Zobrazeno 1 - 10
of 754
pro vyhledávání: '"RADUCAN, A ."'
Autor:
Wimarsson, John, Xiang, Zhen, Ferrari, Fabio, Jutzi, Martin, Madeira, Gustavo, Raducan, Sabina D., Sánchez, Paul
Binary asteroid formation is a highly complex process, which has been highlighted with recent observations of satellites with unexpected shapes, such as the oblate Dimorphos by the NASA DART mission and the contact binary Selam by NASA's Lucy mission
Externí odkaz:
http://arxiv.org/abs/2407.15543
Autor:
Kohout, Tomas, Pajola, Maurizio, Soini, Assi-Johanna, Lucchetti, Alice, Luttinen, Arto, Duchêne, Alexia, Murdoch, Naomi, Luther, Robert, Chabot, Nancy L., Raducan, Sabina D., Sánchez, Paul, Barnouin, Olivier S., Rivkin, Andrew S.
Publikováno v:
The Planetary Science Journal, 5, 128 (2024)
The ~200 m/s impact of a single 400-kg Bjurb\"ole L/LL ordinary chondrite meteorite onto sea ice resulted in the catastrophic disruption of the projectile. This resulted in a significant fraction of decimeter-sized fragments that exhibit power law cu
Externí odkaz:
http://arxiv.org/abs/2406.00379
Autor:
Vincent, Jean-Baptiste, Asphaug, Erik, Barnouin, Olivier, Beccarelli, Joel, Benavidez, Paula G., Campo-Bagatin, Adriano, Chabot, Nancy L., Ernst, Carolyn M., Hasselmann, Pedro H., Hirabayashi, Masatoshi, Ieva, Simone, Karatekin, Ozgur, Kasparek, Tomas, Kohout, Tomas, Lin, Zhong-Yi, Lucchetti, Alice, Michel, Patrick, Murdoch, Naomi, Pajola, Maurizio, Parro, Laura M., Raducan, Sabina D., Sunshine, Jessica, Tancredi, Gonzalo, Trigo-Rodriguez, Josep M., Zinzi, Angelo
Morphological mapping is a fundamental step in studying the processes that shaped an asteroid surface. Yet, it is challenging and often requires multiple independent assessments by trained experts. Here, we present fast methods to detect and characte
Externí odkaz:
http://arxiv.org/abs/2405.19764
Autor:
Raducan, S. D., Jutzi, M., Merrill, C. C., Michel, P., Zhang, Y., Hirabayashi, M., Mainzer, A.
We present a series of numerical simulations using a shock physics smoothed particle hydrodynamics (SPH) code, investigating energetic impacts on small celestial bodies characterised by diverse internal structures, ranging from weak and homogeneous c
Externí odkaz:
http://arxiv.org/abs/2403.00683
Autor:
Raducan, S. D., Jutzi, M., Cheng, A. F., Zhang, Y., Barnouin, O., Collins, G. S., Daly, R. T., Davison, T. M., Ernst, C. M., Farnham, T. L., Ferrari, F., Hirabayashi, M., Kumamoto, K. M., Michel, P., Murdoch, N., Nakano, R., Pajola, M., Rossi, A., Agrusa, H. F., Barbee, B. W., Syal, M. Bruck, Chabot, N. L., Dotto, E., Fahnestock, E. G., Hasselmann, P. H., Herreros, I., Ivanovski, S., Li, J. -Y., Lucchetti, A., Luther, R., Ormö, J., Owen, M., Pravec, P., Rivkin, A. S., Robin, C. Q., Sánchez, P., Tusberti, F., Wünnemann, K., Zinzi, A., Epifani, E. Mazzotta, Manzoni, C., May, B. H.
