Dawn at Vesta: Testing the Protoplanetary Paradigm
The Dawn spacecraft targeted 4 Vesta, believed to be a remnant intact protoplanet from the earliest epoch of solar system formation, based on analyses of howardite-eucrite-diogenite (HED) meteorites that indicate a differentiated parent body. Dawn observations reveal a giant basin at Vesta s south p...
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ftsmithonian:oai:repository.si.edu:10088/20554 2023-05-15T18:22:21+02:00 Dawn at Vesta: Testing the Protoplanetary Paradigm Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. de Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, Timothy J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. 2012 application/pdf http://hdl.handle.net/10088/20554 https://doi.org/10.1126/science.1219381 unknown Science Russell, C. T., Raymond, C. A., Coradini, A., McSween, H. Y., Zuber, M. T., Nathues, A., de Sanctis, M. C., Jaumann, R., Konopliv, A. S., Preusker, F., Asmar, S. W., Park, R. S., Gaskell, R., Keller, H. U., Mottola, S., Roatsch, T., Scully, J. E. C., Smith, D. E., Tricarico, P., Toplis, M. J., Christensen, U. R., Feldman, W. C., Lawrence, D. J., McCoy, Timothy J., Prettyman, T. H. et al. 2012. " Dawn at Vesta: Testing the Protoplanetary Paradigm ." Science . 336 (6082):684–686. https://doi.org/10.1126/science.1219381 0036-8075 http://hdl.handle.net/10088/20554 111464 doi:10.1126/science.1219381 Journal Article 2012 ftsmithonian https://doi.org/10.1126/science.1219381 2020-09-09T18:33:22Z The Dawn spacecraft targeted 4 Vesta, believed to be a remnant intact protoplanet from the earliest epoch of solar system formation, based on analyses of howardite-eucrite-diogenite (HED) meteorites that indicate a differentiated parent body. Dawn observations reveal a giant basin at Vesta s south pole, whose excavation was sufficient to produce Vesta-family asteroids (Vestoids) and HED meteorites. The spatially resolved mineralogy of the surface reflects the composition of the HED meteorites, confirming the formation of Vesta s crust by melting of a chondritic parent body. Vesta s mass, volume, and gravitational field are consistent with a core having an average radius of 107 to 113 kilometers, indicating sufficient internal melting to segregate iron. Dawn's results confirm predictions that Vesta differentiated and support its identification as the parent body of the HEDs. NH-Mineral Sciences NMNH Peer-reviewed Article in Journal/Newspaper South pole Unknown South Pole Science 336 6082 684 686 |
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The Dawn spacecraft targeted 4 Vesta, believed to be a remnant intact protoplanet from the earliest epoch of solar system formation, based on analyses of howardite-eucrite-diogenite (HED) meteorites that indicate a differentiated parent body. Dawn observations reveal a giant basin at Vesta s south pole, whose excavation was sufficient to produce Vesta-family asteroids (Vestoids) and HED meteorites. The spatially resolved mineralogy of the surface reflects the composition of the HED meteorites, confirming the formation of Vesta s crust by melting of a chondritic parent body. Vesta s mass, volume, and gravitational field are consistent with a core having an average radius of 107 to 113 kilometers, indicating sufficient internal melting to segregate iron. Dawn's results confirm predictions that Vesta differentiated and support its identification as the parent body of the HEDs. NH-Mineral Sciences NMNH Peer-reviewed |
format |
Article in Journal/Newspaper |
author |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. de Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, Timothy J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. |
spellingShingle |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. de Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, Timothy J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. Dawn at Vesta: Testing the Protoplanetary Paradigm |
author_facet |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. de Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, Timothy J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. |
author_sort |
Russell, C. T. |
title |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_short |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_full |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_fullStr |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_full_unstemmed |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_sort |
dawn at vesta: testing the protoplanetary paradigm |
publishDate |
2012 |
url |
http://hdl.handle.net/10088/20554 https://doi.org/10.1126/science.1219381 |
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South Pole |
geographic_facet |
South Pole |
genre |
South pole |
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South pole |
op_relation |
Science Russell, C. T., Raymond, C. A., Coradini, A., McSween, H. Y., Zuber, M. T., Nathues, A., de Sanctis, M. C., Jaumann, R., Konopliv, A. S., Preusker, F., Asmar, S. W., Park, R. S., Gaskell, R., Keller, H. U., Mottola, S., Roatsch, T., Scully, J. E. C., Smith, D. E., Tricarico, P., Toplis, M. J., Christensen, U. R., Feldman, W. C., Lawrence, D. J., McCoy, Timothy J., Prettyman, T. H. et al. 2012. " Dawn at Vesta: Testing the Protoplanetary Paradigm ." Science . 336 (6082):684–686. https://doi.org/10.1126/science.1219381 0036-8075 http://hdl.handle.net/10088/20554 111464 doi:10.1126/science.1219381 |
op_doi |
https://doi.org/10.1126/science.1219381 |
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Science |
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336 |
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6082 |
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684 |
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686 |
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