Zobrazeno 1 - 10
of 301
pro vyhledávání: '"Richardson Derek C."'
Autor:
Scheirich, Peter, Pravec, Petr, Meyer, Alex J., Agrusa, Harrison F., Richardson, Derek C., Chesley, Steven R., Naidu, Shantanu P., Thomas, Cristina, Moskovitz, Nicholas A.
Publikováno v:
The Planetary Science Journal, 5(1), 17 (2024)
The NASA Double Asteroid Redirection Test (DART) spacecraft successfully impacted the Didymos-Dimorphos binary asteroid system on 2022 September 26 UTC. We provide an update to its pre-impact mutual orbit and estimate the post-impact physical and orb
Externí odkaz:
http://arxiv.org/abs/2403.02804
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
We present an approach for the inclusion of non-spherical constituents in high-resolution N-body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model non-spherical components. Though the method may be appli
Externí odkaz:
http://arxiv.org/abs/2311.11322
Publikováno v:
EPJ Web of Conferences, Vol 249, p 10003 (2021)
We numerically study the effect of inter-particle friction coefficient on the response to cyclical pure shear of spherical particles in three dimensions. We focus on the rotations and translations of grains and look at the spatial distribution of the
Externí odkaz:
https://doaj.org/article/43e5d688c643483fa2de8f5be010c369
Autor:
Meyer, Alex J., Agrusa, Harrison F., Richardson, Derek C., Daly, R. Terik, Fuentes-Muñoz, Oscar, Hirabayashi, Masatoshi, Michel, Patrick, Merrill, Colby C., Nakano, Ryota, Cheng, Andrew F., Barbee, Brent, Barnouin, Olivier S., Chesley, Steven R., Ernst, Carolyn M., Gkolias, Ioannis, Moskovitz, Nicholas A., Naidu, Shantanu P., Pravec, Petr, Scheirich, Petr, Thomas, Cristina A., Tsiganis, Kleomenis, Scheeres, Daniel J.
With the successful impact of the NASA DART spacecraft in the Didymos-Dimorphos binary asteroid system, we provide an initial analysis of the post-impact perturbed binary asteroid dynamics. To compare our simulation results with observations, we intr
Externí odkaz:
http://arxiv.org/abs/2307.16777
Autor:
Cheng, Andrew F., Agrusa, Harrison F., Barbee, Brent W., Meyer, Alex J., Farnham, Tony L., Raducan, Sabina D., Richardson, Derek C., Dotto, Elisabetta, Zinzi, Angelo, Della Corte, Vincenzo, Statler, Thomas S., Chesley, Steven, Naidu, Shantanu P., Hirabayashi, Masatoshi, Li, Jian-Yang, Eggl, Siegfried, Barnouin, Olivier S., Chabot, Nancy L., Chocron, Sidney, Collins, Gareth S., Daly, R. Terik, Davison, Thomas M., DeCoster, Mallory E., Ernst, Carolyn M., Ferrari, Fabio, Graninger, Dawn M., Jacobson, Seth A., Jutzi, Martin, Kumamoto, Kathryn M., Luther, Robert, Lyzhoft, Joshua R., Michel, Patrick, Murdoch, Naomi, Nakano, Ryota, Palmer, Eric, Rivkin, Andrew S., Scheeres, Daniel J., Stickle, Angela M., Sunshine, Jessica M., Trigo-Rodriguez, Josep M., Vincent, Jean-Baptiste, Walker, James D., Wünnemann, Kai, Zhang, Yun, Amoroso, Marilena, Bertini, Ivano, Brucato, John R., Capannolo, Andrea, Cremonese, Gabriele, Dall'Ora, Massimo, Deshapriya, Prasanna J. D., Gai, Igor, Hasselmann, Pedro H., Ieva, Simone, Impresario, Gabriele, Ivanovski, Stavro L., Lavagna, Michèle, Lucchetti, Alice, Epifani, Elena M., Modenini, Dario, Pajola, Maurizio, Palumbo, Pasquale, Perna, Davide, Pirrotta, Simone, Poggiali, Giovanni, Rossi, Alessandro, Tortora, Paolo, Zannoni, Marco, Zanotti, Giovanni
The NASA Double Asteroid Redirection Test (DART) mission performed a kinetic impact on asteroid Dimorphos, the satellite of the binary asteroid (65803) Didymos, at 23:14 UTC on September 26, 2022 as a planetary defense test. DART was the first hyperv
Externí odkaz:
http://arxiv.org/abs/2303.03464
Autor:
Agrusa, Harrison, Ballouz, Ronald, Meyer, Alex J., Tasev, Elisa, Noiset, Guillaume, Karatekin, Özgur, Michel, Patrick, Richardson, Derek C., Hirabayashi, Masatoshi
Publikováno v:
A&A 664, L3 (2022)
NASA's Double Asteroid Redirection Test (DART) mission will kinetically impact Dimorphos, the secondary component of the Didymos binary asteroid system, which will excite Dimorphos's dynamical state and lead to significant libration about the synchro
Externí odkaz:
http://arxiv.org/abs/2207.14117
Autor:
Richardson, Derek C., Agrusa, Harrison F., Barbee, Brent, Bottke, William F., Cheng, Andrew F., Eggl, Siegfried, Ferrari, Fabio, Hirabayashi, Masatoshi, Karatekin, Özgür, McMahon, Jay, Schwartz, Stephen R., Ballouz, Ronald-Louis, Bagatin, Adriano Campo, Dotto, Elisabetta, Fahnestock, Eugene G., Fuentes-Muñoz, Oscar, Gkolias, Ioannis, Hamilton, Douglas P., Jacobson, Seth A., Jutzi, Martin, Lyzhoft, Josh, Makadia, Rahil, Meyer, Alex J., Michel, Patrick, Nakano, Ryota, Noiset, Guillaume, Raducan, Sabina D., Rambaux, Nicolas, Rossi, Alessandro, Sánchez, Paul, Scheeres, Daniel J., Soldini, Stefania, Stickle, Angela M., Tanga, Paolo, Tsiganis, Kleomenis, Zhang, Yun
Publikováno v:
Planet. Sci. J. 3 157 (2022)
NASA's Double Asteroid Redirection Test (DART) spacecraft is planned to impact the natural satellite of (65803) Didymos, Dimorphos, around 23:14 UTC on 26 September 2022, causing a reduction in its orbital period that will be measurable with ground-b
Externí odkaz:
http://arxiv.org/abs/2207.06998
Publikováno v:
Planet. Sci. J. 3 158 (2022)
Previous efforts have modeled the Didymos system as two irregularly shaped rigid bodies, although it is likely that one or both components are in fact rubble piles. Here, we relax the rigid-body assumption to quantify how this affects the spin and or
Externí odkaz:
http://arxiv.org/abs/2207.06995
Autor:
Hestroffer Daniel, Campo Bagatín Adriano, Losert Wolfgang, Opsomer Eric, Sánchez Paul, Scheeres Daniel J., Staron Lydie, Taberlet Nicolas, Yano Hajime, Eggl Siegfried, Lecomte Charles-Edouard, Murdoch Naomi, Radjai Fahrang, Richardson Derek C., Salazar Marcos, Schwartz Stephen R., Tanga Paolo
Publikováno v:
EPJ Web of Conferences, Vol 140, p 14011 (2017)
Asteroids and other Small Solar System Bodies (SSSBs) are currently of great scientific and even industrial interest. Asteroids exist as the permanent record of the formation of the Solar System and therefore hold many clues to its understanding as a
Externí odkaz:
https://doaj.org/article/d10c1c90cf42405a91b4d1ec13264a45