Abstract
Asteroid 4 Vesta is the only preserved intact example of a large, differentiated protoplanet like those believed to be the building blocks of terrestrial planet accretion. Vesta accreted rapidly from the solar nebula in the inner asteroid belt and likely melted due to heat released due to the decay of 26Al. Analyses of meteorites from the howardite-eucrite-diogenite (HED) suite, which have been both spectroscopically and dynamically linked to Vesta, lead to a model of the asteroid with a basaltic crust that overlies a depleted peridotitic mantle and an iron core. Vesta’s crust may become more mafic with depth and might have been intruded by plutons arising from mantle melting. Constraints on the asteroid’s moments of inertia from the long-wavelength gravity field, pole position and rotation, informed by bulk composition estimates, allow tradeoffs between mantle density and core size; cores of up to half the planetary radius can be consistent with plausible mantle compositions. The asteroid’s present surface is expected to consist of widespread volcanic terrain, modified extensively by impacts that exposed the underlying crust or possibly the mantle. Hemispheric heterogeneity has been observed by poorly resolved imaging of the surface that suggests the possibility of a physiographic dichotomy as occurs on other terrestrial planets. Vesta might have had an early magma ocean but details of the early thermal structure are far from clear owing to model uncertainties and paradoxical observations from the HEDs. Petrological analysis of the eucrites coupled with thermal evolution modeling recognizes two possible mechanisms of silicate-metal differentiation leading to the formation of the basaltic achondrites: equilibrium partial melting or crystallization of residual liquid from the cooling magma ocean. A firmer understanding the plethora of complex physical and chemical processes that contribute to melting and crystallization will ultimately be required to distinguish among these possibilities. The most prominent physiographic feature on Vesta is the massive south polar basin, whose formation likely re-oriented the body axis of the asteroid’s rotation. The large impact represents the likely major mechanism of ejection of fragments that became the HEDs. Observations from the Dawn mission hold the promise of revolutionizing our understanding of 4 Vesta, and by extension, the nature of collisional, melting and differentiation processes in the nascent solar system.
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References
C.M.O.D. Alexander, A.P. Boss, R.W. Carlson, Evolution of the inner solar system: A meteoritic perspective. Science 293, 64–68 (2001)
Y. Amelin, A.N. Krot, I.D. Hutcheon, A.A. Ulyanov, Lead isotopic ages of chondrules and calcium-aluminum-rich inclusions. Science 297 (2002)
G. Arrhenius, S.K. Asunmaa, Aggregation of grains in space. Moon 8, 368–391 (1973)
J. Baer, S.R. Chesley, Astrometric masses of 21 asteroids, and an integrated asteroid ephemeris. Celest. Mech. Dyn. Astron. 100, 27–42 (2008)
J.-A. Barrat, A. Yamaguchi, M. Benoit, J. Cotton, M. Bohn, Geochemistry of diogenites: Still more diversity in their parental melts. Meteorit. Planet. Sci. 43, 1759–1775 (2008)
