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1826207477454077952
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Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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MIT
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| description |
Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for abundant hydrated minerals on the surface of near-Earth asteroid (101955) Bennu in the form of a near-infrared absorption near 2.7 µm and thermal infrared spectral features that are most similar to those of aqueously altered CM-type carbonaceous chondrites. We observe these spectral features across the surface of Bennu, and there is no evidence of substantial rotational variability at the spatial scales of tens to hundreds of metres observed to date. In the visible and near-infrared (0.4 to 2.4 µm) Bennu’s spectrum appears featureless and with a blue (negative) slope, confirming previous ground-based observations. Bennu may represent a class of objects that could have brought volatiles and organic chemistry to Earth. ©2019
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2024-09-23T13:50:15Z
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Article
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mit-1721.1/124501
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| institution |
Massachusetts Institute of Technology
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| language |
English
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2024-09-23T13:50:15Z
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2020
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Springer Science and Business Media LLC
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dspace
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| spelling |
mit-1721.1/1245012024-06-14T15:16:59Z Evidence for widespread hydrated minerals on asteroid (101955) Bennu Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for abundant hydrated minerals on the surface of near-Earth asteroid (101955) Bennu in the form of a near-infrared absorption near 2.7 µm and thermal infrared spectral features that are most similar to those of aqueously altered CM-type carbonaceous chondrites. We observe these spectral features across the surface of Bennu, and there is no evidence of substantial rotational variability at the spatial scales of tens to hundreds of metres observed to date. In the visible and near-infrared (0.4 to 2.4 µm) Bennu’s spectrum appears featureless and with a blue (negative) slope, confirming previous ground-based observations. Bennu may represent a class of objects that could have brought volatiles and organic chemistry to Earth. ©2019 NASA under Contract NNM10AA11C 2020-04-06T21:06:00Z 2020-04-06T21:06:00Z 2019-03 2020-04-03T17:54:59Z Article http://purl.org/eprint/type/JournalArticle 2397-3366 https://hdl.handle.net/1721.1/124501 Hamilton, V.E., et al., "Evidence for widespread hydrated minerals on asteroid (101955) Bennu." Nature astronomy 3, 4 (2019): p. 332-340 doi 10.1038/s41550-019-0722-2 ©2019 Author(s) en 10.1038/s41550-019-0722-2 Nature astronomy Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer Science and Business Media LLC PMC
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| spellingShingle |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title_full |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title_fullStr |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title_full_unstemmed |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title_short |
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
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| title_sort |
evidence for widespread hydrated minerals on asteroid 101955 bennu
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| url |
https://hdl.handle.net/1721.1/124501
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