Variations in color and reflectance on the surface of asteroid (101955) Bennu-Reference-Cited by-同舟云学术

Variations in color and reflectance on the surface of asteroid (101955) Bennu

Published:2020-11-06 Issue:6517 Volume:370 Page:
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

DellaGiustina D. N.¹²^ORCID,Burke K. N.¹^ORCID,Walsh K. J.³^ORCID,Smith P. H.¹,Golish D. R.¹^ORCID,Bierhaus E. B.⁴^ORCID,Ballouz R.-L.¹^ORCID,Becker T. L.¹^ORCID,Campins H.⁵^ORCID,Tatsumi E.⁶⁷^ORCID,Yumoto K.⁷^ORCID,Sugita S.⁷^ORCID,Deshapriya J. D. Prasanna⁸^ORCID,Cloutis E. A.⁹^ORCID,Clark B. E.¹⁰^ORCID,Hendrix A. R.¹¹^ORCID,Sen A.¹⁰^ORCID,Al Asad M. M.¹²^ORCID,Daly M. G.¹³^ORCID,Applin D. M.⁹,Avdellidou C.¹⁴,Barucci M. A.⁸^ORCID,Becker K. J.¹^ORCID,Bennett C. A.¹^ORCID,Bottke W. F.³^ORCID,Brodbeck J. I.¹,Connolly H. C.¹⁵^ORCID,Delbo M.¹⁴^ORCID,de Leon J.⁶^ORCID,Drouet d’Aubigny C. Y.¹^ORCID,Edmundson K. L.¹^ORCID,Fornasier S.⁸¹⁶^ORCID,Hamilton V. E.³^ORCID,Hasselmann P. H.⁸^ORCID,Hergenrother C. W.¹^ORCID,Howell E. S.¹^ORCID,Jawin E. R.¹⁷^ORCID,Kaplan H. H.¹⁸^ORCID,Le Corre L.¹¹^ORCID,Lim L. F.¹⁷^ORCID,Li J. Y.¹¹^ORCID,Michel P.¹⁴^ORCID,Molaro J. L.¹¹^ORCID,Nolan M. C.¹^ORCID,Nolau J.⁴,Pajola M.¹⁹^ORCID,Parkinson A.⁹^ORCID,Popescu M.⁶²⁰^ORCID,Porter N. A.¹^ORCID,Rizk B.¹^ORCID,Rizos J. L.⁶^ORCID,Ryan A. J.¹^ORCID,Rozitis B.²¹^ORCID,Shultz N. K.¹,Simon A. A.¹⁸^ORCID,Trang D.²²^ORCID,Van Auken R. B.¹^ORCID,Wolner C. W. V.¹,Lauretta D. S.¹^ORCID

Affiliation:

1. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.

2. Department of Geosciences, University of Arizona, Tucson, AZ, USA.

3. Southwest Research Institute, Boulder, CO, USA.

4. Lockheed Martin Space, Littleton, CO, USA.

5. Department of Physics, University of Central Florida, Orlando, FL, USA.

6. Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, Tenerife, Spain.

7. Department of Earth and Planetary Science, University of Tokyo, Tokyo, 113-0033, Japan.

8. LESIA (Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique), Observatoire de Paris, Université PSL (Paris Sciences & Lettres), CNRS (Centre National de la Recherche Scientifique), Université de Paris, Sorbonne Université, 92195 Meudon, France.

9. Department of Geography, University of Winnipeg, Winnipeg, MB R3B 2E9, Canada.

10. Department of Physics and Astronomy, Ithaca College, Ithaca, NY, USA.

11. Planetary Science Institute, Tucson, AZ, USA.

12. Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada.

13. The Centre for Research in Earth and Space Science, York University, Toronto, ON, Canada.

14. Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, France.

15. Department of Geology, Rowan University, Glassboro, NJ, USA.

16. Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris CEDEX 05, France.

17. Smithsonian Institution National Museum of Natural History, Washington, DC, USA.

18. NASA Goddard Space Flight Center, Greenbelt, MD, USA.

19. Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Padova, Padua, Italy.

20. Astronomical Institute of the Romanian Academy, Bucharest, Romania.

21. The School of Physical Sciences, The Open University, Milton Keynes, UK.

22. University of Hawai‘i at Mānoa, Hawai‘i Institute of Geophysics and Planetology, Honolulu, HI, USA.

Abstract

The complex history of Bennu's surface The near-Earth asteroid (101955) Bennu is a carbon-rich body with a rubble pile structure, formed from debris ejected by an impact on a larger parent asteroid. The Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft is designed to collect a sample of Bennu's surface and return it to Earth. After arriving at Bennu, OSIRIS-REx performed a detailed survey of the asteroid and reconnaissance of potential sites for sample collection. Three papers present results from those mission phases. DellaGiustina et al. mapped the optical color and albedo of Bennu's surface and established how they relate to boulders and impact craters, finding complex evolution caused by space weathering processes. Simon et al. analyzed near-infrared spectra, finding evidence for organic and carbonate materials that are widely distributed across the surface but are most concentrated on individual boulders. Kaplan et al. examined more detailed data collected on the primary sample site, called Nightingale. They identified bright veins with a distinct infrared spectrum in some boulders, which they interpreted as being carbonates formed by aqueous alteration on the parent asteroid. Together, these results constrain Bennu's evolution and provide context for the sample collected in October 2020. Science , this issue p. eabc3660 , p. eabc3522 , p. eabc3557

Funder

NASA New Frontiers Program

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference89 articles.

1. OSIRIS-REx: Sample Return from Asteroid (101955) Bennu

2. Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.4μm and meteorite analogs

3. In search of the source of asteroid (101955) Bennu: Applications of the stochastic YORP model

4. Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-REx imaging and thermal analysis

5. The unexpected surface of asteroid (101955) Bennu

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