| dc.date.accessioned | 2020-04-08T19:11:42Z | |
| dc.date.available | 2020-04-08T19:11:42Z | |
| dc.date.issued | 2019-04 | |
| dc.date.submitted | 2019-03 | |
| dc.identifier.issn | 1752-0908 | |
| dc.identifier.issn | 1752-0894 | |
| dc.identifier.uri | https://hdl.handle.net/1721.1/124550 | |
| dc.description.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. ©2019 | en_US |
| dc.language.iso | en | |
| dc.publisher | Springer Science and Business Media LLC | en_US |
| dc.relation.isversionof | 10.1038/s41561-019-0330-x | en_US |
| dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
| dc.source | PMC | en_US |
| dc.title | Shape of (101955) Bennu indicative of a rubble pile with internal stiffness | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Barnouin, O.S., et al., "Shape of (101955) Bennu indicative of a rubble pile with internal stiffness." Nature geoscience 12, 4 (April 2019): p. 247-52 doi 10.1038/s41561-019-0330-x ©2019 Author(s) | en_US |
| dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
| dc.relation.journal | Nature geoscience | en_US |
| dc.eprint.version | Author's final manuscript | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dc.date.updated | 2020-04-03T18:02:55Z | |
| dspace.orderedauthors | O.S. Barnouin; M.G. Daly; E.E Palmer; R.W. Gaskell; J.R. Weirich; C.L. Johnson; M.M. Al Asad; J.H. Roberts; M.E. Perry; H.C.M. Susorney; R.T. Daly; E.B. Bierhaus; J.A. Seabrook; R.C. Espiritu; A.H. Nair; L. Nguyen; G.A. Neumann; C.M. Ernst; W.V. Boynton; M.C. Nolan; C.D. Adam; M.C. Moreau; B. Risk; C. Drouet D’Aubigny; E.R. Jawin; K.J. Walsh; P. Michel; S.R. Schwartz; R.-L. Ballouz; E.M. Mazarico; D.J. Scheeres; J. McMahon; W. Bottke; S. Sugita; N. Hirata; N. Hirata; S. Watanabe; K. N. Burke; D. N. DellaGuistina; C. A. Bennett; D.S. Lauretta; C. Adam; M. Al Asad; B. Allen; P. Antreasian; S. Anwar; J. Aponte; A. Aqueche; B. Ashman; E. Asphaug; E. Audi; J. Backer; R. Ballouz; J. Bandfield; M. Barker; O. Barnouin; A. Bartels; A. Barucci; J. Bauman; J. Bayron; K. Becker; T. Becker; C. Beddingfield; K. Bellamy; J. Bellerose; S. Bendall; C. Bennett; K. Berry; S. Bhaskaran; B. Bierhaus; O. Billett; R. Binzel; P. Bland; H. Bloomenthal; L. Bloomquist; D. Blum; A. Boggs; N. Bojorquez-Murphy; B. Bos; W. Bottke; H. Bowles; N. Bowles; C. Boyles; W. Boynton; D. Brack; L. Breitenfeld; J. Brodbeck; E. Brown; J. Brucato; C. Brunet; C. Bryan; B. Buck; K. Burke; R. Burns; A. Burton; A. Calloway; H. Campins; M. Caplinger; B. Carcich; S. Carlson-Kelly; R. Carpenter; S. Carter; N. Castro; J. Cerna; K. Chaffin; W. Chang; S. Chesley; A. Cheuvront; R. A. Chicoine; M. Chodas; M. Chojnacki; P. Christensen; E. Church; B. Clark; B. Clark; S. Clemett; E. Cloutis; M. Coltrin; H. Connolly; J. Contreras; M. Corvin; R. Cosentino; K. Craft; K. Crombie; J. Cutts; J. Daly; M. Daly; C. d’Aubigny; J. de Leon; D. Dean; A. Deguzman; M. Delbo; D. DellaGiustina; J. D. P. Deshapriya; S. Desjardins; B. Diallo; S. Dickenshied; C. Dickinson; K. Dill; D. Doerres; K. Donaldson Hanna; E. Dotto; D. Drinnon; K. Drozd; R. Dubisher; J. Dworkin; D. Eckart; K. Edmundson; C. Elder; J. Elsila