Results 21 to 30 of about 486,437 (201)
On the secondary’s rotation in a synchronous binary asteroid [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT This article studies the secondary’s rotation in a synchronous binary asteroid system in which the secondary enters the 1:1 spin-orbit resonance. The model used is the planar full two-body problem, composed of a spherical primary plus a triaxial ellipsoid secondary.
X Y Hou, H S Wang
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A smart cloud approach to asteroid deflection [PDF]
, 2011 This paper presents a novel idea for the successful deflection of asteroids. Adapted initially from the kinematic impactor approach, this new concept – Smart Cloud – combines the relative benefits of the ion beam shepard in providing a large cloud of ...
Vasile, Massimiliano, Gibbings, Alison
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Thermophysical Investigation of Asteroid Surfaces. II. Factors Influencing Grain Size
The Planetary Science Journal, 2022 Asteroid surfaces are subjected to mechanical weathering processes that result in the development and evolution of regolith. Two proposed mechanisms—impact bombardment and thermal fatigue—have been proposed as viable and dominant weathering processes ...
Eric M. MacLennan, Joshua P. Emery
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Frontiers in Astronomy and Space Sciences, 2022 The authors explore the possibility that near-earth, rubble pile asteroids might be used as habitats for human settlement by increasing their rotation to produce spin gravity. Using previously published scaling by Maindl et al.
Peter M. Miklavčič +6 more
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The physical and dynamical characteristics of the asteroid 4940 Polenov [PDF]
Serbian Astronomical Journal, 2021 The asteroid (1986 QY4) 4940 Polenov is the first Solar system object whose 3D shape is determined using the observations from the newly built Astronomical Station Vidojevica (ASV).
Vchkova-Bebekovska E. +5 more
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Formation of asteroid pairs by rotational fission [PDF]
Nature, 2010 12 pages, 2 figures, 1 table + Supplementary ...
Pravec, Petr +25 more
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Semi-analytical Ansatz for Approximating Dynamics of Asteroid Rotation Approaching Planet [PDF]
Journal of Applied and Computational MechanicsThe main motivation of this research is the analytical exploration of the dynamics of asteroid rotation approaching planet, in view of future approach Apophis 2029 to Earth.
Sergey Ershkov
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No Place to Hide? Regional Resilience and Vulnerability to Global Catastrophic Risk. [PDF]
Glob ChallNo location on Earth withstands every global catastrophe. This review maps the geographic, institutional and infrastructural factors shaping resilience to nuclear, volcanic and impact winters, infrastructure loss and pandemics. Geographic isolation, food self‐sufficiency, strong governance and decentralization improve resilience across scenarios ...
Jehn FU +7 more
europepmc +2 more sources
On the rotation of cometary nuclei and small asteroids [PDF]
International Astronomical Union Colloquium, 1985 AbstractThe spin rate distributions of comet nuclei and small asteroids are compared, and it is shown that Whipple’s (1982) finding of a faster average rotation for the asteroid sample was due to observational biases. In fact, the presently available rotational data do not exhibit any clear differentiation among comet nuclei and asteroids, except ...
P. Farinella, P. Paolicchi, V. Zappalà
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The Astronomical Journal, 2023 We present photometric data for minor planets observed by the Transiting Exoplanet Survey Satellite during its Cycle 1 operations. In total, we extracted usable detections for 37,965 objects.
Andrew McNeill +5 more
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