Results 11 to 20 of about 15,938 (229)
The unexpected surface of asteroid (101955) Bennu [PDF]
Nature, 2019 NASA'S Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth asteroid (101955) Bennu, a primitive body that represents the objects that may have brought prebiotic molecules and volatiles such as water to Earth1.Lauretta, D.S., DellaGiustina, D.N., Bennett, C.A., Golish, D.R., Becker, K.J., Balram-Knutson, S.S., Barnouin, O.S., Becker, T.L., Bottke, W.F., Boynton, W.V., Campins, H., Clark, B.E., Connolly, H.C., d'Aubigny, C.Y. Drouet, Dworkin, J.P., Emery, J.P., Enos, H.L., Hamilton, V.E., Hergenrother, C.W., Howell, E.S., Izawa, M.RM., Kaplan, H.H., Nolan, M.C., Rizk, B., Roper, H.L., Scheeres, D.J., Smith, P.H., Walsh, K.J., Wolner, C.WV., 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., McGraw, L., Ghent, R., Binzel, R.P., Al Asad, M.M., Johnson, C.L., Philpott, L., Susorney, H.CM., Cloutis, E.A., Hanna, R.D., Ciceri, F., Hildebrand, A.R., Ibrahim, E-M., Breitenfeld, L., Glotch, T., Rogers, A.D., Ferrone, S., Thomas, C.A., 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., de Leon, J., Licandro, J., Rizos Garcia, J.L., 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.DP., 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., Asphaug, E., Ballouz, R-L., Burke, K.N., Chojnacki, M., Dean, D., Drozd, K., Gardner, A., Habib, N., Koelbel, L., Kreiner, J., Lambert, D., Malhotra, R., Munoz, R., Schwartz, S.R., Selznick, S., Sutton, S., Dickinson, C., Caplinger, M., Wren, P., Bernacki, M., Munoz, D. Pino, Sandford, S.A., Barker, M., Berry, K., Castro, N., Garvin, J., Getzandanner, K., Glavin, D., Hyde, K., Lim, L.F., Mazarico, E.M., Moreau, M., Neumann, G., Reuter, D.C., Simon, A.A., Wasser, M., Johnston, G., Burton, A., Keller, L.P., Messenger, S., Righter, K., Gardner, S., Wright, B., Molaro, J.L., Palmer, E.E., Siegler, M.A., Weirich, J.R., Ireland, T., Bland, P., Christensen, P.R., Haberle, C.W., Rozitis, B., Beddingfield, C.B., Brack, D.N., French, A.S., Jawin, E.R., Mccoy, T.J., Russell, S., Bandfield, J.L., Clark, B.C., Daly, M.G., Seabrook, J.A., Craft, K., Daly, R.T., Ernst, C., Espiritu, R.C., Nair, A.H., Nguyen, L., Perry, M.E., Steele, R., Edmundson, K., Milazzo, M., Delbo, M., Michel, P., Thuillet, F., Marty, B. +275 moreopenaire +7 more sourcesObservations of "Fresh" and Weathered Surfaces on Asteroid Pairs and
Their Implications on the Rotational-Fission Mechanism [PDF]
Icarus, 2014 The rotational-fission of a rubble-pile asteroid can result in an "asteroid
pair", two un-bound asteroids sharing similar orbits. This mechanism might
exposes material that previously had never have been exposed to the weathering
conditions of space ...Binzel, Richard P., DeMeo, Francesca E., Moskovitz, Nicholas, Oszkiewicz, Dagmara, Polishook, David, Vokrouhlický, David, Žižka, Jindřich +6 morecore +4 more sourcesLow thermal inertia of carbonaceous asteroid Bennu driven by cracks observed in returned samples [PDF]
Nat CommunThermal inertia is used to infer physical properties of asteroid surfaces. The carbonaceous asteroid Bennu has low thermal inertia suggestive of a surface covered in sub-centimeter rock fragments.Ryan A, Ballouz R, Macke R, Ishizaki T, Alasli A, Biele J, Eckley S, Hoover C, Jardine K, King A, Opeil C, Pajola M, Tusberti F, Barnes J, Bates H, Berger E, Bierhaus E, Calva C, Cambioni S, Cheng F, Delbo M, DellaGiustina D, Dworkin J, Elder C, Emery J, Freemantle J, Fujita R, Glavin D, Gonzalez C, Haenecour P, Hamilton V, Hanna R, Hanton L, Harrington R, Hildebrand A, Hill D, Ishimaru K, Jawin E, Kontogiannis M, Lunning N, McCoy T, Molaro J, Montoya M, Nagano H, O’Neal E, Plummer J, Righter K, Sakatani N, Sánchez P, Schofield P, Siegler M, Tanaka S, Zega T, Wolner C, Connolly H, Lauretta D. +55 moreeuropepmc +2 more sourcesThe geology and evolution of the Near-Earth binary asteroid system (65803) Didymos. [PDF]
