Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation [PDF]
Scientific Reports, 2023 The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system’s protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~ 1.5 au (i.e., the disk ...
Patryk Sofia Lykawka, Takashi Ito
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Multiple moonlet mergers as the origin of the Dinkinesh-Selam system [PDF]
Nature CommunicationsOn November 1st, 2023, the Lucy spacecraft encountered the main-belt asteroid Dinkinesh, revealing the first confirmed contact binary moon, (152830) Dinkinesh I Selam.
S. D. Raducan +9 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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On the Dynamical Evolution of the Asteroid Belt in a Massive Star–Neutron Star Binary [PDF]
The Astrophysical JournalSome fast radio bursts (FRBs) exhibit repetitive behaviors, and their origins remain enigmatic. It has been argued that repeating FRBs could be produced by the interaction between a neutron star and an asteroid belt.
Chen Deng +4 more
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The Formation of Jupiter, the Jovian Early Bombardment and the Delivery of Water to the Asteroid Belt: The Case of (4) Vesta [PDF]
Life, 2014 The asteroid (4) Vesta, parent body of the Howardite-Eucrite-Diogenite meteorites, is one of the first bodies that formed, mostly from volatile-depleted material, in the Solar System. The Dawn mission recently provided evidence that hydrated material was
Diego Turrini, Vladimir Svetsov
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Origin of asteroid (101955) Bennu and its connection to the New Polana family [PDF]
Scientific ReportsThe asteroid (142) Polana is classified as a B-type asteroid located in the inner Main Belt. This asteroid is the parent of the New Polana family, which has been proposed to be the likely source of primitive near-Earth asteroids such as the B-type ...
Driss Takir +3 more
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Effect of rotational disruption on the size-frequency distribution of the Main Belt asteroid population [PDF]
, 2014 The size distribution of small asteroids in the Main Belt is assumed to be determined by an equilibrium between the creation of new bodies out of the impact debris of larger asteroids and the destruction of small asteroids by collisions with smaller ...
Davis, Donald R. +4 more
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Recent collisional history of (65803) Didymos [PDF]
Nature CommunicationsThe Double Asteroid Redirection Test (DART, NASA) spacecraft revealed that the primary of the (65803) Didymos near-Earth asteroid (NEA) binary system is not exactly the expected spinning top shape observed for other km-size asteroids.
Adriano Campo Bagatin +9 more
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Can Asteroid Belts Exist in the Luyten’s System?
Universe, 2022 The extra-solar planetary system Luyten is relatively close (12.3 light years) to our Sun. The Luyten’s red dwarf star is orbited by four planets, two of them Earth-like (in mass) and in 4:1 resonance.
Mattia Galiazzo +2 more
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The Planetary Science Journal, 2023 Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observations, the most common method is to approximate the diameter from infrared observations.
Zachary Murray
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