J.-A. Barrat, A. Yamaguchi, B. Zanda, C. Bollinger, M. Bohn, Relative chronology of crust formation on asteroid Vesta: Insights from the geochemistry of diogenites. Geochim. Cosmochim. Acta 74, 6218–6231 (2010)
K.S. Bartels, T.L. Grove, High-pressure experiments on magnesian eucrite compositions: Constraints on magmatic processes in the eucrite parent body, in Proc. 21st Lunar Planet. Sci. Conf. (1991), pp. 351–365
A.W. Beck, H.Y. McSween, Diogenites as polymict breccias composed of orthopyroxenite and harzburgite. Meteorit. Planet. Sci. 45, 850–872 (2010)
S.V.W. Beckwith, A.I. Sarget, R.S. Chini, R. Guesten, A survey for circumstellar disks around young stellar objects. Astron. J. 99, 924–945 (1990)
R.P. Binzel, S. Xu, Chips off of asteroid 4 Vesta: Evidence for the parent bodies of basaltic achondrites. Science 260, 186–191 (1993)
R.P. Binzel, M.J. Gaffey, P.C. Thomas, B.H. Zellner, A.D. Storrs, E.N. Wells, Geologic mapping of Vesta from 1994 Hubble Space Telescope images. Icarus 128, 95–103 (1997)
R.P. Binzel et al., Interiors of small bodies: Foundations and perspectives. Planet. Space Sci. 51, 443–454 (2003)
J.S. Boesenberg, J.S. Delaney, A model composition of the basaltic achondrite planetoid. Geochim. Cosmochim. Acta 61, 3205–3225 (1997)
A.P. Boss, Temperatures in protoplanetary disks. Annu. Rev. Earth Planet. Sci. 26, 53–80 (1998)
W.F. Bottke, D. Nesvorny, R.E. Grimm, A. Morbidelli, D.P. O’Brien, Iron meteorites as remnants of planetesimals formed in the terrestrial planet region. Nature 439, 821–824 (2006)
A. Bouvier, M. Wadhwa, The age of the solar system redefined by the oldest Pb-Pb age of a meteoritic inclusion. Nat. Geosci. 3, 637–641 (2010)
L.E. Bowman, M.N. Spilde, J.J. Papike, Automated energy dispersive spectrometer modealanalysis applied to diogenites. Meteorit. Planet. Sci. 32, 869–875 (1997)
T.H. Burbine et al., Vesta, Vestoids, and the howardite, eucrite, diogenite group: Relationships and the origin of spectral differences. Meteorit. Planet. Sci. 36, 761–781 (2001)
A.G.W. Cameron, Origin of the solar system. Annu. Rev. Astron. Astrophys. 26, 441–472 (1988)
J.E. Chambers, Planetary accretion in the inner solar system. Earth Planet. Sci. Lett. 224, 241–252 (2004)
J.E. Chambers, G.W. Wetherill, Making the terrestrial planets: N-body integrations of planetary embryos in three dimensions. Icarus 136, 304–327 (1998)
J. Connelly, Y. Amelin, A.N. Krot, M. Bizzarro, Chronology of the solar system’s oldest solids. Astophys. J. Lett. 675, 121–124 (2008)
G.J. Consolmagno, M.J. Drake, Composition and evolution of the eucrite parent body: Evidence from rare Earth elements. Geochim. Cosmochim. Acta 41, 1271–1282 (1977)
G.J. Consolmagno, D.T. Britt, The density and porosity of meteorites from the Vatican collection. Meteorit. Planet. Sci. 33, 1231–1241 (1998)
J.N. Cuzzi, A.R. Dobrovolskis, J.M. Champney, Particle-gas dynamics in the midplane of a protoplanetary nebula. Icarus 106, 102–134 (1993)
M.C. De Sanctis et al., The VIR spectrometer. Space Sci. Rev. (2011). doi:10.1007/s11214-010-9668-5
M.J. Drake, The eucrite/Vesta story. Meteorit. Planet. Sci. 36, 501–513 (2001)
G. Dreibus, H. Wanke, The bulk composition of the eucrite parent body and its bearing on planetary evolution. Z. Naturforsch. 35a, 204–216 (1980)
J.D. Drummond, R.Q. Fugate, J.C. Christou, E.K. Hege, Full adaptive optics images of asteroids Ceres and Vesta; Rotational poles and triaxial ellipsoid dimensions. Icarus 132, 80–99 (1998)
