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Shape of (101955) Bennu indicative of a rubble pile with internal stiffness

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Shape of (101955) Bennu indicative of a rubble pile with internal stiffness. / The OSIRIS-REx Team; Barnouin, O; Daly, M; Palmer, E; Gaskell, R; Weirich, J; Johnson, C; Al Asad, M; Roberts, J; Perry, M; Susorney, Hannah; Daly, R; Bierhaus, E; Seabrook, J; Espiritu, R; Nair, A; Nguyen, L; Neumann, G; Ernst, C; Boynton, W; Nolan, M; Adam, C; Moreau, M; Rizk, B; Drouet D’Aubigny, C; Jawin, E; Walsh, K; Michel, P; Schwartz, S; Ballouz, R-L; Mazarico, E; Scheeres, D; McMahon, J; Bottke, W; Sugita, S; Hirata, N; Watanabe, S; Burke, K; DellaGiustina, D; Bennett, C; Bennett, C; Lauretta, D.

In: Nature Geoscience, Vol. 12, No. 4, 04.2019, p. 247-252.

Research output: Contribution to journalArticle

Harvard

The OSIRIS-REx Team, Barnouin, O, Daly, M, Palmer, E, Gaskell, R, Weirich, J, Johnson, C, Al Asad, M, Roberts, J, Perry, M, Susorney, H, Daly, R, Bierhaus, E, Seabrook, J, Espiritu, R, Nair, A, Nguyen, L, Neumann, G, Ernst, C, Boynton, W, Nolan, M, Adam, C, Moreau, M, Rizk, B, Drouet D’Aubigny, C, Jawin, E, Walsh, K, Michel, P, Schwartz, S, Ballouz, R-L, Mazarico, E, Scheeres, D, McMahon, J, Bottke, W, Sugita, S, Hirata, N, Watanabe, S, Burke, K, DellaGiustina, D, Bennett, C, Bennett, C & Lauretta, D 2019, 'Shape of (101955) Bennu indicative of a rubble pile with internal stiffness', Nature Geoscience, vol. 12, no. 4, pp. 247-252. https://doi.org/10.1038/s41561-019-0330-x

APA

The OSIRIS-REx Team, Barnouin, O., Daly, M., Palmer, E., Gaskell, R., Weirich, J., ... Lauretta, D. (2019). Shape of (101955) Bennu indicative of a rubble pile with internal stiffness. Nature Geoscience, 12(4), 247-252. https://doi.org/10.1038/s41561-019-0330-x

Vancouver

The OSIRIS-REx Team, Barnouin O, Daly M, Palmer E, Gaskell R, Weirich J et al. Shape of (101955) Bennu indicative of a rubble pile with internal stiffness. Nature Geoscience. 2019 Apr;12(4):247-252. https://doi.org/10.1038/s41561-019-0330-x

Author

The OSIRIS-REx Team ; Barnouin, O ; Daly, M ; Palmer, E ; Gaskell, R ; Weirich, J ; Johnson, C ; Al Asad, M ; Roberts, J ; Perry, M ; Susorney, Hannah ; Daly, R ; Bierhaus, E ; Seabrook, J ; Espiritu, R ; Nair, A ; Nguyen, L ; Neumann, G ; Ernst, C ; Boynton, W ; Nolan, M ; Adam, C ; Moreau, M ; Rizk, B ; Drouet D’Aubigny, C ; Jawin, E ; Walsh, K ; Michel, P ; Schwartz, S ; Ballouz, R-L ; Mazarico, E ; Scheeres, D ; McMahon, J ; Bottke, W ; Sugita, S ; Hirata, N ; Watanabe, S ; Burke, K ; DellaGiustina, D ; Bennett, C ; Bennett, C ; Lauretta, D. / Shape of (101955) Bennu indicative of a rubble pile with internal stiffness. In: Nature Geoscience. 2019 ; Vol. 12, No. 4. pp. 247-252.

