Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Kevin J. Walsh"'
Autor:
Olivier Barnouin, Ronald-Louis Ballouz, Simone Marchi, Jean-Baptiste Vincent, Harrison Agrusa, Yun Zhang, Carolyn M. Ernst, Maurizio Pajola, Filippo Tusberti, Alice Lucchetti, R. Terik Daly, Eric Palmer, Kevin J. Walsh, Patrick Michel, Jessica M. Sunshine, Juan L. Rizos, Tony L. Farnham, Derek C. Richardson, Laura M. Parro, Naomi Murdoch, Colas Q. Robin, Masatoshi Hirabayashi, Tomas Kahout, Erik Asphaug, Sabina D. Raducan, Martin Jutzi, Fabio Ferrari, Pedro Henrique Aragao Hasselmann, Adriano CampoBagatin, Nancy L. Chabot, Jian-Yang Li, Andrew F. Cheng, Michael C. Nolan, Angela M. Stickle, Ozgur Karatekin, Elisabetta Dotto, Vincenzo Della Corte, Elena Mazzotta Epifani, Alessandro Rossi, Igor Gai, Jasinghege Don Prasanna Deshapriya, Ivano Bertini, Angelo Zinzi, Josep M. Trigo-Rodriguez, Joel Beccarelli, Stavro Lambrov Ivanovski, John Robert Brucato, Giovanni Poggiali, Giovanni Zanotti, Marilena Amoroso, Andrea Capannolo, Gabriele Cremonese, Massimo Dall’Ora, Simone Ieva, Gabriele Impresario, Michèle Lavagn, Dario Modenini, Pasquale Palumbo, Davide Perna, Simone Pirrotta, Paolo Tortora, Marco Zannoni, Andrew S. Rivkin
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-14 (2024)
Abstract Images collected during NASA’s Double Asteroid Redirection Test (DART) mission provide the first resolved views of the Didymos binary asteroid system. These images reveal that the primary asteroid, Didymos, is flattened and has plausible u
Externí odkaz:
https://doaj.org/article/0d20cb5093344cc2bbc9fb35eeab0876
Autor:
Olivier Barnouin, Ronald-Louis Ballouz, Simone Marchi, Jean-Baptiste Vincent, Harrison Agrusa, Yun Zhang, Carolyn M. Ernst, Maurizio Pajola, Filippo Tusberti, Alice Lucchetti, R. Terik Daly, Eric Palmer, Kevin J. Walsh, Patrick Michel, Jessica M. Sunshine, Juan L. Rizos, Tony L. Farnham, Derek C. Richardson, Laura M. Parro, Naomi Murdoch, Colas Q. Robin, Masatoshi Hirabayashi, Tomas Kahout, Erik Asphaug, Sabina D. Raducan, Martin Jutzi, Fabio Ferrari, Pedro Henrique Aragao Hasselmann, Adriano CampoBagatin, Nancy L. Chabot, Jian-Yang Li, Andrew F. Cheng, Michael C. Nolan, Angela M. Stickle, Ozgur Karatekin, Elisabetta Dotto, Vincenzo Della Corte, Elena Mazzotta Epifani, Alessandro Rossi, Igor Gai, Jasinghege Don Prasanna Deshapriya, Ivano Bertini, Angelo Zinzi, Josep M. Trigo-Rodriguez, Joel Beccarelli, Stavro Lambrov Ivanovski, John Robert Brucato, Giovanni Poggiali, Giovanni Zanotti, Marilena Amoroso, Andrea Capannolo, Gabriele Cremonese, Massimo Dall’Ora, Simone Ieva, Gabriele Impresario, Michèle Lavagn, Dario Modenini, Pasquale Palumbo, Davide Perna, Simone Pirrotta, Paolo Tortora, Marco Zannoni, Andrew S. Rivkin
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-1 (2024)
Externí odkaz:
https://doaj.org/article/06543e61f2ae4b099253ef8c01f5119b
Autor:
Mikael Granvik, Kevin J. Walsh
Publikováno v:
The Astrophysical Journal Letters, Vol 960, Iss 2, p L9 (2024)
Numerical modeling has long suggested that gravitationally bound (or so-called rubble-pile) near-Earth asteroids (NEAs) can be destroyed by tidal forces during close and slow encounters with terrestrial planets. However, tidal disruptions of NEAs hav
Externí odkaz:
https://doaj.org/article/4398b5979849423585cdd173e33a6b1d
Autor:
Matija Ćuk, Harrison Agrusa, Rachel H. Cueva, Fabio Ferrari, Masatoshi Hirabayashi, Seth A. Jacobson, Jay McMahon, Patrick Michel, Paul Sánchez, Daniel J. Scheeres, Stephen Schwartz, Kevin J. Walsh, Yun Zhang
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 7, p 166 (2024)
The near-Earth binary asteroid Didymos was the target of the planetary defense demonstration mission DART in 2022 September. The smaller binary component, Dimorphos, was impacted by the spacecraft in order to measure momentum transfer in kinetic impa
Externí odkaz:
