Results 11 to 20 of about 394,300 (243)

Identification and Dynamical Properties of Asteroid Families [PDF]

open access: yes, 2015
Asteroids formed in a dynamically quiescent disk but their orbits became gravitationally stirred enough by Jupiter to lead to high-speed collisions. As a result, many dozen large asteroids have been disrupted by impacts over the age of the Solar System, producing groups of fragments known as asteroid families.
Nesvorný, David   +2 more
openaire   +5 more sources

On the Title of Moriarty's 'Dynamics of an Asteroid'

open access: green, 2013
We propose an explanation of the title of Prof. James Moriarty's treatise_Dynamics of an Asteroid_, a scientific work mentioned by Sherlock Holmes in_The Valley of Fear_ and prominently featured in Guy Ritchie's 2011 film_Sherlock Holmes: A Game of Shadows_. Our views on the subject differ from those expressed in Isaac Asimov's "The Ultimate Crime".
Alejandro Jenkins
openaire   +4 more sources

The Involvement of CSRP1 in Neuroblastoma Differentiation and Apoptosis Impacting Tumor-Suppressive Therapeutic Responses. [PDF]

open access: yesFASEB J
Neuroblastoma (NB), a pediatric cancer from the neural crest, relies on differentiation for prognosis. We explored cysteine and glycine‐rich protein 1 (CSRP1) as a therapeutic target, linked to differentiation and carcinogenesis. In NB samples, CSRP1 expression correlated with differentiation.
Lin YH   +8 more
europepmc   +2 more sources

A Numerical Research on a New Type of Asteroid Flexible Probe

open access: yesIEEE Access, 2021
The asteroid landing detection is of great scientific and economic value. The traditional landing rigid probe is prone to rebound and escape due to the asteroid’s weak gravity and rugged terrain.
Weifeng Yan, Hexi Baoyin
doaj   +1 more source

Asteroids and Their Mathematical Methods

open access: yesMathematics, 2022
In this paper, the basic classification of asteroids and the history and current situation of asteroid exploration are introduced. Furthermore, some recent research progress on the orbital dynamics of asteroids, including models of the gravitational ...
Yu Jiang   +4 more
doaj   +1 more source

Symbolic dynamics in a binary asteroid system [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2020
We highlight the existence of a topological horseshoe arising from a a--priori stable model of the binary asteroid dynamics. The inspection is numerical and uses correctly aligned windows, as described in a recent paper by A. Gierzkiewicz and P. Zgliczy ski, combined with a recent analysis of an associated secular problem.
Di Ruzza, Sara   +2 more
openaire   +4 more sources

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

Characterization of the Ejecta from the NASA/DART Impact on Dimorphos: Observations and Monte Carlo Models

open access: yesThe Planetary Science Journal, 2023
The NASA Double Asteroid Redirection Test (DART) spacecraft successfully crashed on Dimorphos, the secondary component of the binary (65803) Didymos system. Following the impact, a large dust cloud was released, and a long-lasting dust tail developed. We
Fernando Moreno   +28 more
doaj   +1 more source

Dynamical evolution of the Cybele asteroids [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
The Cybele region, located between the 2J:-1A and 5J:-3A mean-motion resonances, is adjacent and exterior to the asteroid main belt. An increasing density of three-body resonances makes the region between the Cybele and Hilda populations dynamically unstable, so that the Cybele zone could be considered the last outpost of an extended main belt.
Carruba, V   +3 more
openaire   +5 more sources

The Perturbed Full Two-body Problem: Application to Post-DART Didymos

open access: yesThe Planetary Science Journal, 2023
With the successful impact of the NASA Double Asteroid Redirection Test (DART) spacecraft in the Didymos–Dimorphos binary asteroid system, we provide an initial analysis of the post-impact perturbed binary asteroid dynamics.
Alex J. Meyer   +21 more
doaj   +1 more source

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