Results 21 to 30 of about 821,143 (284)

Collisions and Gravitational Reaccumulation: Forming Asteroid Families and Satellites

Science, 2001
Numerical simulations of the collisional disruption of large asteroids show that although the parent body is totally shattered, subsequent gravitational reaccumulation leads to the formation of an entire family of large and small objects with dynamical ...
Patrick Michel, W Benz, P Tanga
exaly   +3 more sources

Multiple moonlet mergers as the origin of the Dinkinesh-Selam system [PDF]

Nature Communications
On 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, G. Madeira, H. F. Agrusa, C. C. Merrill, R. Marschall, F. Ferrari, J. Wimarsson, S. Charnoz, P. Michel, M. Jutzi   +9 more
doaj   +2 more sources

Magnetic field of planets, satellites and asteroids [PDF]

Astronomical School’s Report, 2012
Origin of magnetic field of the solar system bodies, features and structure of magnetic field of planets of terrestrial type, giant planets, Moon, galilean satellites and asteroids are considered.
A. P. Vidmachenko
openalex   +3 more sources

Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System [PDF]

The Planetary Science Journal
We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos–Dimorphos binary, which was the first small binary visited by a spacecraft.
Harrison F. Agrusa, Yun Zhang, Derek C. Richardson, Petr Pravec, Matija Ćuk, Patrick Michel, Ronald-Louis Ballouz, Seth A. Jacobson, Daniel J. Scheeres, Kevin Walsh, Olivier Barnouin, R. Terik Daly, Eric Palmer, Maurizio Pajola, Alice Lucchetti, Filippo Tusberti, Joseph V. DeMartini, Fabio Ferrari, Alex J. Meyer, Sabina D. Raducan, Paul Sánchez   +20 more
doaj   +2 more sources

EFFECT OF NON-SPHERICITY OF GRAVITATIONAL FIELD OF THE ASTEROID ON THE ITS SATELLITES ORBITS EVOLUTION

Odessa Astronomical Publications, 2016
Lately it has become possible to sufficiently precise definition of the physical and geometric characteristics of asteroid systems using radar observations (http://echo.jpl.nasa.gov/~lance/binary.neas.html), which allowed calculating the asymmetry of the
V. V. Troianskyi
doaj   +3 more sources

The diverse shapes of binary asteroid satellites born from sub-escape-velocity moonlet mergers

Context. Recent direct observations of atypically shaped rubble-pile satellites of sub-kilometre asteroids in the form of the spherically oblate Dimorphos and bilobate Selam challenge classical binary asteroid formation theories, which only explain the ...
John Wimarsson, Fabio Ferrari, Martin Jutzi   +2 more
openalex   +2 more sources

Zodiac pioneer: an interplanetary small satellite platform for asteroid reconnaissance [PDF]

One of the next priorities in ESA’s Space Safety Programme related to Planetary Defense is the implementation of class of fast rendezvous satellites to characterize potentially dangerous asteroids.
Margherita Cardi, F. Corradino, F. Ingiosi, Isabella Pappagallo, A. Morelli, Alessandra Mannocchi, Gonçalo Oliveira Pinho, C. Giordano, Iosto Fodde, Fabio Ferrari, Francesco Topputo, F. M. Cabral, A. S. Oliveira, Sebastián Moreno, Fabien Dahmani, Paolo Di Martino   +15 more
core   +4 more sources

A contact binary satellite of the asteroid (152830) Dinkinesh. [PDF]

Nature
Abstract Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O’Keefe–Radzievskii–Paddack effect) 1 to be a notable factor in their evolution 2
Levison HF, Marchi S, Noll KS, Spencer JR, Statler TS, Bell JF, Bierhaus EB, Binzel R, Bottke WF, Britt D, Brown ME, Buie MW, Christensen PR, Dello Russo N, Emery JP, Grundy WM, Hahn M, Hamilton VE, Howett C, Kaplan H, Kretke K, Lauer TR, Manzoni C, Marschall R, Martin AC, May BH, Mottola S, Olkin CB, Pätzold M, Parker JW, Porter S, Preusker F, Protopapa S, Reuter DC, Robbins SJ, Salmon J, Simon AA, Stern SA, Sunshine JM, Wong I, Weaver HA, Adam C, Ancheta S, Andrews J, Anwar S, Barnouin OS, Beasley M, Berry KE, Birath E, Bolin B, Booco M, Burns R, Campbell P, Carpenter R, Crombie K, Effertz M, Eifert E, Ellis C, Faiks P, Fischetti J, Fleming P, Francis K, Franco R, Freund S, Gallagher C, Geeraert J, Gobat C, Gorgas D, Granat C, Gray S, Haas P, Harch A, Hegedus K, Isabelle C, Jackson B, Jacob T, Jennings S, Kaufmann D, Keeney BA, Kennedy T, Lauffer K, Lessac-Chenen E, Leonard R, Levine A, Lunsford A, Martin T, McAdams J, Mehall G, Merkley T, Miller G, Montanaro M, Montgomery A, Murphy G, Myers M, Nelson DS, Ocampo A, Olds R, Pelgrift JY, Perkins T, Pineau J, Poland D, Ramanan V, Rose D, Sahr E, Short O, Solanki I, Stanbridge D, Sutter B, Talpas Z, Taylor H, Treiu B, Vermeer N, Vincent M, Wallace M, Weigle G, Wibben DR, Wiens Z, Wilson JP, Zhao Y.   +118 more
europepmc   +7 more sources

Asteroid mass estimation using Markov-chain Monte Carlo [PDF]

, 2017
Estimates for asteroid masses are based on their gravitational perturbations on the orbits of other objects such as Mars, spacecraft, or other asteroids and/or their satellites.
Granvik, Mikael, Siltala, Lauri, Lauri Siltala, Mikael Granvik   +3 more
core   +3 more sources

Equilibrium Points and Periodic Orbits of Artificial Satellite Adjacent to an Oblate and Rotating Asteroid

JIF (Jurnal Ilmu Fisika)
Asteroids have various shapes (mostly irregular) and physical characteristics. Space missions to asteroids are becoming frequent, and a global mapping scheme is applied to collect the asteroids’ physical properties. Depending on the mission purposes, the
La Fatsa Fauzia, Dermawan Budi
doaj   +3 more sources