Results 51 to 60 of about 22,935 (221)
Astronomy & AstrophysicsContext. One of the main bottlenecks in assessing the accuracy of the Mars orbit is the unknown value of the asteroids in the main asteroid belt. A modeling with 343 asteroids as point masses is used today, with the relative masses fit to observational ...
Mariani Vincenzo +4 more
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Analysis of the equilibrium points and orbits stability for the asteroid 93 Minerva
Open Astronomy, 2022 In this article, we study the orbital dynamics with the gravitational potential of the asteroid 93 Minerva using an irregular shape model from observations.
Liu Hu +10 more
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Journal of Graph Theory, EarlyView.ABSTRACT A 2‐edge‐coloured graph G $G$ is called locally complete if for each vertex v $v$, the vertices adjacent to v $v$ through edges of the same colour induce a complete subgraph in G $G$. Locally complete 2‐edge‐coloured graphs have nice properties, and there exists a polynomial algorithm to decide whether such a graph has an alternating ...
Jørgen Bang‐Jensen, Jing Huang
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The Planetary Science JournalPrimitive asteroids with low albedos and red slopes in the visible and near-infrared (VNIR) are found in both the main belt and the Jupiter Trojan clouds.
Oriel A. Humes +3 more
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Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method
Journal of Astronomy and Space Sciences, 2020 This paper presents a methodology for Initial Orbit Determination (IOD) based on a modification of the Laplace’s geocentric method. The orbital elements for Near-Earth asteroids (1864) Daedalus, 2003 GW, 2019 JA8, a Hungaria-type asteroid (4690 ...
Daniela Espitia +2 more
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The Biological Bulletin, 1975 1. Intraspecific agonistic behavior, called bouts, which involves ray interactions between individual sea stars, is reported in species from all three living orders of asteroids and described for Patiria miniata and Pycnopodia helianthoides. This behavior indicates a certain sensitivity to conspecific contact on the aboral surface, in which each ...
openaire +3 more sources
Asteroid Family Associations of Active Asteroids [PDF]
The Astronomical Journal, 2018 Abstract We report on the results of a systematic search for associated asteroid families for all active asteroids known to date. We find that 10 out of 12 main-belt comets (MBCs) and five out of seven disrupted asteroids are linked with known or candidate families, rates that have ∼0.1% and ∼6% probabilities, respectively, of occurring ...
Henry H. Hsieh +3 more
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Opportunities for asteroid retrieval missions [PDF]
, 2013 Asteroids and comets are of strategic importance for science in an effort to uncover the formation, evolution and composition of the Solar System. Near-Earth Objects (NEOs) are of particular interest because of their accessibility from Earth, but also ...
Daniel García Yárnoz +7 more
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Method‐dependent differences in zooplankton abundance and size metrics: Microscopy vs. ZooScan
Limnology and Oceanography: Methods, EarlyView.Abstract Image‐based approaches such as ZooScan are increasingly used for high‐throughput zooplankton monitoring. However, quantitative evaluations of methodological differences relative to conventional microscopy remain limited. In this study, zooplankton abundance and size‐based metrics obtained from microscopy and ZooScan image analysis were ...
Young Seok Jeong +4 more
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Biomimetic robots driven by smart materials: Motion forms, stimulation methods and applications
Responsive Materials, EarlyView.Biomimetic robots enhance adaptability by mimicking biological systems, but rigid materials limit performance. Smart materials with stimuli responsiveness and shape adaptability enable more flexible actuation and improved environmental interaction.
Zeyu Yang +8 more
wiley +1 more source