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

Neumann G. A.; Ernst C. M.; Adam C. D.; Moreau M. C.; DAubigny C. Y. Drouet; Sugita S.; Hirata N.; Highsmith D. E.; Small J.; Vokrouhlicky D.; Bowles N. E.; Brown E.; Hanna K. L. Donaldson; Warren T.; Brunet C.; Chicoine R. A.; Desjardins S.; Gaudreau D.; Haltigin T.; Millington-Veloza S.; Rubi A.; Aponte J.; Gorius N.; Lunsford A.; Allen B.; Grindlay J.; Guevel D.; Hoak D.; Hong J.; Schrader D. L.; Bayron J.; Golubov O.; Sanchez P.; Stromberg J.; Hirabayashi M.; Hartzell C. M.; Oliver S.; Rascon M.; Harch A.; Joseph J.; Squyres S.; Richardson D.; Emery J. P.; McGraw L.; Ghent R.; Binzel R. P.; Al Asad M. M.; Johnson C. L.; Philpott L.; Susorney H. C. M.; Cloutis E. A.; Hanna R. D.; Connolly H. C. Jr.; Ciceri F.; Hildebrand A. R.; Ibrahim E. -M.; Breitenfeld L.; Glotch T.; Rogers A. D.; Clark B. E.; Ferrone S.; Thomas C. A.; Campins H.; Fernandez Y.; Chang W.; Cheuvront A.; Trang D.; Tachibana S.; Yurimoto H.; Brucato J. R.; Poggiali G.; Pajola M.; Dotto E.; Epifani E. Mazzotta; Crombie M. K.; Lantz C.; Izawa M. R. M.; de Leon J.; Licandro J.; Garcia J. L. Rizos; Clemett S.; Thomas-Keprta K.; Van wal S.; Yoshikawa M.; Bellerose J.; Bhaskaran S.; Boyles C.; Chesley S. R.; Elder C. M.; Farnocchia D.; Harbison A.; Kennedy B.; Knight A.; Martinez-Vlasoff N.; Mastrodemos N.; McElrath T.; Owen W.; Park R.; Rush B.; Swanson L.; Takahashi Y.; Velez D.; Yetter K.; Thayer C.; Adam C.; Antreasian P.; Bauman J.; Bryan C.; Carcich B.; Corvin M.; Geeraert J.; Hoffman J.; Leonard J. M.; Lessac-Chenen E.; Levine A.; McAdams J.; McCarthy L.; Nelson D.; Page B.; Pelgrift J.; Sahr E.; Stakkestad K.; Stanbridge D.; Wibben D.; Williams B.; Williams K.; Wolff P.; Hayne P.; Kubitschek D.; Barucci M. A.; Deshapriya J. D. P.; Fornasier S.; Fulchignoni M.; Hasselmann P.; Merlin F.; Praet A.; Bierhaus E. B.; Billett O.; Boggs A.; Buck B.; Carlson-Kelly S.; Cerna J.; Chaffin K.; Church E.; Coltrin M.; Daly J.; Deguzman A.; Dubisher R.; Eckart D.; Ellis D.; Falkenstern P.; Fisher A.; Fisher M. E.; Fleming P.; Fortney K.; Francis S.; Freund S.; Gonzales S.; Haas P.; Hasten A.; Hauf D.; Hilbert A.; Howell D.; Jaen F.; Jayakody N.; Jenkins M.; Johnson K.; Lefevre M.; Ma H.; Mario C.; Martin K.; May C.; McGee M.; Miller B.; Miller C.; Miller G.; Mirfakhrai A.; Muhle E.; Norman C.; Olds R.; Parish C.; Ryle M.; Schmitzer M.; Sherman P.; Skeen M.; Susak M.; Sutter B.; Tran Q.; Welch C.; Witherspoon R.; Wood J.; Zareski J.; Arvizu-Jakubicki M.; Asphaug E.; Audi E.; Ballouz R. -L.; Bandrowski R.; Becker K. J.; Becker T. L.; Bendall S.; Bennett C. A.; Bloomenthal H.; Blum D.; Boynton W. V.; Brodbeck J.; Burke K. N.; Chojnacki M.; Colpo A.; Contreras J.; Cutts J.; dAubigny C. Y. Drouet; Dean D.; DellaGiustina D. N.; Diallo B.; Drinnon D.; Drozd K.; Enos H. L.; Enos R.; Fellows C.; Ferro T.; Fisher M. R.; Fitzgibbon G.; Fitzgibbon M.; Forelli