Results 21 to 30 of about 20,127 (260)

Perturbations Due to the Asteroid Belt [PDF]

open access: yesInternational Astronomical Union Colloquium, 1983
AbstractA new expansion for the gravitational potential of the asteroid belt is derived in this paper on the basis of binomial expansions. Its advantages are: (1)the unified form both for the inner and for the outer regions of the belt; (2)suitability for discussing the motions of the celestial bodies with perihelions within but apohelions beyond the ...
Tong Fu, Chen Zhen
openaire   +1 more source

Survey of secular resonances in the asteroid belt [PDF]

open access: yesSerbian Astronomical Journal, 2022
Using a recently introduced synthetic method to compute the asteroid secular frequencies (Knežević and Milani 2019), in this paper we survey the locations of secular resonances in the 9 dynamically distinct zones of the asteroid belt.
Knežević Z.
doaj   +1 more source

A ring as a model of the main belt in planetary ephemerides [PDF]

open access: yes, 2010
We assess the ability of a solid ring to model a global perturbation induced by several thousands of main-belt asteroids. The ring is first studied in an analytical framework that provides an estimate of all the ring's parameters excepting mass.
A. Fienga   +12 more
core   +3 more sources

Organic matter and water from asteroid Itokawa

open access: yesScientific Reports, 2021
Understanding the true nature of extra-terrestrial water and organic matter that were present at the birth of our solar system, and their subsequent evolution, necessitates the study of pristine astromaterials.
Q. H. S. Chan   +11 more
doaj   +1 more source

The collisional evolution of undifferentiated asteroids and the formation of chondritic meteoroids [PDF]

open access: yes, 2016
Most meteorites are fragments from recent collisions experienced in the asteroid belt. In such a hyper-velocity collision, the smaller collision partner is destroyed, whereas a crater on the asteroid is formed or it is entirely disrupted, too.
Beitz, Eike   +3 more
core   +2 more sources

CASTAway: An asteroid main belt tour and survey [PDF]

open access: yesAdvances in Space Research, 2018
CASTAway is a mission concept to explore our Solar System's main asteroid belt. Asteroids and comets provide a window into the formation and evolution of our Solar System and the composition of these objects can be inferred from space-based remote sensing using spectroscopic techniques.
Bowles, N.E.   +44 more
openaire   +12 more sources

Ryugu’s Anhydrous Ingredients and Their Spectral Link to Primitive Dust from the Outer Solar System

open access: yesThe Astrophysical Journal Letters, 2023
Ryugu is a second-generation C-type asteroid formed by the reassembly of fragments of a previous larger body in the main asteroid belt. While the majority of Ryugu samples returned by Hayabusa2 are composed of a lithology dominated by aqueously altered ...
R. Brunetto   +39 more
doaj   +1 more source

Multicolor Photometry of Tiny Near-Earth Asteroid 2015 RN35 across a Wide Range of Phase Angles: Possible Mission-accessible A-type Asteroid

open access: yesThe Astronomical Journal, 2023
Studying small near-Earth asteroids is important in order to understand their dynamical histories and origins as well as to mitigate the damage caused by asteroid impacts on Earth.
Jin Beniyama   +12 more
doaj   +1 more source

The origin of planetary impactors in the inner solar system [PDF]

open access: yes, 2005
New insights into the history of the inner solar system are derived from the impact cratering record of the Moon, Mars, Venus and Mercury, and from the size distributions of asteroid populations. Old craters from a unique period of heavy bombardment that
Ito, Takashi   +4 more
core   +3 more sources

ACCURACY OF MYKOLAIV ASTEROID OBSERVATIONS WITH DIFFERENT REFERENCE CATALOGUES

open access: yesOdessa Astronomical Publications, 2017
The  results  of  astrometric  reductions  of main belt asteroid observations  with  usage of 3 different reference  catalogues  are  presented.  The  high  precision catalogs CMC15, UCAC4 and GAIA DR1 were used as reference  catalogues  for  calculation 
N. V. Maigurova   +3 more
doaj   +1 more source

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