Bibtex

@article{4f4378114cba4de48affb16e23297f45,
title = "Shape of (101955) Bennu indicative of a rubble pile with internal stiffness",
abstract = "The shapes of asteroids reflect interplay between their interior properties and the processes responsible for their formation and evolution as they journey through the Solar System. Prior to the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) mission, Earth-based radar imaging gave an overview of (101955) Bennu’s shape. Here we construct a high-resolution shape model from OSIRIS-REx images. We find that Bennu’s top-like shape, considerable macroporosity and prominent surface boulders suggest that it is a rubble pile. High-standing, north–south ridges that extend from pole to pole, many long grooves and surface mass wasting indicate some low levels of internal friction and/or cohesion. Our shape model indicates that, similar to other top-shaped asteroids, Bennu formed by reaccumulation and underwent past periods of fast spin, which led to its current shape. Today, Bennu might follow a different evolutionary pathway, with an interior stiffness that permits surface cracking and mass wasting.",
author = "{The OSIRIS-REx Team} and O Barnouin and M Daly and E Palmer and R Gaskell and J Weirich and C Johnson and {Al Asad}, M and J Roberts and M Perry and Hannah Susorney and R Daly and E Bierhaus and J Seabrook and R Espiritu and A Nair and L Nguyen and G Neumann and C Ernst and W Boynton and M Nolan and C Adam and M Moreau and B Rizk and {Drouet D’Aubigny}, C and E Jawin and K Walsh and P Michel and S Schwartz and R-L Ballouz and E Mazarico and D Scheeres and J McMahon and W Bottke and S Sugita and N Hirata and S Watanabe and K Burke and D DellaGiustina and C Bennett and C Bennett and D Lauretta",
year = "2019",
month = "4",
doi = "10.1038/s41561-019-0330-x",
language = "English",
volume = "12",
pages = "247--252",
journal = "Nature Geoscience",
issn = "1752-0894",
publisher = "Springer Nature",
number = "4",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Shape of (101955) Bennu indicative of a rubble pile with internal stiffness

AU - The OSIRIS-REx Team

AU - Barnouin, O

AU - Daly, M

AU - Palmer, E

AU - Gaskell, R

AU - Weirich, J

AU - Johnson, C

AU - Al Asad, M

AU - Roberts, J

AU - Perry, M

AU - Susorney, Hannah

AU - Daly, R

AU - Bierhaus, E

AU - Seabrook, J

AU - Espiritu, R

AU - Nair, A

AU - Nguyen, L

AU - Neumann, G

AU - Ernst, C

AU - Boynton, W

AU - Nolan, M

AU - Adam, C

AU - Moreau, M

AU - Rizk, B

AU - Drouet D’Aubigny, C

AU - Jawin, E

AU - Walsh, K

AU - Michel, P

AU - Schwartz, S

AU - Ballouz, R-L

AU - Mazarico, E

AU - Scheeres, D

AU - McMahon, J

AU - Bottke, W

AU - Sugita, S

AU - Hirata, N

AU - Watanabe, S

AU - Burke, K

AU - DellaGiustina, D

AU - Bennett, C

AU - Bennett, C

AU - Lauretta, D

PY - 2019/4

Y1 - 2019/4

N2 - The shapes of asteroids reflect interplay between their interior properties and the processes responsible for their formation and evolution as they journey through the Solar System. Prior to the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) mission, Earth-based radar imaging gave an overview of (101955) Bennu’s shape. Here we construct a high-resolution shape model from OSIRIS-REx images. We find that Bennu’s top-like shape, considerable macroporosity and prominent surface boulders suggest that it is a rubble pile. High-standing, north–south ridges that extend from pole to pole, many long grooves and surface mass wasting indicate some low levels of internal friction and/or cohesion. Our shape model indicates that, similar to other top-shaped asteroids, Bennu formed by reaccumulation and underwent past periods of fast spin, which led to its current shape. Today, Bennu might follow a different evolutionary pathway, with an interior stiffness that permits surface cracking and mass wasting.

AB - The shapes of asteroids reflect interplay between their interior properties and the processes responsible for their formation and evolution as they journey through the Solar System. Prior to the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) mission, Earth-based radar imaging gave an overview of (101955) Bennu’s shape. Here we construct a high-resolution shape model from OSIRIS-REx images. We find that Bennu’s top-like shape, considerable macroporosity and prominent surface boulders suggest that it is a rubble pile. High-standing, north–south ridges that extend from pole to pole, many long grooves and surface mass wasting indicate some low levels of internal friction and/or cohesion. Our shape model indicates that, similar to other top-shaped asteroids, Bennu formed by reaccumulation and underwent past periods of fast spin, which led to its current shape. Today, Bennu might follow a different evolutionary pathway, with an interior stiffness that permits surface cracking and mass wasting.

U2 - 10.1038/s41561-019-0330-x

DO - 10.1038/s41561-019-0330-x

M3 - Article

VL - 12

SP - 247

EP - 252

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

IS - 4

ER -