Results 91 to 100 of about 1,071 (195)

Secular dynamics of selected asteroid families

, 2019
Asteroid families are populations of asteroids in the Main Belt that share a common origin, that is they are the fragments of energetic collisions between two asteroids. Their study over the years has produced a number of important results concerning the collisional and dynamical evolution of the Main Belt, the physical properties of the primordial ...
openaire   +2 more sources

Evidence for YORP-induced Spin Deceleration in Asteroid (433) Eros

The Astrophysical Journal
Theoretically, the Yarkovsky–O’Keefe–Radzievskii–Paddack (YORP) effect induced by thermal reemission from asteroid surfaces can either accelerate or decelerate their rotation.
Shuai Feng, Shaoming Hu, Xu Chen, Liyong Zhou, Yangbo Xu, Zehua Qi   +5 more
doaj   +1 more source

Pre-impact Thermophysical Properties and the Yarkovsky Effect of NASA DART Target (65803) Didymos

The Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) spacecraft impacted the secondary body of the binary asteroid (65803) Didymos on 2022 September 26 and altered its orbit about the primary body.
Benjamin Rozitis, Simon F. Green, Samuel L. Jackson, Colin Snodgrass, Cyrielle Opitom, Thomas G. Müller, Ulrich C. Kolb, Steven R. Chesley, R. Terik Daly, Cristina A. Thomas, Andrew S. Rivkin   +10 more
doaj   +1 more source

Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System

The Planetary Science Journal
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.
Harrison F. Agrusa, Yun Zhang, Derek C. Richardson, Petr Pravec, Matija Ćuk, Patrick Michel, Ronald-Louis Ballouz, Seth A. Jacobson, Daniel J. Scheeres, Kevin Walsh, Olivier Barnouin, R. Terik Daly, Eric Palmer, Maurizio Pajola, Alice Lucchetti, Filippo Tusberti, Joseph V. DeMartini, Fabio Ferrari, Alex J. Meyer, Sabina D. Raducan, Paul Sánchez   +20 more
doaj   +1 more source

Precise Orbit Determination of Mars-crossing Asteroids

The Astronomical Journal
This study investigates the orbit determination of the Mars-crossing asteroids (MCAs) with a focus on the possibility of detecting their Yarkovsky signals. We analyze the influences of force model uncertainties on MCA orbits, including the uncertainty of
Xin Liu, Xi-Yun Hou, Jun Yao, Shanhong Liu, Roberto Armellin, Qingbo Gan, Zhitao Yang   +6 more
doaj   +1 more source

High-speed Boulders and the Debris Field in DART Ejecta

The Planetary Science Journal
On 2022 September 26 the Double Asteroid Redirection Test (DART) spacecraft collided with Dimorphos, the moon of the near-Earth asteroid 65803 Didymos, in a full-scale demonstration of a kinetic impactor concept.
Tony L. Farnham, Jessica M. Sunshine, Masatoshi Hirabayashi, Carolyn M. Ernst, R. Terik Daly, Harrison F. Agrusa, Olivier S. Barnouin, Jian-Yang Li, Kathryn M. Kumamoto, Megan Bruck Syal, Sean E. Wiggins, Evan Bjonnes, Angela M. Stickle, Sabina D. Raducan, Andrew F. Cheng, David A. Glenar, Ramin Lolachi, Timothy J. Stubbs, Eugene G. Fahnstock, Marilena Amoroso, Ivano Bertini, John R. Brucato, Andrea Capannolo, Gabriele Cremonese, Massimo Dall’Ora, Vincenzo Della Corte, J. D. P. Deshapriya, Elisabetta Dotto, Igor Gai, Pedro H. Hasselmann, Simone Ieva, Gabriele Impresario, Stavro L. Ivanovski, Michèle Lavagna, Alice Lucchetti, Francesco Marzari, Elena Mazzotta Epifani, Dario Modenini, Maurizio Pajola, Pasquale Palumbo, Simone Pirrotta, Giovanni Poggiali, Alessandro Rossi, Paolo Tortora, Marco Zannoni, Giovanni Zanotti, Angelo Zinzi   +46 more
doaj   +1 more source

Size–Frequency Distribution of Terrestrial Leftover Planetesimals and S-complex Implanted Asteroids

The Astrophysical Journal
The isotopic composition of meteorites linked to S-complex asteroids has been used to suggest that these asteroids originated in the terrestrial planet’s region, i.e., within 1.5 au, and later got implanted into the main asteroid belt (MAB).
Rogerio Deienno, André Izidoro, David Nesvorný, William F. Bottke, Fernando Roig, Simone Marchi   +5 more
doaj   +1 more source