C.P. Dullemond, D. Hollenbach, I. Kamp, P. D’Alessio, Evolution of circumstellar disks around normal stars: Placing our solar system in context, in Protostars and Planets V, ed. by B. Reipurth, D. Jewitt, K. Keil (Univ. Ariz. Press, Tucson, 2007), pp. 555–572
L.T. Elkins-Tanton, E. Maroon, M.J. Krawczynski, T.L. Grove, Magma ocean solidification processes on Vesta, in 39th Lunar Planet. Sci. Conf. (2008)
C. Federico, A. Frigeri, C. Pauselli, A. Coradini, Vesta Thermal Evolution Revisited. Lunar Planet., Sci. Conf. XXXIX, #1719 (2008)
A. Fienga et al., INPOP08, a 4-D planetary ephemeris: From asteroid and time-scale computations to ESA Mars Express and Venus Express contributions. Astron. Astrophys. 507, 279–289 (2009)
A. Fujiwara, T. Kadono, A. Nakamura, Cratering experiments into curved surfaces and their implications for craters on small satellites. Icarus 105, 345–350 (1993)
M.J. Gaffey, Surface lithologic heterogeneity of asteroid 4 Vesta. Icarus 127, 130–157 (1997)
A. Ghosh, H.Y.J. McSween, A thermal model for the differentiation of asteroid 4 Vesta, based on radiogenic heating. Icarus 134, 187–206 (1998)
R.C. Greenwood, I.A. Franchi, A. Jambon, P.C. Buchanan, Widespread magma oceans on asteroidal bodies in the early solar system. Nature 435, 916–918 (2005)
G. Gupta, S. Sahijpal, Differentiation of Vesta and the parent bodies of other achondrites. J. Geophys. Res. 115 (2010). doi:10.1029/2009JE003525
K.E. Hainsch, E.A. Lada, C.J. Lada, Disk frequencies and lifetimes in young clusters. Astrophys. J. 553, L153–L156 (2001)
A.N. Halliday, T. Kleine, Meteorites and the timing, mechanisms, and conditions of terrestrial planet accretion and early differentiation, in Meteorites and the Early Solar System II, ed. by D.S. Lauretta, H.Y. McSween (Univ. Ariz. Press, Tucson, 2006), pp. 775–801
A.N. Halliday, D.-C. Lee, Tungsten isotopes and the early development of the Earth and Moon. Geochim. Cosmochim. Acta 63, 4157–4179 (1999)
A.W. Harris, B.D. Warner, P. Praves, Asteroid Lightcurve Derived Data. NASA Planetary Data System (2006)
L. Hartmann, Accretion Processes in Star Formation, Cambridge Astrophysics Series, vol. 32 (Cambridge Univ. Press, Cambridge, 2000), 239 pp.
W.K. Hartmann, Planet formation: Mechanism of early growth. Icarus 33, 50–61 (1978)
R.H. Hewins, H.E. Newsom, Igneous activity in the early solar system, in Meteorites and the Early Solar System, ed. by J.F. Kerridge, M.S. Matthews (Univ. Ariz. Press, Tucson, 1988), pp. 73–101
K.A. Holsapple, The scaling of impact processes in planetary sciences. Annu. Rev. Earth Planet. Sci. 21, 333–373 (1993)
Y. Ikeda, H. Takeda, A model for the origin of basaltic achondrites based on the Ysmsyo 7308 howardite. J. Geophys. Res. Suppl. 90, C649–C663 (1985)
A. Johansen, J.S. Oishi, M.-M.M. Low, H. Klahr, T. Henning, A. Youdin, Rapid planetesimal formation in turbulent circumstellar disks. Nature 448, 1022–1025 (2007)
J.H. Jones, The composition of the mantle of the eucrite parent body and the origin of eucrites. Geochim. Cosmochim. Acta 48, 641–648 (1984)
JPL Small-body Data Browser, 4 Vesta: Jet Propulsion Laboratory, Pasadena, CA, 2003, http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4
M. Jutzi, E. Asphaug, Mega-ejecta on asteroid Vesta. Geophys. Res. Lett. 38 (2011). doi:10.1029/2010GL045517