J.; Forrester T.; Galinsky I.; Garcia R.; Gardner A.; Golish D. R.; Habib N.; Hamara D.; Hammond D.; Hanley K.; Harshman K.; Hergenrother C. W.; Herzog K.; Hill D.; Hoekenga C.; Hooven S.; Howell E. S.; Huettner E.; Janakus A.; Jones J.; Kareta T. R.; Kidd J.; Kingsbury K.; Balram-Knutson S. S.; Koelbel L.; Kreiner J.; Lambert D.; Lauretta D. S.; Lewin C.; Lovelace B.; Loveridge M.; Lujan M.; Maleszewski C. K.; Malhotra R.; Marchese K.; McDonough E.; Mogk N.; Morrison V.; Morton E.; Munoz R.; Nelson J.; Nolan M. C.; Padilla J.; Pennington R.; Polit A.; Ramos N.; Reddy V.; Riehl M.; Rizk B.; Roper H. L.; Salazar S.; Schwartz S. R.; Selznick S.; Shultz N.; Smith P. H.; Stewart S.; Sutton S.; Swindle T.; Tang Y. H.; Westermann M.; Wolner C. W. V.; Worden D.; Zega T.; Zeszut Z.; Bjurstrom A.; Bloomquist L.; Dickinson C.; Keates E.; Liang J.; Nifo V.; Taylor A.; Teti F.; Caplinger M.; Bowles H.; Carter S.; Dickenshied S.; Doerres D.; Fisher T.; Hagee W.; Hill J.; Miner M.; Noss D.; Piacentine N.; Smith M.; Toland A.; Wren P.; Bernacki M.; Munoz D. Pino; Watanabe S. -i.; Sandford S. A.; Aqueche A.; Ashman B.; Barker M.; Bartels A.; Berry K.; Bos B.; Burns R.; Calloway A.; Carpenter R.; Castro N.; Cosentino R.; Donaldson J.; Dworkin J. P.; Cook J. Elsila; Emr C.; Everett D.; Fennell D.; Fleshman K.; Folta D.; Gallagher D.; Garvin J.; Getzandanner K.; Glavin D.; Hull S.; Hyde K.; Ido H.; Ingegneri A.; Jones N.; Kaotira P.; Lim L. F.; Liounis A.; Lorentson C.; Lorenz D.; Lyzhoft J.; Mazarico E. M.; Mink R.; Moore W.; Moreau M.; Mullen S.; Nagy J.; Neumann G.; Nuth J.; Poland D.; Reuter D. C.; Rhoads L.; Rieger S.; Rowlands D.; Sallitt D.; Scroggins A.; Shaw G.; Simon A. A.; Swenson J.; Vasudeva P.; Wasser M.; Zellar R.; Grossman J.; Johnston G.; Morris M.; Wendel J.; Burton A.; Keller L. P.; McNamara L.; Messenger S.; Nakamura-Messenger K.; Nguyen A.; Righter K.; Queen E.; Bellamy K.; Dill K.; Gardner S.; Giuntini M.; Key B.; Kissell J.; Patterson D.; Vaughan D.; Wright B.; Gaskell R. W.; Le Corre L.; Li J. -Y.; Molaro J. L.; Palmer E. E.; Siegler M. A.; Tricarico P.; Weirich J. R.; Zou X. -D.; Ireland T.; Tait K.; Bland P.; Anwar S.; Bojorquez-Murphy N.; Christensen P. R.; Haberle C. W.; Mehall G.; Rios K.; Franchi I.; Rozitis B.; Beddingfield C. B.; Marshall J.; Brack D. N.; French A. S.; McMahon J. W.; Scheeres D. J.; Jawin E. R.; Mccoy T. J.; Russell S.; Killgore M.; Bottke W. F.; Hamilton V. E.; Kaplan H. H.; Walsh K. J.; Bandfield J. L.; Clark B. C.; Chodas M.; Lambert M.; Masterson R. A.; Daly M. G.; Freemantle J.; Seabrook J. A.; Barnouin O. S.; Craft K.; Daly R. T.; Ernst C.; Espiritu R. C.; Holdridge M.; Jones M.; Nair A. H.; Nguyen L.; Peachey J.; Perry M. E.; Plescia J.; Roberts J. H.; Steele R.; Turner R.; Backer J.; Edmundson K.; Mapel J.; Milazzo M.; Sides S.; Manzoni C.; May B.; Delbo M.; Libourel G.; Michel P.; Ryan A.; Thuillet F.; Marty B.