On September 26, 2022, NASA's Double Asteroid Redirection Test (DART) mission successfully impacted Dimorphos, the natural satellite of the binary near-Earth asteroid (65803) Didymos. Numerical simulations of the impact provide a means to explore tar
Externí odkaz:
http://arxiv.org/abs/2403.00667
Autor:
Agrusa, Harrison F., Zhang, Yun, Richardson, Derek C., Pravec, Petr, Ćuk, Matija, Michel, Patrick, Ballouz, Ronald-Louis, Jacobson, Seth A., Scheeres, Daniel J., Walsh, Kevin, Barnouin, Olivier, Daly, R. Terik, Palmer, Eric, Pajola, Maurizio, Lucchetti, Alice, Tusberti, Filippo, DeMartini, Joseph V., Ferrari, Fabio, Meyer, Alex J., Raducan, Sabina D., Sánchez, Paul
We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos-Dimorphos binary, which was the first small binary visited by a spacecraft. Using a suite of $N$-body simulations
Externí odkaz:
http://arxiv.org/abs/2401.09269
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:
Colas Q. Robin, Alexia Duchene, Naomi Murdoch, Jean-Baptiste Vincent, Alice Lucchetti, Maurizio Pajola, Carolyn M. Ernst, R. Terik Daly, Olivier S. Barnouin, Sabina D. Raducan, Patrick Michel, Masatochi Hirabayashi, Alexander Stott, Gabriela Cuervo, Erica R. Jawin, Josep M. Trigo-Rodriguez, Laura M. Parro, Cecily Sunday, Damien Vivet, David Mimoun, Andrew S. Rivkin, Nancy L. Chabot
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Planetary defense efforts rely on estimates of the mechanical properties of asteroids, which are difficult to constrain accurately from Earth. The mechanical properties of asteroid material are also important in the interpretation of the Dou
Externí odkaz:
https://doaj.org/article/1221a7ffe743415f8e65e051ccc4ba61
Autor:
A. Lucchetti, S. Cambioni, R. Nakano, O. S. Barnouin, M. Pajola, L. Penasa, F. Tusberti, K. T. Ramesh, E. Dotto, C. M. Ernst, R. T. Daly, E. Mazzotta Epifani, M. Hirabayashi, L. Parro, G. Poggiali, A. Campo Bagatin, R.-L. Ballouz, N. L. Chabot, P. Michel, N. Murdoch, J. B. Vincent, Ö. Karatekin, A. S. Rivkin, J. M. Sunshine, T. Kohout, J.D.P. Deshapriya, P.H.A. Hasselmann, S. Ieva, J. Beccarelli, S. L. Ivanovski, A. Rossi, F. Ferrari, C. Rossi, S. D. Raducan, J. Steckloff, S. Schwartz, J. R. Brucato, M. Dall’Ora, A. Zinzi, A. F. Cheng, M. Amoroso, I. Bertini, A. Capannolo, S. Caporali, M. Ceresoli, G. Cremonese, V. Della Corte, I. Gai, L. Gomez Casajus, E. Gramigna, G. Impresario, R. Lasagni Manghi, M. Lavagna, M. Lombardo, D. Modenini, P. Palumbo, D. Perna, S. Pirrotta, P. Tortora, M. Zannoni, G. Zanotti
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Spacecraft 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. However, signatures of this process on t
Externí odkaz:
https://doaj.org/article/3d00a8056ade429d9b23f5b5673e85d1
Autor:
M. Pajola, F. Tusberti, A. Lucchetti, O. Barnouin, S. Cambioni, C. M. Ernst, E. Dotto, R. T. Daly, G. Poggiali, M. Hirabayashi, R. Nakano, E. Mazzotta Epifani, N. L. Chabot, V. Della Corte, A. Rivkin, H. Agrusa, Y. Zhang, L. Penasa, R.-L. Ballouz, S. Ivanovski, N. Murdoch, A. Rossi, C. Robin, S. Ieva, J. B. Vincent, F. Ferrari, S. D. Raducan, A. Campo-Bagatin, L. Parro, P. Benavidez, G. Tancredi, Ö. Karatekin, J. M. Trigo-Rodriguez, J. Sunshine, T. Farnham, E. Asphaug, J. D. P. Deshapriya, P. H. A. Hasselmann, J. Beccarelli, S. R. Schwartz, P. Abell, P. Michel, A. Cheng, J. R. Brucato, A. Zinzi, M. Amoroso, S. Pirrotta, G. Impresario, I. Bertini, A. Capannolo, S. Caporali, M. Ceresoli, G. Cremonese, M. Dall’Ora, I. Gai, L. Gomez Casajus, E. Gramigna, R. Lasagni Manghi, M. Lavagna, M. Lombardo, D. Modenini, P. Palumbo, D. Perna, P. Tortora, M. Zannoni, G. Zanotti
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Asteroids smaller than 10 km are thought to be rubble piles formed from the reaccumulation of fragments produced in the catastrophic disruption of parent bodies. Ground-based observations reveal that some of these asteroids are today binary
Externí odkaz:
https://doaj.org/article/0d902a164e8b4d9f8a0481e21a0aa355