Y.N. Kattoum, A.J. Dombard, Calculating the topography of a differentiated Vesta. Geophys. Res. Lett. 36 (2009). doi:10.1029/2009GL041155
K. Keil, Geological history of asteroid 4 Vesta: The “smallest terrestrial planet”, in Asteroids III, ed. by J.W.F. Bottke, A. Cellino, P. Paolicchi, R.P. Binzel (Univ. Ariz. Press, Tucson, 2002), pp. 573–584
T. Kleine et al., Hf-W chronometry and the accretion and early evolution of asteroids and terrestrial planets. Geochim. Cosmochim. Acta 73, 5150–5188 (2009)
E. Kokubo, S. Ida, Oligarchic growth of protoplanets. Icarus 131, 171–178 (1998)
A.S. Konopliv et al., A global solution for the gravity field, rotation, landmarks, and ephemeris of Eros. Icarus 166, 289–299 (2002)
A.S. Konopliv, C.F. Yoder, E.M. Standish, D.-N. Yuan, W.L. Sjogren, A global solution for the Mars static and seasonal gravity, Mars orientation, Phobos and Deimos masses, and Mars ephemeris. Icarus 182, 23–50 (2006)
A.S. Konopliv et al., Mars high resolution gravity fields from MRO, Mars seasonal gravity, and other dynamical parameters. Icarus 111 (2011a). doi:10.1016/j.icarus.2010.10.004
A.S. Konopliv, S. Asmar, B.G. Bills, D.E. Smith, M.T. Zuber, Gravity investigation. Space Sci. Rev. (2011b). doi:10.1007/s11214-011-9794-8
M. Kuzmanoski, G. Apostollovska, B. Novaković, The mass of (4) Vesta derived from its largest gravitational effects. Astron. J. 140, 880–886 (2010)
W.A. Lawson, E.D. Feigelson, D.P. Huenemoerder, An improved H-R diagram for Chamaeleon I pre-main sequence stars. Mon. Not. R. Astron. Soc. 280, 335–354 (1996)
Z.M. Leinhardt, D.C. Richardson, T. Quinn, Direct, N-body simulations of rubble pile collisions. Icarus 146, 133–151 (2000)
J.S. Lewis, Physics and Chemistry of the Solar System (Academic Press, San Diego, 2004), 670 pp.
J.J. Lissauer, Planet formation. Annu. Rev. Astron. Astrophys. 31, 129–174 (1993)
J. Longhi, V. Pan, Phase equilibia constraints on the howardite-eucrite-diogenite association, in Proc. 18th Lunar Planet. Sci. Conf. (1988), pp. 459–470
G.W. Lugmair, A. Shukolyukov, Early solar system time scales according to 53Mn-53Cr systematics. Geochim. Cosmochim. Acta 62, 2863–2886 (1998)
G.W. Lugmair, A. Shukolyukov, Early solar system events and timescales. Meteorit. Planet. Sci. 36, 1017–1026 (2001)
J.I. Lunine, Processing of material in the solar nebula, in From Stardust to Planetisemals, ed. by Y.J. Pendleton, A.G.G.M. Tielens. ASP Conference Series, vol. 122, pp. 271–279 (1997)
J. Marshall, J.N. Cuzzi, Electrostatic enhancement of coagulation in protoplanetary nebulae, in XXXII Lunar Planet. Sci. Conf. (2001), p. 1262
D.W.J. McCarthy, J.D. Freeman, J.D. Drummond, High resolution images of Vesta at 1.65 μm. Icarus 108, 285–297 (1994)
M.U. McCaughrean, C.R. O’Dell, Direct imaging of circumstellar disks in the Orion nebula. Astron. J. 111, 1977–1987 (1996)
T.B. McCord, J.B. Adams, T.V. Johnson, Asteroid Vesta: Spectral reflectivity and compositional implications. Science 168, 1445–1447 (1970)
H.Y. McSween, A. Ghosh, R.E. Grimm, L. Wilson, E.D. Young, Thermal evolution models of asteroids, in Asteroids III, ed. by J.W.F. Bottke, A. Cellino, P. Paolicchi, R.P. Binzel (Univ. Ariz. Press, Tucson, 2003), pp. 559–571
H.Y.J. McSween, D.W. Mittlefehldt, A.W. Beck, R.G. Mayne, T.J. McCoy, HED meteorites and their relationship to the geology of Vesta and the Dawn Mission. Space Sci. Rev. (2011)
