Results 11 to 20 of about 1,188,616 (233)
The dynamics of asteroid rotation, governed by YORP effect: the kinematic ansatz [PDF]
Acta Astronautica, 2018 The main motivation of this research is the analytical exploration of the dynamics of asteroid rotation when it moves in elliptic orbit through Space.
Ershkov, Sergey V., Shamin, Roman V.
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On the dynamics OF NON-RIGID asteroid rotation [PDF]
Acta Astronautica, 2019 We have presented in this communication a new solving procedure for the dynamics of non-rigid asteroid rotation, considering the final spin state of rotation for a small celestial body (asteroid).
S. Ershkov, D. Leshchenko
semanticscholar +3 more sources
Mathematics, 2023 We have considered here a novel particular model for dynamics of a non-rigid asteroid rotation, assuming the added mass model instead of the concept of Viscoelastic Oblate Rotators to describe the physically reasonable response of a ‘rubble pile ...
Sergey Ershkov, Dmytro Leshchenko
doaj +2 more sources
313 new asteroid rotation periods from Palomar Transient Factory observations [PDF]
, 2014 A new asteroid rotation period survey have been carried out by using the Palomar Transient Factory (PTF). Twelve consecutive PTF fields, which covered an area of 87 deg$^2$ in the ecliptic plane, were observed in $R$ band with a cadence of $\sim$20 min ...
Chang, Chan-Kao +13 more
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The Alinement of Asteroid Rotation [PDF]
International Astronomical Union Colloquium, 1971 Data have been accumulating since the beginning of this century that indicate that most, if not all, large asteroids have periodic lightcurves. The variations that are seen have periods of the order of several hours and can be understood as being caused by bodily rotation, accompanied by changes in shape and/or surface properties. Because corresponding
J. Burns
semanticscholar +2 more sources
Asteroid lightcurves from the Palomar Transient Factory survey: Rotation periods and phase functions from sparse photometry [PDF]
, 2015 We fit 54,296 sparsely-sampled asteroid lightcurves in the Palomar Transient Factory to a combined rotation plus phase-function model. Each lightcurve consists of 20+ observations acquired in a single opposition.
Chang, Chan-Kao +12 more
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Asteroid rotation excitation by subcatastrophic impacts [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 Photometric observations of asteroids show that some of them are in non-principal axis rotation state (free precession), called tumbling. Collisions between asteroids have been proposed as a possible asteroid rotation excitation mechanism.
T. Henych, T. Henych, P. Pravec
semanticscholar +4 more sources
Asteroid Photometric Phase Functions From Bayesian Lightcurve Inversion
Frontiers in Astronomy and Space Sciences, 2022 Photometry is an important tool for characterizing the physical properties of asteroids. An asteroid’s photometric lightcurve and phase curve refer to the variation of the asteroid’s disk-integrated brightness in time and in phase angle (the Sun-asteroid-
Karri Muinonen +7 more
doaj +2 more sources
The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4
The Astrophysical Journal LettersWe describe observations and physical characteristics of Earth-crossing asteroid 2024 YR _4 , discovered on 2024 December 27 by the Asteroid Terrestrial-impact Last Alert System.
Bryce T. Bolin +11 more
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Asteroid rotation and orbit control via laser ablation
Advances in Space Research, 2016 M. Vetrisano, C. Colombo, M. Vasile
semanticscholar +3 more sources