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

机译：（101955）Bennu表示具有内刚度的瓦砾桩

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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.

机译：小行星的形状反映了它们的内部性质与负责它们的形成和演进的过程之间的相互作用。在Osiris-rex（起源，光谱解释，资源识别和安全regolith Explorer）之前，基于地球的雷达成像概述了（101955）Bennu形状。在这里，我们从Osiris-rex图像构造一个高分辨率形状模型。我们发现Bennu的顶部形状，相当大的宏观度和突出的表面巨石表明它是一种瓦砾堆。高位北方南部沿杆延伸到杆，许多长的凹槽和表面质量浪费表示一些低水平的内部摩擦和/或内聚力。我们的形状模型表明，类似于其他顶形的小行星，通过ReaCrumulation形成的Bennu，并且经历了过去的快速旋转时段，导致其当前的形状。如今，Bennu可能遵循不同的进化途径，内部刚度允许表面开裂和批量浪费。

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《Nature geoscience》 |2019年第4期|共9页
作者
Neumann G. A.; Ernst C. M.; Adam C. D.; Moreau M. C.; DAubigny C. Y. Drouet; Sugita S.; Hirata N.; Highsmith D. E.; Small J.; Vokrouhlicky D.; Bowles N. E.; Brown E.; Hanna K. L. Donaldson; Warren T.; Brunet C.; Chicoine R. A.; Desjardins S.; Gaudreau D.; Haltigin T.; Millington-Veloza S.; Rubi A.; Aponte J.; Gorius N.; Lunsford A.; Allen B.; Grindlay J.; Guevel D.; Hoak D.; Hong J.; Schrader D. L.; Bayron J.; Golubov O.; Sanchez P.; Stromberg J.; Hirabayashi M.; Hartzell C. M.; Oliver S.; Rascon M.; Harch A.; Joseph J.; Squyres S.; Richardson D.; Emery J. P.; McGraw L.; Ghent R.; Binzel R. P.; Al Asad M. M.; Johnson C. L.; Philpott L.; Susorney H. C. M.; Cloutis E. A.; Hanna R. D.; Connolly H. C. Jr.; Ciceri F.; Hildebrand A. R.; Ibrahim E. -M.; Breitenfeld L.; Glotch T.; Rogers A. D.; Clark B. E.; Ferrone S.; Thomas C. A.; Campins H.; Fernandez Y.; Chang W.; Cheuvront A.; Trang D.; Tachibana S.; Yurimoto H.; Brucato J. R.; Poggiali G.; Pajola M.; Dotto E.; Epifani E. Mazzotta; Crombie M. K.; Lantz C.; Izawa M. R. M.; de Leon J.; Licandro J.; Garcia J. L. Rizos; Clemett S.; Thomas-Keprta K.; Van wal S.; Yoshikawa M.; Bellerose J.; Bhaskaran S.; Boyles C.; Chesley S. R.; Elder C. M.; Farnocchia D.; Harbison A.; Kennedy B.; Knight A.; Martinez-Vlasoff N.; Mastrodemos N.; McElrath T.; Owen W.; Park R.; Rush B.; Swanson L.; Takahashi Y.; Velez D.; Yetter K.; Thayer C.; Adam C.; Antreasian P.; Bauman J.; Bryan C.; Carcich B.; Corvin M.; Geeraert J.; Hoffman J.; Leonard J. M.; Lessac-Chenen E.; Levine A.; McAdams J.; McCarthy L.; Nelson D.; Page B.; Pelgrift J.; Sahr E.; Stakkestad K.; Stanbridge D.; Wibben D.; Williams B.; Williams K.; Wolff P.; Hayne P.; Kubitschek D.; Barucci M. A.; Deshapriya J. D. P.; Fornasier S.; Fulchignoni M.; Hasselmann P.; Merlin F.; Praet A.; Bierhaus E. B.; Billett O.; Boggs A.; Buck B.; Carlson-Kelly S.; Cerna J.; Chaffin K.; Church E.; Coltrin M.; Daly J.; Deguzman A.; Dubisher R.; Eckart D.; Ellis D.; Falkenstern P.; Fisher A.; Fisher M. E.; Fleming P.; Fortney K.; Francis S.; Freund S.; Gonzales S.; Haas P.; Hasten A.; Hauf D.; Hilbert A.; Howell D.; Jaen F.; Jayakody N.; Jenkins M.; Johnson K.; Lefevre M.; Ma H.; Mario C.; Martin K.; May C.; McGee M.; Miller B.; Miller C.; Miller G.; Mirfakhrai A.; Muhle E.; Norman C.; Olds R.; Parish C.; Ryle M.; Schmitzer M.; Sherman P.; Skeen M.; Susak M.; Sutter B.; Tran Q.; Welch C.; Witherspoon R.; Wood J.; Zareski J.; Arvizu-Jakubicki M.; Asphaug E.; Audi E.; Ballouz R. -L.; Bandrowski R.; Becker K. J.; Becker T. L.; Bendall S.; Bennett C. A.; Bloomenthal H.; Blum D.; Boynton W. V.; Brodbeck J.; Burke