Carle M Pieters

Publications (5)38.42 Total impact

• Source

  Available from: Michael J. Gaffey

  Article: 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, [......], 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
  [show abstract] [hide abstract]
  ABSTRACT: Multispectral images (0.44 to 0.98 μm) 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.
  Science 05/2012; 336(6082):700-704. · 31.20 Impact Factor
• Article: Surface Composition of Vesta: Issues and Integrated Approach

  Carle M. Pieters, Lucy A. McFadden, Thomas Prettyman, M. Cristina De Sanctis, Thomas B. McCord, Takahiro Hiroi, Rachel Klima, Jian-Yang Li, Ralf Jaumann
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  ABSTRACT: The instruments on the Dawn spacecraft are exceptionally well suited to characterize and map the surface composition of Vesta in an integrated manner. These include a framing camera with multispectral capabilities, a high spectral resolution near-infrared imaging spectrometer, and a gamma-ray and neutron spectrometer. Three examples of issues addressed at Vesta are: (1) What is the composition of Vesta’s interior and differentiation state as exposed by the Great South Crater? (2) How has space weathering affected Vesta, both globally and at a local scale? and (3) Are volatiles or hydrated material present on Vesta’s surface? We predict that Dawn finds many surprises, such as an olivine-bearing mantle exposed near the south-pole, a weakly or un-weathered surface that has been relatively recently resurfaced, and a very thin layer of surficial volatiles derived from interaction with the solar wind. KeywordsVesta composition–Dawn mission–Great South Crater–Space weathering–Volatiles on asteroids
  Space Science Reviews 04/2012; 163(1):117-139. · 3.61 Impact Factor
• Source

  Available from: Jian-Yang Li

  Article: Surface Composition of Vesta: Issues and Integrated Approach

  Carle M. Pieters, Lucy A. McFadden, Thomas Prettyman, Christina De Sanctis, Thomas B. McCord, Takahiro Hiroi, Rachel Klima, Jian-Yang Li, Ralf Jaumann
  [show abstract] [hide abstract]
  ABSTRACT: The instruments on the Dawn spacecraft are exceptionally well suited to characterize and map the surface composition of Vesta in an integrated manner. These include a framing camera with multispectral capabilities, a high spectral resolution near-infrared imaging spectrometer, and a gamma-ray and neutron spectrometer. Three examples of issues addressed at Vesta are: (1) What is the composition of Vesta’s interior and differentiation state as exposed by the Great South Crater? (2) How has space weathering affected Vesta, both globally and at a local scale? and (3) Are volatiles or hydrated material present on Vesta’s surface? We predict that Dawn finds many surprises, such as an olivine-bearing mantle exposed near the south-pole, a weakly or un-weathered surface that has been relatively recently resurfaced, and a very thin layer of surficial volatiles derived from interaction with the solar wind.
  Space Science Reviews 12/2011; 163(2011):117-139. · 3.61 Impact Factor
• Conference Proceeding: Mapping Vesta Equatorial Quadrangle V-8EDL: Various Craters and Giant Grooves

  Lucille Le Corre, Andreas Nathues, Vishnu Reddy, Debra Buczkowski, Brett W. Denevi, Michael Gaffey, David A. Williams, William Brent Garry, R. Aileen Yingst, Ralf Jaumann, Carle M. Pieters, Christopher T Russell, Carol A. Raymond
  AGU Fall Meeting 2011;
• Conference Proceeding: Mapping Vesta: A Geological Overview (Invited)

  Ralf Jaumann, Carle M. Pieters, Christopher T. Russell, Carol A. Raymond, R. Aileen Yingst, David A. Williams, Paul Schenk, Gerhard Neukum, Stefano Mottola, Debra Buczkowski, [......], Brett W Denevi, Thomas Roatsch, Frank Preusker, Andreas Nathues, Holger Sierks, Mark V. Sykes, Maria Cristina De sanctis, Harry Y. McSween, Horst Uwe Keller, Simone Marchi
  AGU Fall Meeting 2011;