G. Michalak, Determination of asteroid masses I. (1) Ceres, (2) Pallas and (4) Vesta. Astron. Astrophys. 360, 363–374 (2000)
R.L. Millis, J.L. Elliot, Direct determination of asteroid diameters from occultation observations, in Asteroids, ed. by T. Gehrels (Univ. Ariz. Press, Tucson, 1979), pp. 98–118
D.W. Mittlefehldt, The genesis of diogenites and HED parent body petrogenesis. Geochim. Cosmochim. Acta 58, 1537–1552 (1994)
D.W. Mittlefehldt, T.J. McCoy, C.A. Goodrich, A. Kracher, Non-chondritic meteorites from asteroidal bodies, in Planetary Materials, ed. by J.J. Papike. Rev. Mineral., vol. 36 (Mineral. Soc. Am., Chantilly, 1998), pp. 4-1–4-195
H. Miyamoto, H. Takeda, Evidence for excavation of deep crustal material of a Vesta-like body from Ca compositional gradients in pyroxene. Earth Planet. Sci. Lett. 122, 343–349 (1994)
H. Miyamoto, T. Mikouchi, K. Kaneda, Thermal history of the Ibitira noncumulate eucrite as inferred from pyroxene exsolution lamellae: Evidence for reheating and rapid cooling. Meteorit. Planet. Sci. 36, 231–237 (2001)
H.E. Newsom, Molybdenum in eucrites: Evidence for a metal core in the eucrite parent body, in Proc. 15 Lunar Planet. Sci. Conf. (1985), pp. C613–C617
D.P. O’Brien, A. Morbidelli, W.F. Bottke, The primordial excitation and clearing of the asteroid belt—Revisited. Icarus 191, 434–452 (2007)
C.M. Pieters et al., Asteroid-meteorite links: The Vesta conundrum(s), in Asteroids, Comets, Meteors, ed. by C.M. Pieters et al. (Int. Astron. Un., Paris, 2005). doi:10.1017/S1743921305006794
E.V. Pitjeva, High-precision ephemerides of planets—EPM and determination of some astronomical constants. Sol. Syst. Res. 39, 176–186 (2005)
T.H. Prettyman et al., Dawn’s gamma ray and neutron detector (GRAND). Space Sci. Rev. (2011)
C.A. Raymond, T. Roatsch, F. Preusker, D.E. Smith, M.T. Zuber, Topography investigation. Space Sci. Rev. (2011)
K. Righter, M.J. Drake, Core formation in Earth’s Moon, Mars, and Vesta. Icarus 124, 513–529 (1996)
K. Righter, M.J. Drake, A magma ocean on Vesta: Core formation and petrogenesis of eucrites and diogenites. Meteorit. Planet. Sci. 32, 929–944 (1997)
C.T. Russell, C.A. Raymond, The Dawn Discovery mission to Vesta and Ceres. Space Sci. Rev. (2011)
C.T. Russell et al., Dawn mission to Vesta and Ceres: Symbiosis between terrestrial observations and robotic exploration. Earth Moon, Planets 101, 65–91 (2007)
A. Ruzicka, G.A. Snyder, L.A. Taylor, Vesta as the howardite, eucrite and diogenite parent body: Implications for the size of the coe and for large-scale differentiation. Meteorit. Planet. Sci. 32, 825–840 (1997)
M. Schiller, J.A. Baker, M. Bizzarro, J. Creech, A.J. Irving, Timing and Mechanisms of the Evolution of the Magma Ocean on the HED Parent Body (Meteoritical Soc., New York, 2010)
E.R.D. Scott, Chondrites and the protoplanetary disk. Annu. Rev. Earth Planet. Sci. 35, 577–620 (2007)
E.R.D. Scott, R.C. Greenwood, I.A. Franchi, I.S. Sanders, Oxygen isotopic constraints on the origin and parent bodies of eucrites, diogenites, and howardites. Geochim. Cosmochim. Acta 73, 5835–5853 (2009)
A. Shukolyukov, G.W. Langmuir, Chronology of asteroid accretion and differentiation, in Asteroids III, ed. by J.W.F. Bottke, A. Cellino, P. Paolicchi, R.P. Binzel (Univ. Ariz. Press, Tucson, 2002), pp. 687–695
H. Sierks, et al., The dawn framing camera. Space Sci. Rev. (2011)