Nat CommunImages collected during NASA’s Double Asteroid Redirection Test (DART) mission provide the first resolved views of the Didymos binary asteroid system.Barnouin O, Ballouz RL, Marchi S, Vincent JB, Agrusa H, Zhang Y, Ernst CM, Pajola M, Tusberti F, Lucchetti A, Daly RT, Palmer E, Walsh KJ, Michel P, Sunshine JM, Rizos JL, Farnham TL, Richardson DC, Parro LM, Murdoch N, Robin CQ, Hirabayashi M, Kahout T, Asphaug E, Raducan SD, Jutzi M, Ferrari F, Hasselmann PHA, CampoBagatin A, Chabot NL, Li JY, Cheng AF, Nolan MC, Stickle AM, Karatekin O, Dotto E, Della Corte V, Mazzotta Epifani E, Rossi A, Gai I, Deshapriya JDP, Bertini I, Zinzi A, Trigo-Rodriguez JM, Beccarelli J, Ivanovski SL, Brucato JR, Poggiali G, Zanotti G, Amoroso M, Capannolo A, Cremonese G, Dall'Ora M, Ieva S, Impresario G, Lavagn M, Modenini D, Palumbo P, Perna D, Pirrotta S, Tortora P, Zannoni M, Rivkin AS. +62 moreeuropepmc +2 more sourcesFast boulder fracturing by thermal fatigue detected on stony asteroids. [PDF]
Nat CommunSpacecraft observations revealed that rocks on carbonaceous asteroids, which constitute the most numerous class by composition, can develop millimeter-to-meter-scale fractures due to thermal stresses.Lucchetti A, Cambioni S, Nakano R, Barnouin OS, Pajola M, Penasa L, Tusberti F, Ramesh KT, Dotto E, Ernst CM, Daly RT, Mazzotta Epifani E, Hirabayashi M, Parro L, Poggiali G, Campo Bagatin A, Ballouz RL, Chabot NL, Michel P, Murdoch N, Vincent JB, Karatekin Ö, Rivkin AS, Sunshine JM, Kohout T, Deshapriya JDP, Hasselmann PHA, Ieva S, Beccarelli J, Ivanovski SL, Rossi A, Ferrari F, Rossi C, Raducan SD, Steckloff J, Schwartz S, Brucato JR, Dall'Ora M, Zinzi A, Cheng AF, Amoroso M, Bertini I, Capannolo A, Caporali S, Ceresoli M, Cremonese G, Della Corte V, Gai I, Gomez Casajus L, Gramigna E, Impresario G, Lasagni Manghi R, Lavagna M, Lombardo M, Modenini D, Palumbo P, Perna D, Pirrotta S, Tortora P, Zannoni M, Zanotti G. +60 moreeuropepmc +2 more sourcesTHERMAL TOMOGRAPHY OF ASTEROID SURFACE STRUCTURE [PDF]
The Astrophysical Journal, 2016 ABSTRACT Knowledge of the surface thermal inertia of an asteroid can provide insight into its surface structure: porous material has a lower thermal inertia than rock. We develop a means to estimate thermal inertia values of asteroids and use it to show that thermal inertia appears to increase with spin period in the case of main-belt ...Harris, Alan, Drube, Lineopenaire +3 more sourcesSurface Properties of Near-Sun Asteroids
The Planetary Science Journal, 2022 Abstract Near-Earth asteroids (NEAs) with small perihelion distances reach subsolar temperatures of ≥1000 K. They are hypothesized to undergo “supercatastrophic” disruption, potentially caused by near-Sun processes such as thermal cracking, spin-up, meteoroid impacts, and subsurface volatile release, all of which are likely to cause ...Carrie E. Holt, Matthew M. Knight, Michael S. P. Kelley, Quanzhi 泉 志 Ye 叶, Henry H. Hsieh, Colin Snodgrass, Alan Fitzsimmons, Derek C. Richardson, Jessica M. Sunshine, Nora L. Eisner, Annika Gustaffson +10 moreopenaire +5 more sources
