Color and albedo heterogeneity of Vesta from Dawn

Vishnu Reddy; Andreas Nathues; Lucille Le Corre; Holger Sierks; Jian Yang Li; Robert Gaskell; Timothy McCoy; Andrew W. Beck; Stefan E. Schröder; Carle M. Pieters; Kris J. Becker; Bonnie J. Buratti; Brett Denevi; David T. Blewett; Ulrich Christensen; Michael J. Gaffey; Pablo Gutierrez-Marques; Michael Hicks; Horst Uwe Keller; Thorsten Maue; Stefano Mottola; Lucy A. McFadden; Harry Y. McSween; David Mittlefehldt; David P. O'Brien; Carol Raymond; Christopher Russell

doi:10.1126/science.1219088

Color and albedo heterogeneity of Vesta from Dawn

Vishnu Reddy, Andreas Nathues, Lucille Le Corre, Holger Sierks, Jian Yang Li, Robert Gaskell, Timothy McCoy, Andrew W. Beck, Stefan E. Schröder, Carle M. Pieters, Kris J. Becker, Bonnie J. Buratti, Brett Denevi, David T. Blewett, Ulrich Christensen, Michael J. Gaffey, Pablo Gutierrez-Marques, Michael Hicks, Horst Uwe Keller, Thorsten MaueStefano Mottola, Lucy A. McFadden, Harry Y. McSween, David Mittlefehldt, David P. O'Brien, Carol Raymond, Christopher Russell

Research output: Contribution to journal › Article › peer-review

160 Scopus citations

Abstract

Multispectral images (0.44 to 0.98 mm) of asteroid (4) Vesta obtained by the Dawn Framing Cameras reveal global color variations that uncover and help understand the north-south hemispherical dichotomy. The signature of deep lithologies excavated during the formation of the Rheasilvia basin on the south pole has been preserved on the surface. Color variations (band depth, spectral slope, and eucrite-diogenite abundance) clearly correlate with distinct compositional units. Vesta displays the greatest variation of geometric albedo (0.10 to 0.67) of any asteroid yet observed. Four distinct color units are recognized that chronicle processes - including impact excavation, mass wasting, and space weathering - that shaped the asteroid's surface. Vesta's color and photometric diversity are indicative of its status as a preserved, differentiated protoplanet.

Original language	English (US)
Pages (from-to)	700-704
Number of pages	5
Journal	Science
Volume	336
Issue number	6082
DOIs	https://doi.org/10.1126/science.1219088
State	Published - May 11 2012
Externally published	Yes

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Reddy, V., Nathues, A., Corre, L. L., Sierks, H., Li, J. Y., Gaskell, R., McCoy, T., Beck, A. W., Schröder, S. E., Pieters, C. M., Becker, K. J., Buratti, B. J., Denevi, B., Blewett, D. T., Christensen, U., Gaffey, M. J., Gutierrez-Marques, P., Hicks, M., Keller, H. U., ... Russell, C. (2012). Color and albedo heterogeneity of Vesta from Dawn. Science, 336(6082), 700-704. https://doi.org/10.1126/science.1219088

Reddy, V, Nathues, A, Corre, LL, Sierks, H, Li, JY, Gaskell, R, McCoy, T, Beck, AW, Schröder, SE, Pieters, CM, Becker, KJ, Buratti, BJ, Denevi, B, Blewett, DT, Christensen, U, Gaffey, MJ, Gutierrez-Marques, P, Hicks, M, Keller, HU, Maue, T, Mottola, S, McFadden, LA, McSween, HY, Mittlefehldt, D, O'Brien, DP, Raymond, C & Russell, C 2012, 'Color and albedo heterogeneity of Vesta from Dawn', Science, vol. 336, no. 6082, pp. 700-704. https://doi.org/10.1126/science.1219088

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title = "Color and albedo heterogeneity of Vesta from Dawn",

abstract = "Multispectral images (0.44 to 0.98 mm) of asteroid (4) Vesta obtained by the Dawn Framing Cameras reveal global color variations that uncover and help understand the north-south hemispherical dichotomy. The signature of deep lithologies excavated during the formation of the Rheasilvia basin on the south pole has been preserved on the surface. Color variations (band depth, spectral slope, and eucrite-diogenite abundance) clearly correlate with distinct compositional units. Vesta displays the greatest variation of geometric albedo (0.10 to 0.67) of any asteroid yet observed. Four distinct color units are recognized that chronicle processes - including impact excavation, mass wasting, and space weathering - that shaped the asteroid's surface. Vesta's color and photometric diversity are indicative of its status as a preserved, differentiated protoplanet.",

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doi = "10.1126/science.1219088",

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AU - Nathues, Andreas

AU - Corre, Lucille Le

AU - Sierks, Holger

AU - Li, Jian Yang

AU - Gaskell, Robert

AU - McCoy, Timothy

AU - Beck, Andrew W.

AU - Schröder, Stefan E.

AU - Pieters, Carle M.

AU - Becker, Kris J.

AU - Buratti, Bonnie J.

AU - Denevi, Brett

AU - Blewett, David T.

AU - Christensen, Ulrich

AU - Gaffey, Michael J.

AU - Gutierrez-Marques, Pablo

AU - Hicks, Michael

AU - Keller, Horst Uwe

AU - Maue, Thorsten

AU - Mottola, Stefano

AU - McFadden, Lucy A.

AU - McSween, Harry Y.

AU - Mittlefehldt, David

AU - O'Brien, David P.

AU - Raymond, Carol

AU - Russell, Christopher

PY - 2012/5/11

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Color and albedo heterogeneity of Vesta from Dawn

Abstract

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