Cook; J. Emery; C. Emr; H. Enos; R. Enos; C. Ernst; R. Espiritu; D. Everett; P. Falkenstern; D. Farnocchia; C. Fellows; D. Fennell; Y. Fernandez; T. Ferro; S. Ferrone; A. Fisher; M. Fisher; M. Fisher; T. Fisher; G. Fitzgibbon; M. Fitzgibbon; P. Fleming; K. Fleshman; D. Folta; J. Forelli; S. Fornasier; T. Forrester; K. Fortney; I. Franchi; S. Francis; J. Freemantle; A. French; S. Freund; M. Fulchignoni; I. Galinsky; R. Garcia; A. Gardner; S. Gardner; J. Garvin; R. Gaskell; D. Gaudreau; J. Geeraert; K. Getzandanner; R. Ghent; M. Giuntini; D. Glavin; T. Glotch; D. Golish; S. Gonzales; N. Gorius; J. Grindlay; J. Grossman; D. Guevel; P. Haas; C. Haberle; N. Habib; W. Hagee; T. Haltigin; D. Hamara; V. Hamilton; D. Hammond; R. Hanna; A. Harbison; A. Harch; K. Harshman; C. Hartzell; P. Hasselmann; P. Hayne; C. Hergenrother; D. Highsmith; A. Hilbert; A. Hildebrand; D. Hill; J. Hill; D. Hoak; C. Hoekenga; J. Hoffman; M. Holdridge; J. Hong; S. Hooven; D. Howell; E. Howell; E. Huettner; S. Hull; K. Hyde; H. Ido; A. Ingegneri ; T. Ireland; M. Izawa; F. Jaen; E. Jawin; N. Jayakody; M. Jenkins; C. Johnson; G. Johnston; J. Jones; M. Jones; N. Jones; J. Joseph; P. Kaotira; H. Kaplan; T. Kareta; E. Keates; L. Keller; B. Kennedy; B. Key; J. Kidd; A. Knight; S. Balram-Knutson; L. Koelbel; J. Kreiner; D. Kubitschek; D. Lambert; M. Lambert; C. Lantz; D. Lauretta; L. Le Corre; M. Lefevre; J. Leonard; E. Lessac-Chenen; A. Levine; C. Lewin; J.-Y. Li; J. Liang; G. Libourel; J. Licandro; L. Lim; A. Liounis; C. Lorentson; D. Lorenz; B. Lovelace; M. Loveridge; M. Lujan; A. Lunsford; J. Lyzhoft; H. Ma; C. Maleszewski; R. Malhotra; J. Mapel; K. Marchese; C. Mario; J. Marshall; K. Martin; N. Martinez-Vlasoff; B. Marty; R. Masterson; N. Mastrodemos; C. May; E. Mazarico; E. Mazzotta Epifani; J. McAdams; L. McCarthy; T. McCoy; E. McDonough; T. McElrath; M. McGee; L. McGraw; J. McMahon; L. McNamara; G. Mehall; F. Merlin; S. Messenger; P. Michel; M. Milazzo; C. Miller; G. Miller; S. Millington-Veloza; M. Miner; R. Mink; A. Mirfakhrai; N. Mogk; J. Molaro; W. Moore; M. Moreau; M. Morris; V. Morrison; E. Morton; E. Muhle; S. Mullen; R. Munoz; J. Nagy; H. Nair; K. NakamuraMessenger; D. Nelson; J. Nelson; G. Neumann; A. Nguyen; L. Nguyen; V. Nifo; M. Nolan; C. Norman; D. Noss; J. Nuth; R. Olds; S. Oliver; W. Owen; B. Page; M. Pajola; E. Palmer; C. Parish; R. Park; D. Patterson; J. Peachey; J. Pelgrift; R. Pennington; M. Perry; L. Philpott; N. Piacentine; J. Plescia; G. Poggiali; D. Poland; A. Polit; A. Praet; E. Queen; N. Ramos; M. Rascon; V. Reddy; D. Reuter; L. Rhoads; D. Richardson; S. Rieger; K. Righter; K. Rios; B. Rizk; J. L. Rizos Garcia; J. Roberts; D. Rogers; H. Roper; D. Rowlands; B. Rozitis; A. Rubi; B. Rush; S. Russell; A. Ryan; M. Ryle; E. Sahr; S. Salazar; D. Sallitt; S. Sandford; D. Scheeres; M. Schmitzer; D. Schrader; S. Schwartz; J. Seabrook; S. Selznick; G. Shaw; P. Sherman; N. Shultz; S. Sides; M. Siegler; A. Simon; M. Skeen; J. Small; M. Smith; P. Smith; S. Squyres; K. Stakkestad; D. Stanbridge; R. Steele; J. Stromberg; M. Susak; H. Susorney; B. Sutter; S. Sutton; L. Swanson; J. Swenson; T. Swindle; S. Tachibana; K. Tait; Y. Takahashi; A. Taylor; F. Teti; C. Thayer; C. Thomas; K. Thomas-Keprta; F. Thuillet; A. Toland; Q. Tran; D. Trang; P. Tricarico; R. Turner; P. Vasudeva; D. Vaughan; D. Velez; D. Vokrouhlicky; K. Walsh; S.-i. Watanabe; J. Weirich; C. Welch; J. Wendel; M. Westermann; D. Wibben; B. Williams; K. Williams; R. Witherspoon; P. Wolff; C. Wolner; J. Wood; D. Worden; P. Wren; B. Wright; K. Yetter; M. Yoshikawa; H. Yurimoto; J. Zareski; T. Zega; R. Zellar; Z. Zeszut; X.-D. Zou | en_US |
| dspace.date.submission | 2020-04-03T18:02:58Z | |
| mit.journal.volume | 12 | en_US |
| mit.journal.issue | 4 | en_US |
| mit.license | OPEN_ACCESS_POLICY | |
| mit.metadata.status | Complete | |