Gauss-Radau Small-body Simulator (GRSS): An Open-source Library for Planetary Defense

The Planetary Science Journal
We present GRSS , a small-body propagation and orbit determination library specifically designed for planetary defense applications. GRSS is an end-to-end, open-source software tool that begins with optical observations obtained from the Minor Planet ...
Rahil Makadia, Davide Farnocchia, Steven R. Chesley, Siegfried Eggl   +3 more
doaj   +1 more source

Achievement of the Planetary Defense Investigations of the Double Asteroid Redirection Test (DART) Mission

The Planetary Science Journal
NASA's Double Asteroid Redirection Test (DART) mission was the first to demonstrate asteroid deflection, and the mission's Level 1 requirements guided its planetary defense investigations. Here, we summarize DART's achievement of those requirements.
Nancy L. Chabot, Andrew S. Rivkin, Andrew F. Cheng, Olivier S. Barnouin, Eugene G. Fahnestock, Derek C. Richardson, Angela M. Stickle, Cristina A. Thomas, Carolyn M. Ernst, R. Terik Daly, Elisabetta Dotto, Angelo Zinzi, Steven R. Chesley, Nicholas A. Moskovitz, Brent W. Barbee, Paul Abell, Harrison F. Agrusa, Michele T. Bannister, Joel Beccarelli, Dmitriy L. Bekker, Megan Bruck Syal, Bonnie J. Buratti, Michael W. Busch, Adriano Campo Bagatin, Joseph P. Chatelain, Sidney Chocron, Gareth S. Collins, Luca Conversi, Thomas M. Davison, Mallory E. DeCoster, J. D. Prasanna Deshapriya, Siegfried Eggl, Raymond C. Espiritu, Tony L. Farnham, Marin Ferrais, Fabio Ferrari, Dora Föhring, Oscar Fuentes-Muñoz, Igor Gai, Carmine Giordano, David A. Glenar, Edward Gomez, Dawn M. Graninger, Simon F. Green, Sarah Greenstreet, Pedro H. Hasselmann, Isabel Herreros, Masatoshi Hirabayashi, Marek Husárik, Simone Ieva, Stavro L. Ivanovski, Samuel L. Jackson, Emmanuel Jehin, Martin Jutzi, Ozgur Karatekin, Matthew M. Knight, Ludmilla Kolokolova, Kathryn M. Kumamoto, Michael Küppers, Fiorangela La Forgia, Monica Lazzarin, Jian-Yang Li, Tim A. Lister, Ramin Lolachi, Michael P. Lucas, Alice Lucchetti, Robert Luther, Rahil Makadia, Elena Mazzotta Epifani, Jay McMahon, Gianmario Merisio, Colby C. Merrill, Alex J. Meyer, Patrick Michel, Marco Micheli, Alessandra Migliorini, Kate Minker, Dario Modenini, Fernando Moreno, Naomi Murdoch, Brian Murphy, Shantanu P. Naidu, Hari Nair, Ryota Nakano, Cyrielle Opitom, Jens Ormö, J. Michael Owen, Maurizio Pajola, Eric E. Palmer, Pasquale Palumbo, Paolo Panicucci, Laura M. Parro, Jason M. Pearl, Antti Penttilä, Davide Perna, Elisabeta Petrescu, Petr Pravec, Sabina D. Raducan, K. T. Ramesh, Ryan Ridden-Harper, Juan L. Rizos, Alessandro Rossi, Nathan X. Roth, Agata Rożek, Benjamin Rozitis, Eileen V. Ryan, William H. Ryan, Paul Sánchez, Toni Santana-Ros, Daniel J. Scheeres, Peter Scheirich, Cem Berk Senel, Colin Snodgrass, Stefania Soldini, Damya Souami, Thomas S. Statler, Rachel Street, Timothy J. Stubbs, Jessica M. Sunshine, Nicole J. Tan, Gonzalo Tancredi, Calley L. Tinsman, Paolo Tortora, Filippo Tusberti, James D. Walker, C. Dany Waller, Kai Wünnemann, Marco Zannoni, Yun Zhang   +128 more
doaj   +1 more source

Contact dynamics investigation towards microgravity experiment for asteroid-related scenarios. [PDF]

Multibody Syst Dyn
Vaghi S, Fodde I, Panicucci P, Cremasco A, Ferrari F.   +4 more
europepmc   +1 more source