E.M. Standish, Suggested GM values for Ceres, Pallas, and Vesta. IOM 312.F-01-006, Jet Propulsion Laboratory, Pasadena, 2001
E. Stolper, Petrogenesis of eucrite, howardite and diogenite meteorites. Nature 258, 220–222 (1975)
E.M. Stolper, Experimental petrology of eucrite meteorites. Geochim. Cosmochim. Acta 41, 587–611 (1977)
S.E. Strom, S. Edwards, M.F. Skrutskie, Evolutionary time scales for circumstellar disks associated with intermediate and solar-type stars, in Protostars and Planets III, ed. by E.H. Levy, J.I. Lunine (Univ. Ariz. Press, Tucson, 1993), pp. 837–866
H. Takeda, A layered-crust model of a howardite parent body. Icarus 40, 455–470 (1997)
H. Takeda, H. Mori, J.S. Delaney, M. Prinz, G.E. Harlow, T. Ishii, Mineralogical comparison of Antarctic and non-Antarctic HED (howardites-eucrites-diogenites) achondrites. Mem. Nat. Inst. Polar Res. 30, 181–205 (1983) (Spec. Issue)
P.C. Thomas, R.P. Binzel, M.J. Gaffey, B.H. Zellner, A.D. Storrs, E. Wells, Vesta: Spin pole, size, and shape from HST images. Icarus 128, 88–94 (1997a)
P.C. Thomas, R.P. Binzel, M.J. Gaffey, A.D. Storrs, E.N. Wells, B.H. Zellner, Impact excavation on asteroid 4 Vesta: Hubble Space Telescope results. Science 277, 1492–1495 (1997b)
M. Wadhwa, S.S. Russell, Timescales of accretion and differentiation in the early solar system: The meteoritic evidence, in Protostars and Planets IV, ed. by V. Mannings, A.P. Boss, S.S. Russell (Univ. Ariz. Press, Tucson, 2000), pp. 995–1018
P.H. Warren, The magma ocean concept and lunar evolution. Annu. Rev. Earth Planet. Sci. 13, 201–240 (1985)
P.H. Warren, G.W. Kallemeyn, H. Huber, F. Ulf-Møller, W. Choe, Geochim. Cosmochim. Acta 73, 5918 (2009)
S.J. Weidenschilling, Dust to planetesimals. Icarus 44, 172–189 (1980)
S.J. Weidenschilling, J.N. Cuzzi, Formation of planetesimals in the solar nebula, in Protostars and Planets III, ed. by E.H. Levy, J.I. Lunine (Univ. Ariz. Press, Tucson, 1993), pp. 1031–1060
S.J. Weidenschilling, D. Spaute, D.R. Davis, F. Marzari, K. Phtsuki, Accretional evolution of a planetesimal swarm 2. The terrestrial zone. Icarus 127, 429–455 (1997)
G.W. Wetherill, Origin of the asteroid belt, in Asteroids II, ed. by R.P. Binzel, T. Gehrels, M.S. Matthews (Univ. Ariz. Press, Tucson, 1989)
G.W. Wetherill, An alternative model for the formation of the asteroids. Icarus 100, 307–325 (1992)
G.W. Wetherill, Provenance of the terrestrial planets. Geochim. Cosmochim. Acta 58, 4513–4520 (1994)
G. Wurm, J. Blum, J.E. Colwell, Aerodynamical sticking of dust aggregates. Phys. Res. E64, 46,301–46,309 (2001)
B.D. Zellner, D.J. Tholen, E.F. Tedesco, The eight-color asteroid survey: Results for 589 minor planets. Icarus 61, 355–416 (1985)
N.E.B. Zellner, S. Gibbard, I. de Pater, Near-IR imaging of asteroid 4 Vesta. Icarus 177, 190–195 (2005)
M. Zema, M.C. Domeneghetti, G.M. Molin, V. Tazzoli, Cooling rates of diogenites: A study of Fe2+−Mg ordering in orthopyroxene by single-crystal x-ray diffraction. Meteorit. Planet. Sci. 32, 855–862 (1997)
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Zuber, M.T. et al. (2011). Origin, Internal Structure and Evolution of 4 Vesta. In: Russell, C., Raymond, C. (eds) The Dawn Mission to Minor Planets 4 Vesta and 1 Ceres. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4903-4_6
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