Results 41 to 50 of about 726,529 (200)

Ejecta Evolution Following a Planned Impact into an Asteroid: The First Five Weeks

open access: yesThe Astrophysical Journal Letters, 2023
The impact of the Double Asteroid Redirection Test spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos’s orbit substantially, largely from the ejection of material.
Theodore Kareta   +87 more
doaj   +1 more source

What If Planet Nine Has Satellites?

open access: yesThe Astrophysical Journal, 2023
In the past decade, numerical simulations started to reveal the possible existence of Planet Nine in our solar system. The Planet Nine scenario can provide an excellent explanation for the clustering in orbital elements for Kuiper Belt objects.
Man Ho Chan
doaj   +1 more source

Semi-analytical orbital model around an oblate body with an inclined eccentric perturber

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The semi-analytical model (based on the averaging technique) for long-term orbital evolution has proven to be useful in both astrophysical and astrodynamical contexts.
Tao Fu, Yue Wang, Weiduo Hu
doaj   +1 more source

Asteroid (469219) 2016 HO3, the smallest and closest Earth quasi-satellite [PDF]

open access: yes, 2016
A number of Earth co-orbital asteroids experience repeated transitions between the quasi-satellite and horseshoe dynamical states. Asteroids 2001 GO2, 2002 AA29, 2003 YN107 and 2015 SO2 are well-documented cases of such a dynamical behaviour.
C. D. L. F. Marcos, R. D. L. F. Marcos
semanticscholar   +1 more source

The operational environment and rotational acceleration of asteroid (101955) Bennu from OSIRIS-REx observations

open access: yesNature Communications, 2019
During its approach to asteroid (101955) Bennu, NASA’s Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) spacecraft surveyed Bennu’s immediate environment, photometric properties, and rotation state ...
C. Hergenrother   +464 more
semanticscholar   +1 more source

Regolith behavior under asteroid-level gravity conditions: low-velocity impact experiments [PDF]

open access: yesProgress in Earth and Planetary Science, 2017
The dusty regolith covering the surfaces of asteroids and planetary satellites differs in size, shape, and composition from terrestrial soil particles and is subject to environmental conditions very different from those found on Earth.
J. Brisset   +5 more
semanticscholar   +1 more source

VLT/MUSE Characterization of Dimorphos Ejecta from the DART Impact

open access: yesThe Planetary Science Journal, 2023
We have observed the Didymos-Dimorphos binary system with the MUSE integral field unit spectrograph mounted at the Very Large Telescope before and after DART impact and captured the ensuing ejecta cone, debris cloud, and tails at subarcsecond resolutions.
Brian P. Murphy   +10 more
doaj   +1 more source

The Dynamical State of the Didymos System before and after the DART Impact

open access: yesThe Planetary Science Journal
NASA’s Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the natural satellite of (65803) Didymos, on 2022 September 26, as a first successful test of kinetic impactor technology for deflecting a potentially hazardous object in space.
Derek C. Richardson   +52 more
doaj   +1 more source

Asteroid Systems: Binaries, Triples, and Pairs [PDF]

open access: yes, 2015
In the past decade, the number of known binary near-Earth asteroids has more than quadrupled and the number of known large main belt asteroids with satellites has doubled.
J. Margot   +4 more
semanticscholar   +1 more source

Dynamics of the asteroid rings (10199) Chariklo

open access: yesВісник Астрономічної школи, 2016
In 2014 it was reported on opening two rings around asteroid (10199) Chariklo (Braga-Ribas F., et al., 2014, Nature, 508, 72–75) and it became the fifth object of the Solar system known to have ring system, after Jupiter, Saturn, Uranus and Neptune.
V. V. Troianskyi, O. A. Bazyey
doaj   +1 more source

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