K. N.; Chojnacki M.; Colpo A.; Contreras J.; Cutts J.; dAubigny C. Y. Drouet; Dean D.; DellaGiustina D. N.; Diallo B.; Drinnon D.; Drozd K.; Enos H. L.; Enos R.; Fellows C.; Ferro T.; Fisher M. R.; Fitzgibbon G.; Fitzgibbon M.; Forelli J.; Forrester T.; Galinsky I.; Garcia R.; Gardner A.; Golish D. R.; Habib N.; Hamara D.; Hammond D.; Hanley K.; Harshman K.; Hergenrother C. W.; Herzog K.; Hill D.; Hoekenga C.; Hooven S.; Howell E. S.; Huettner E.; Janakus A.; Jones J.; Kareta T. R.; Kidd J.; Kingsbury K.; Balram-Knutson S. S.; Koelbel L.; Kreiner J.; Lambert D.; Lauretta D. S.; Lewin C.; Lovelace B.; Loveridge M.; Lujan M.; Maleszewski C. K.; Malhotra R.; Marchese K.; McDonough E.; Mogk N.; Morrison V.; Morton E.; Munoz R.; Nelson J.; Nolan M. C.; Padilla J.; Pennington R.; Polit A.; Ramos N.; Reddy V.; Riehl M.; Rizk B.; Roper H. L.; Salazar S.; Schwartz S. R.; Selznick S.; Shultz N.; Smith P. H.; Stewart S.; Sutton S.; Swindle T.; Tang Y. H.; Westermann M.; Wolner C. W. V.; Worden D.; Zega T.; Zeszut Z.; Bjurstrom A.; Bloomquist L.; Dickinson C.; Keates E.; Liang J.; Nifo V.; Taylor A.; Teti F.; Caplinger M.; Bowles H.; Carter S.; Dickenshied S.; Doerres D.; Fisher T.; Hagee W.; Hill J.; Miner M.; Noss D.; Piacentine N.; Smith M.; Toland A.; Wren P.; Bernacki M.; Munoz D. Pino; Watanabe S. -i.; Sandford S. A.; Aqueche A.; Ashman B.; Barker M.; Bartels A.; Berry K.; Bos B.; Burns R.; Calloway A.; Carpenter R.; Castro N.; Cosentino R.; Donaldson J.; Dworkin J. P.; Cook J. Elsila; Emr C.; Everett D.; Fennell D.; Fleshman K.; Folta D.; Gallagher D.; Garvin J.; Getzandanner K.; Glavin D.; Hull S.; Hyde K.; Ido H.; Ingegneri A.; Jones N.; Kaotira P.; Lim L. F.; Liounis A.; Lorentson C.; Lorenz D.; Lyzhoft J.; Mazarico E. M.; Mink R.; Moore W.; Moreau M.; Mullen S.; Nagy J.; Neumann G.; Nuth J.; Poland D.; Reuter D. C.; Rhoads L.; Rieger S.; Rowlands D.; Sallitt D.; Scroggins A.; Shaw G.; Simon A. A.; Swenson J.; Vasudeva P.; Wasser M.; Zellar R.; Grossman J.; Johnston G.; Morris M.; Wendel J.; Burton A.; Keller L. P.; McNamara L.; Messenger S.; Nakamura-Messenger K.; Nguyen A.; Righter K.; Queen E.; Bellamy K.; Dill K.; Gardner S.; Giuntini M.; Key B.; Kissell J.; Patterson D.; Vaughan D.; Wright B.; Gaskell R. W.; Le Corre L.; Li J. -Y.; Molaro J. L.; Palmer E. E.; Siegler M. A.; Tricarico P.; Weirich J. R.; Zou X. -D.; Ireland T.; Tait K.; Bland P.; Anwar S.; Bojorquez-Murphy N.; Christensen P. R.; Haberle C. W.; Mehall G.; Rios K.; Franchi I.; Rozitis B.; Beddingfield C. B.; Marshall J.; Brack D. N.; French A. S.; McMahon J. W.; Scheeres D. J.; Jawin E. R.; Mccoy T. J.; Russell S.; Killgore M.; Bottke W. F.; Hamilton V. E.; Kaplan H. H.; Walsh K. J.; Bandfield J. L.; Clark B. C.; Chodas M.; Lambert M.; Masterson R. A.; Daly M. G.; Freemantle J.; Seabrook J. A.; Barnouin O. S.; Craft K.; Daly R. T.; Ernst C.; Espiritu R. C.; Holdridge M.; Jones M.; Nair A. H.; Nguyen L.; Peachey J.; Perry M. E.; Plescia J.; Roberts J. H.; Steele R.; Turner R.; Backer J.; Edmundson K.; Mapel J.; Milazzo M.; Sides S.; Manzoni C.; May B.; Delbo M.; Libourel G.; Michel P.; Ryan A.; Thuillet F.; Marty B.;
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Univ Colorado Smead Dept Aerosp Engn Boulder CO 80309 USA;

