Search Results - "Walsh, K J"

Recent poleward shift of tropical cyclone formation linked to Hadley cell expansion by Sharmila, S., Walsh, K. J. E.

“…Recent research indicates that the annual-mean locations of tropical cyclones have migrated toward higher latitudes. Concurrently, an anthropogenically forced…”
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Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu by Michel, P., Ballouz, R.-L., Barnouin, O. S., Jutzi, M., Walsh, K. J., May, B. H., Manzoni, C., Richardson, D. C., Schwartz, S. R., Sugita, S., Watanabe, S., Miyamoto, H., Hirabayashi, M., Bottke, W. F., Connolly, H. C., Yoshikawa, M., Lauretta, D. S.

“…Asteroid shapes and hydration levels can serve as tracers of their history and origin. For instance, the asteroids (162173) Ryugu and (101955) Bennu have an…”
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Variations in color and reflectance on the surface of asteroid (101955) Bennu by DellaGiustina, D. N., Burke, K. N., Walsh, K. J., Smith, P. H., Golish, D. R., Bierhaus, E. B., Ballouz, R.-L., Becker, T. L., Campins, H., Tatsumi, E., Yumoto, K., Sugita, S., Deshapriya, J. D. Prasanna, Cloutis, E. A., Clark, B. E., Hendrix, A. R., Sen, A., Asad, M. M. Al, Daly, M. G., Applin, D. M., Avdellidou, C., Barucci, M. A., Becker, K. J., Bennett, C. A., Bottke, W. F., Brodbeck, J. I., Jr, H. C. Connolly, Delbo, M., Leon, J. de, d’Aubigny, C.Y. Drouet, Edmundson, K. L., Fornasier, S., Hamilton, V. E., Hasselmann, P. H., Hergenrother, C. W., Howell, E. S., Jawin, E. R., Kaplan, H. H., Corre, L. Le, Lim, L. F., Li, J.Y., Michel, P., Molaro, J. L., Nolan, M. C., Nolau, J., Pajola, M., Parkinson, A., Popescu, M., Porter, N. A., Rizk, B., Rizos, J. L., Ryan, A. J., Rozitis, B., Shultz, N. K., Simon, A. A., Trang, D., Auken, R. B. Van, Wolner, C. W. V., Lauretta, D. S.

“…Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to…”
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In situ evidence of thermally induced rock breakdown widespread on Bennu’s surface by Molaro, J. L., Walsh, K. J., Jawin, E. R., Ballouz, R.-L., Bennett, C. A., DellaGiustina, D. N., Golish, D. R., Drouet d’Aubigny, C., Rizk, B., Schwartz, S. R., Hanna, R. D., Martel, S. J., Pajola, M., Campins, H., Ryan, A. J., Bottke, W. F., Lauretta, D. S.

“…Rock breakdown due to diurnal thermal cycling has been hypothesized to drive boulder degradation and regolith production on airless bodies. Numerous studies…”
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Bennu’s near-Earth lifetime of 1.75 million years inferred from craters on its boulders by Ballouz, R.-L., Walsh, K. J., Barnouin, O. S., DellaGiustina, D. N., Asad, M. Al, Jawin, E. R., Daly, M. G., Bottke, W. F., Michel, P., Avdellidou, C., Delbo, M., Daly, R. T., Asphaug, E., Bennett, C. A., Bierhaus, E. B., Connolly, H. C., Golish, D. R., Molaro, J. L., Nolan, M. C., Pajola, M., Rizk, B., Schwartz, S. R., Trang, D., Wolner, C. W. V., Lauretta, D. S.

“…An asteroid’s history is determined in large part by its strength against collisions with other objects 1 , 2 (impact strength). Laboratory experiments on…”
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Constraining the primordial orbits of the terrestrial planets by Brasser, R., Walsh, K. J., Nesvorný, D.

“…Evidence in the Solar system suggests that the giant planets underwent an epoch of radial migration that was very rapid, with an e-folding time-scale shorter…”
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Fine-regolith production on asteroids controlled by rock porosity by Cambioni, S., Delbo, M., Poggiali, G., Avdellidou, C., Ryan, A. J., Deshapriya, J. D. P., Asphaug, E., Ballouz, R.-L., Barucci, M. A., Bennett, C. A., Bottke, W. F., Brucato, J. R., Burke, K. N., Cloutis, E., DellaGiustina, D. N., Emery, J. P., Rozitis, B., Walsh, K. J., Lauretta, D. S.

“…Spacecraft missions have observed regolith blankets of unconsolidated subcentimetre particles on stony asteroids 1 – 3 . Telescopic data have suggested the…”
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Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles by Walsh, K. J., Ballouz, R-L., Bottke, W. F., Avdellidou, C., Connolly Jr, H. C., Delbo, M., DellaGiustina, D. N., Jawin, E. R., McCoy, T., Michel, P., Morota, T., Nolan, M. C., Schwartz, S. R., Sugita, S., Lauretta, D. S.

“…Rubble pile asteroids are widely understood to be composed of reaccumulated debris following a catastrophic collision between asteroids in the main asteroid…”
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Dynamically downscaled simulations of Australian region tropical cyclones in current and future climates by Lavender, S. L., Walsh, K. J. E.

“…A fine resolution atmospheric model is used to analyse changes in the climatology of tropical cyclones over the Australian region under future climate…”
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Objectively Determined Resolution-Dependent Threshold Criteria for the Detection of Tropical Cyclones in Climate Models and Reanalyses by Walsh, K. J. E., Fiorino, M., Landsea, C. W., McInnes, K. L.

