Results 31 to 40 of about 440 (144)

Photometry of Outer Solar System Objects from the Dark Energy Survey. I. Photometric Methods, Light-curve Distributions, and Trans-Neptunian Binaries

The Astrophysical Journal Supplement Series, 2023
We report the methods of and initial scientific inferences from the extraction of precision photometric information for the >800 trans-Neptunian objects (TNOs) discovered in the images of the Dark Energy Survey (DES). Scene-modeling photometry is used to
Pedro H. Bernardinelli, Gary M. Bernstein, Nicholas Jindal, T. M. C. Abbott, M. Aguena, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, D. Friedel, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas Malagón, M. Raveri, E. Sanchez, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, A. R. Walker, P. Wiseman, Y. Zhang, (The DES Collaboration)   +53 more
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The Secular Dynamical Evolution of Binary Asteroid System (65803) Didymos Post-DART

The Planetary Science Journal
The successful impact of NASA’s DART mission with Dimorphos, the secondary body of binary asteroid system (65803) Didymos, altered the attitude, shape, and orbit of Dimorphos.
Rachel H. Cueva, Jay W. McMahon, Alex J. Meyer, Daniel J. Scheeres, Masatoshi Hirabayashi, Sabina D. Raducan, Seth A. Jacobson, Colby C. Merrill   +7 more
doaj   +1 more source

The Cumulation of Debris Clouds around a Fast-rotating Asteroid

The Astrophysical Journal
The rotational mass loss has been realized to be a prevalent mechanism to produce low-speed debris near the asteroid, and the size composition of the asteroid’s surface regolith has been closely measured by in situ explorations.
Chenyang Huang, Yang Yu, Zhijun Song, Bin Cheng, Patrick Michel, Hexi Baoyin   +5 more
doaj   +1 more source

A promising view to the Moon: Anticipations for Tianwen-2 samples returned from Kamo’oalewa

Earth and Planetary Physics
The exploration of asteroids has received increasing attention since the 1990s because of the unique information these objects contain about the history of the early solar system. Quasi-satellites are a population of asteroids that co-orbit closely with,
WenZhe Li, Yong Wei, Jian-Yang Li, Wei Yang   +3 more
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An Earth Encounter as the Cause of Chaotic Dynamics in Binary Asteroid (35107) 1991VH

The Planetary Science Journal
Among binary asteroids, (35107) 1991VH stands out as unique given the likely chaotic rotation within its secondary component. The source of this excited dynamical state is unknown. In this work, we demonstrate that a past close encounter with Earth could
Alex J. Meyer, Oscar Fuentes-Muñoz, Ioannis Gkolias, Kleomenis Tsiganis, Petr Pravec, Shantanu Naidu, Daniel J. Scheeres   +6 more
doaj   +1 more source

Diverse configurations of binary asteroids explained by multi-generation satellites

Nature Communications
Binary asteroid systems are ubiquitous in the Solar System. Many of them originate from rotational breakup, where an asteroid’s spin-up triggers mass shedding and subsequent satellite formation from a transient debris disk.
Wen-Yue Dai, Bin Cheng, Yukun Huang, Yifei Jiao, Wen-Han Zhou, Kun-Yi Ren, Harrison Agrusa, Seth Jacobson, Eiichiro Kokubo, Sébastien Charnoz, Yang Yu, Hexi Baoyin, Junfeng Li   +12 more
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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
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Orbital and Physical Characterization of Asteroid Dimorphos Following the DART Impact

The Planetary Science Journal
The Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos, on 2022 September 26 UTC.
Shantanu P. Naidu, Steven R. Chesley, Nicholas Moskovitz, Cristina Thomas, Alex J. Meyer, Petr Pravec, Peter Scheirich, Davide Farnocchia, Daniel J. Scheeres, Marina Brozovic, Lance A. M. Benner, Andrew S. Rivkin, Nancy L. Chabot   +12 more
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An Updated Shape Model of Dimorphos from DART Data

The Planetary Science Journal
Dimorphos was the target of the Double Asteroid Redirection Test (DART) mission. This paper summarizes the properties of an updated shape model of Dimorphos, describes the differences between the updated shape model and an earlier version published by ...
R. Terik Daly, Carolyn M. Ernst, Olivier S. Barnouin, Robert W. Gaskell, Hari Nair, Harrison Agrusa, Nancy L. Chabot, Andrew F. Cheng, Elisabetta Dotto, Elena Mazzotta Epifani, Raymond C. Espiritu, Tony L. Farnham, Eric E. Palmer, Petr Pravec, Andrew S. Rivkin, Dany C. Waller, Angelo Zinzi, the DART and LICIACube teams   +17 more
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Fully Coherent Model of Dynamics around Binary Asteroids: Application to Didymos and the DART Impact

The Planetary Science Journal
The dynamical environment around binary asteroids has been studied in depth, but these models typically make assumptions about the eccentricity, shapes, or rotational stability of the asteroids.
Alex J. Meyer, Daniel J. Scheeres
doaj   +1 more source