Machine learning techniques for classifying dangerous asteroids [PDF]
MethodsX, 2023 There is an infinite number of objects in outer space, and these objects and asteroids might be harmful. Hence, it is wise to know what is surrounding us and what can harm us amongst those.Therefore, in this article, with the hyperparameters tuning of ...
Seyed Matin Malakouti +2 more
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Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles [PDF]
Nature CommunicationsRubble pile asteroids are widely understood to be composed of reaccumulated debris following a catastrophic collision between asteroids in the main asteroid belt, where each disruption can make a family of new asteroids.
K. J. Walsh +14 more
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Collisional model of asteroids and their debris [PDF]
, 1969 A model for colliding objects in the asteroidal belt is formulated. An integro-differential equation describing the evolution of a system of particles undergoing inelastic collisions and fragmentation is derived and solved for steady-state conditions. It
J. S. Dohnanyi
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Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids [PDF]
Science, 2020 Ammonium salts on comet 67P The distribution of carbon and nitrogen in the Solar System is thought to reflect the stability of carbon- and nitrogen-bearing molecules when exposed to the heat of the forming Sun. Comets have a low nitrogen-to-carbon ratio,
O. Poch +31 more
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Necessary condition for temporary asteroid capture
Open Astronomy, 2023 Asteroid capture holds great significance in understanding the origins of asteroids, the source of life, and the exploration of planetary mineral resources.
Bao Changchun, Li Zhijie, Wang Xianyu
doaj +1 more source
Annual Review of Astronomy and Astrophysics, 2018 The moniker rubble pile is typically applied to all Solar System bodies >200 m and
K. Walsh
semanticscholar +1 more source
Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu
Nature Communications, 2020 Asteroid shapes and hydration levels can serve as tracers of their history and origin. For instance, the asteroids (162173) Ryugu and (101955) Bennu have an oblate spheroidal shape with a pronounced equator, but contain different surface hydration levels.
P. Michel +16 more
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Migration of D-type asteroids from the outer Solar System inferred from carbonate in meteorites [PDF]
Nature Astronomy, 2019 Recent dynamical models of Solar System evolution and isotope studies of rock-forming elements in meteorites have suggested that volatile-rich asteroids formed in the outer Solar System beyond Jupiter’s orbit, despite being currently located in the main ...
W. Fujiya +8 more
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Growth of asteroids, planetary embryos, and Kuiper belt objects by chondrule accretion [PDF]
Science Advances, 2015 Chondrules, tiny spheres found in primitive meteorites, accumulate through gas drag to form asteroids and planetary embryos. Chondrules are millimeter-sized spherules that dominate primitive meteorites (chondrites) originating from the asteroid belt. The
A. Johansen +3 more
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The common origin of family and non-family asteroids [PDF]
Nature Astronomy, 2018 All asteroids are currently classified as either family, originating from the disruption of known bodies1, or non-family. An outstanding question is the origin of these non-family asteroids.
S. Dermott +5 more
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