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Smithsonian Inst Natl Museum Nat Hist Washington DC USA;

Southwest Meteorite Lab Payson AZ USA;

Southwest Res Inst Boulder CO USA;

Southwest Res Inst Boulder CO USA;

MIT Dept Aeronaut &

Astronaut Space Syst Lab Cambridge MA 02139 USA;

MIT Dept Aeronaut &

Astronaut Space Syst Lab Cambridge MA 02139 USA;

MIT Dept Aeronaut &

Astronaut Space Syst Lab Cambridge MA 02139 USA;

York Univ Ctr Res Earth &

Space Sci Toronto ON Canada;

York Univ Ctr Res Earth &

Space Sci Toronto ON Canada;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

Johns Hopkins Univ Appl Phys Lab Laurel MD 20723 USA;

US Geol Survey Astrogeol Sci Ctr Flagstaff AZ 86001 USA;

US Geol Survey Astrogeol Sci Ctr Flagstaff AZ 86001 USA;

US Geol Survey Astrogeol Sci Ctr Flagstaff AZ 86001 USA;

US Geol Survey Astrogeol Sci Ctr Flagstaff AZ 86001 USA;

US Geol Survey Astrogeol Sci Ctr Flagstaff AZ 86001 USA;

London Stereoscop Co London England;

London Stereoscop Co London England;

Univ Cote Azur Observ Cote Azur CNRS Lab Lagrange Nice France;

Univ Lorraine Nancy France;

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正文语种 eng
中图分类地球物理学;
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1. Shape of (101955) Bennu indicative of a rubble pile with internal stiffness [J] . Neumann G. A., Ernst C. M., Adam C. D., Nature geoscience . 2019,第4期

机译：（101955）Bennu表示具有内刚度的瓦砾桩
2. Heterogeneous mass distribution of the rubble-pile asteroid (101955) Bennu [J] . D. J. Scheeres, A. S. French, P. Tricarico, Science Advances . 2020,第41期

机译：瓦砾桩小行星（101955）Bennu的异质质量分布
3. Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-Rex imaging and thermal analysis [J] . D. N. DellaGiustina, J. P. Emery, D. R. Golish, Nature Astronomy . 2019,第4期

机译：OSIRIS-Rex成像和热分析的碎石小行星（101955）Bennu的性质
4. Implications Of The Gravity And Geophysical Environment Of (101955) Bennu For NEA Exploration [C] . D.J. Scheeres, A.S. French, J.W. McMahon, IAF Space Exploration Symposium;International Astronautical Congress . 2020

机译：（101955）Bennu对NEA探索的引力和地球物理环境的影响
5. Nonlinear deformations of laterally loaded piles embedded in stiff clay located below the water table: Sensitivity analysis. [D] . Suwarno, Deddy. 2003

机译：埋在地下水位以下硬质粘土中的侧向荷载桩的非线性变形：灵敏度分析。
6. Shape of (101955) Bennu indicative of a rubble pile with internal stiffness [O] . O.S. Barnouin, M.G. Daly, E.E Palmer, -1

机译：（101955）Bennu的形状指示具有内部刚度的瓦砾堆
7. Shape of (101955) Bennu indicative of a rubble pile with internal stiffness [O] . O. S. Barnouin, M. G. Daly, E. E. Palmer, 2019

机译：（101955）Bennu表示带内刚度的瓦砾桩

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

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