“…Objectively derived resolution-dependent criteria are defined for the detection of tropical cyclones in model simulations and observationally based analyses…”
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Building Terrestrial Planets by Morbidelli, A, Lunine, J.I, O'Brien, D.P, Raymond, S.N, Walsh, K.J

“…This article reviews our current understanding of terrestrial planet formation. The focus is on computer simulations of the dynamical aspects of the accretion…”
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Modified granular impact force laws for the OSIRIS-REx touchdown on the surface of asteroid (101955) Bennu by Ballouz, R-L, Walsh, K J, Sánchez, P, Holsapple, K A, Michel, P, Scheeres, D J, Zhang, Y, Richardson, D C, Barnouin, O S, Nolan, M C, Bierhaus, E B, Connolly, H C, Schwartz, S R, Çelik, O, Baba, M, Lauretta, D S

“…ABSTRACT The OSIRIS-REx mission collected a sample from the surface of the asteroid (101955) Bennu in 2020 October. Here, we study the impact of the OSIRIS-REx…”
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Crater Population on Asteroid (101955) Bennu Indicates Impact Armouring and a Young Surface by Bierhaus, E B, Trang, D, Daly, R T, Barnouin, O S, Walsh, K J, Ballouz, R -L, Bottke, W F, Burke, K N, Perry, M E, Jawin, E R, McCoy, T J, H C Connolly, Jr, Daly, M G, Dworkin, J P, DellaGiustina, D N, Gay, P L, Brodbeck, J I, Nolau, J, Padilla, J., Stewart, S, Schwartz, S, Michel, P, Pajola, M, Lauretta, D S

“…The impactor-to-crater size scaling relationships that enable estimates of planetary surface ages rely on an accurate formulation of impactor–target physics…”
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Low surface strength of the asteroid Bennu inferred from impact ejecta deposit by Perry, M. E., Barnouin, O. S., Daly, R. T., Bierhaus, E. B., Ballouz, R.-L., Walsh, K. J., Daly, M. G., DellaGiustina, D. N., Nolan, M. C., Emery, J. P., Al Asad, M. M., Johnson, C. L., Ernst, C. M., Jawin, E. R., Michel, P., Golish, D. R., Bottke, W. F., Seabrook, J. A., Lauretta, D. S.

“…The surface strength of small rubble-pile asteroids, which are aggregates of unconsolidated material under microgravity, is poorly constrained but critical to…”
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The Morphometry of Impact Craters on Bennu by Daly, R. T., Bierhaus, E. B., Barnouin, O. S., Daly, M. G., Seabrook, J. A., Roberts, J. H., Ernst, C. M., Perry, M. E., Nair, H., Espiritu, R. C., Palmer, E. E., Gaskell, R. W., Weirich, J. R., Susorney, H. C. M., Johnson, C. L., Walsh, K. J., Nolan, M. C., Jawin, E. R., Michel, P., Trang, D., Lauretta, D. S.

“…Bennu is an ~500‐m‐diameter rubble‐pile asteroid that is the target of detailed study by the Origins, Spectral Interpretation, Resource Identification, and…”
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Global Patterns of Recent Mass Movement on Asteroid (101955) Bennu by Jawin, E. R., Walsh, K. J., Barnouin, O. S., McCoy, T. J., Ballouz, R.‐L., DellaGiustina, D. N., Connolly, H. C., Marshall, J., Beddingfield, C., Nolan, M. C., Molaro, J. L., Bennett, C. A., Scheeres, D. J., Daly, M. G., Al Asad, M., Daly, R. T., Bierhaus, E. B., Susorney, H. C. M., Kaplan, H. H., Enos, H. L., Lauretta, D. S.

“…The exploration of near‐Earth asteroids has revealed dynamic surfaces characterized by mobile, unconsolidated material that responds to local geophysical…”
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Tropical cyclones in a regional climate change projection with RegCM4 over the CORDEX Central America domain by Diro, G. T., Giorgi, F., Fuentes-Franco, R., Walsh, K. J. E., Giuliani, G., Coppola, E.

“…The characteristics of tropical cyclones (TCs) over the Central America Coordinated Regional Downscaling Experiment (CORDEX) domain are examined for present…”
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Thermal Fatigue as a Driving Mechanism for Activity on Asteroid Bennu by Molaro, J. L., Hergenrother, C. W., Chesley, S. R., Walsh, K. J., Hanna, R. D., Haberle, C. W., Schwartz, S. R., Ballouz, R.‐L., Bottke, W. F., Campins, H. J., Lauretta, D. S.

“…Many boulders on (101955) Bennu, a near‐Earth rubble pile asteroid, show signs of in situ disaggregation and exfoliation, indicating that thermal fatigue plays…”
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Sub-cellular In-situ Characterization of Ferritin(iron) in a Rodent Model of Spinal Cord Injury by Blissett, A. R., Deng, B., Wei, P., Walsh, K. J., Ollander, B., Sifford, J., Sauerbeck, A. D., McComb, D. W., McTigue, D. M., Agarwal, G.

“…Iron (Fe) is an essential metal involved in a wide spectrum of physiological functions. Sub-cellular characterization of the size, composition, and…”
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Meteoroid Impacts as a Source of Bennu's Particle Ejection Events by Bottke, W. F., Moorhead, A. V., Connolly, H. C., Hergenrother, C. W., Molaro, J. L., Michel, P., Nolan, M. C., Schwartz, S. R., Vokrouhlický, D., Walsh, K. J., Lauretta, D. S.

“…Asteroid (101955) Bennu, a near‐Earth object with a primitive carbonaceous chondrite‐like composition, was observed by the Origins, Spectral Interpretation,…”
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