894:Jokai 2864:Ibsen 2834:Homer 2829:Holst 2784:Heine 2779:Haydn 2739:Grieg 2729:Gogol 2719:Gluck 2614:Durer 2599:Donne 2564:Degas 2549:Dario 2444:Byron 2439:Burns 2374:Bello 2349:Bashƍ 2344:Barma 2309:Atget 2289:Anyte 2269:Andal 2254:Alver 2219:Ailey 2096:rupes 1604:(PDF) 1362:S2CID 1270:S2CID 1125:S2CID 1054:(PDF) 1029:(PDF) 1018:(PDF) 993:(PDF) 982:S2CID 954:(PDF) 731:(PDF) 702:(PDF) 600:(PDF) 183:Main 124:Speed 3946:Wind 3500:Mars 3424:Zola 3229:Ovid 3219:Okyo 3089:Mena 2879:Ives 2849:Hugo 2749:Hals 2734:Goya 2544:Dali 2314:Bach 1881:Bach 1691:2015 1529:NASA 1410:NASA 1354:PMID 1262:PMID 1179:Time 1160:2011 1117:PMID 1062:ISBN 818:NASA 683:link 669:2016 653:"Dr" 604:UCLA 520:iron 481:The 410:core 185:ions 137:Type 111:0.0° 108:tilt 3919:MMS 3249:Poe 2659:Fet 2364:Bek 1754:doi 1457:doi 1346:doi 1334:334 1309:doi 1254:doi 1242:444 1109:doi 1097:333 974:doi 962:195 770:doi 4111:: 1752:. 1742:58 1740:. 1708:. 1660:. 1635:. 1610:– 1606:. 1578:. 1553:. 1527:. 1502:. 1477:. 1455:. 1445:. 1435:49 1433:. 1408:. 1383:. 1360:. 1352:. 1344:. 1332:. 1307:. 1297:34 1295:. 1291:. 1268:. 1260:. 1252:. 1240:. 1236:. 1211:. 1199:^ 1176:. 1149:. 1123:. 1115:. 1107:. 1095:. 1020:. 980:. 972:. 960:. 956:. 928:. 903:. 889:^ 873:. 861:^ 845:. 833:^ 816:. 791:. 768:. 758:49 756:. 679:}} 675:{{ 655:. 619:^ 602:. 569:. 526:. 420:. 351:. 327:(R 281:nT 261:. 3690:e 3683:t 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Index


Mariner 10
Magnetic moment
T
m
field strength
Dipole
Solar wind
Magnetopause
Magnetotail
ions
Solar wind
Aurora
dipole
planet Mercury
Mariner 10
Earth's magnetic field
dynamo theory
bow shock
solar wind
magnetosphere
Magnetic field strength
Earth's
nT
Jupiter
Ganymede
solar wind
magnetosphere
interplanetary magnetic field
MESSENGER

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