https://doaj.org/article/bf2a72a5feed41d8be9775e88760cb14
Autor:
Rogerio Deienno, David Nesvorný, Matthew S. Clement, William F. Bottke, André Izidoro, Kevin J. Walsh
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 5, p 110 (2024)
The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex. The former probably originated from the inner solar system (interior to Jupiter’s orbit), w
Externí odkaz:
https://doaj.org/article/f6c86c4e955c4859b0ab19445cfa1654
Autor:
Andrew J. Ryan, Benjamin Rozitis, Daniel Pino Munoz, Kris J. Becker, Joshua P. Emery, Michael C. Nolan, Marc Bernacki, Marco Delbo, Catherine M. Elder, Matthew Siegler, Erica R. Jawin, Dathon R. Golish, Kevin J. Walsh, Christopher W. Haberle, Carina A. Bennett, Kenneth L. Edmundson, Victoria E. Hamilton, Phillip R. Christensen, Michael G. Daly, Dante S. Lauretta
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 4, p 92 (2024)
The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission recently returned a sample of rocks and dust collected from asteroid Bennu. We analyzed the highest-resolution thermal data obtained
Externí odkaz:
https://doaj.org/article/e369627937c94601a7d42be03459dd15
Autor:
Yun Zhang, Patrick Michel, Olivier S. Barnouin, James H. Roberts, Michael G. Daly, Ronald-L. Ballouz, Kevin J. Walsh, Derek C. Richardson, Christine M. Hartzell, Dante S. Lauretta
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Asteroid interiors are key to understand their formation and evolution. Here, the authors show that numerically simulated low-cohesion and low-friction structures with several high-cohesion internal zones can explain asteroid Bennu’s geophysical ch
Externí odkaz:
https://doaj.org/article/035f07c2e41b47aaa86b2620aa1a1085
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 12, p 245 (2023)
We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components. Though the method may be applie
Externí odkaz:
https://doaj.org/article/9d348d8ed898466ea1121f2a014b2ba8
Autor:
Koji Wada, Matthias Grott, Patrick Michel, Kevin J. Walsh, Antonella M. Barucci, Jens Biele, Jürgen Blum, Carolyn M. Ernst, Jan Thimo Grundmann, Bastian Gundlach, Axel Hagermann, Maximilian Hamm, Martin Jutzi, Myung-Jin Kim, Ekkehard Kührt, Lucille Le Corre, Guy Libourel, Roy Lichtenheldt, Alessandro Maturilli, Scott R. Messenger, Tatsuhiro Michikami, Hideaki Miyamoto, Stefano Mottola, Thomas Müller, Akiko M. Nakamura, Larry R. Nittler, Kazunori Ogawa, Tatsuaki Okada, Ernesto Palomba, Naoya Sakatani, Stefan E. Schröder, Hiroki Senshu, Driss Takir, Michael E. Zolensky, International Regolith Science Group (IRSG) in Hayabusa2 project
Publikováno v:
Progress in Earth and Planetary Science, Vol 5, Iss 1, Pp 1-30 (2018)
Abstract Asteroid (162173) Ryugu is the target object of Hayabusa2, an asteroid exploration and sample return mission led by Japan Aerospace Exploration Agency (JAXA). Ground-based observations indicate that Ryugu is a C-type near-Earth asteroid with
Externí odkaz:
https://doaj.org/article/c8ae8958edec4f278d4bdfaf8a5de642
Autor:
Keara N. Burke, Daniella N. DellaGiustina, Carina A. Bennett, Kevin J. Walsh, Maurizio Pajola, Edward B. Bierhaus, Michael C. Nolan, William V. Boynton, Juliette I. Brodbeck, Harold C. Connolly, Jasinghege Don Prasanna Deshapriya, Jason P. Dworkin, Catherine M. Elder, Dathon R. Golish, Rachael H. Hoover, Erica R. Jawin, Timothy J. McCoy, Patrick Michel, Jamie L. Molaro, Jennifer O. Nolau, Jacob Padilla, Bashar Rizk, Stuart J. Robbins, Eric M. Sahr, Peter H. Smith, Stephanie J. Stewart, Hannah C. M. Susorney, Heather L. Enos, Dante S. Lauretta
Publikováno v:
Remote Sensing, Vol 13, Iss 7, p 1315 (2021)
We manually mapped particles ranging in longest axis from 0.3 cm to 95 m on (101955) Bennu for the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) asteroid sample return mission. This enabled t
Externí odkaz:
https://doaj.org/article/98def84049054f81a4e130c725d38bba