Results 51 to 60 of about 122,293 (270)
The proximities of asteroids and critical points of the distance function [PDF]
Serbian Astronomical Journal, 2010 The proximities are important for different purposes, for example to evaluate the risk of collisions of asteroids or comets with the Solar-System planets.
Milisavljević Slaviša
doaj +1 more source
Celestial Bodies Far-Range Detection with Deep-Space CubeSats
Sensors, 2023 Detecting celestial bodies while in deep-space travel is a critical task for the correct execution of space missions. Major bodies such as planets are bright and therefore easy to observe, while small bodies can be faint and therefore difficult to ...
Vittorio Franzese, Francesco Topputo
doaj +1 more source
Distribution of spin-axes longitudes and shape elongations of main-belt asteroids
, 2016 Context: Large all-sky surveys provide us with a lot of photometric data that are sparse in time (typically few measurements per night) and can be potentially used for the determination of shapes and rotational states of asteroids.
Cibulková, Helena +4 more
core +1 more source
The 3-4 $\mu$m Spectra of Jupiter Trojan Asteroids [PDF]
, 2016 To date, reflectance spectra of Jupiter Trojan asteroids have revealed no distinctive absorption features. For this reason, the surface composition of these objects remains a subject of speculation. Spectra have revealed, however, that the Jupiter Trojan
Brown, Michael E.
core +2 more sources
INTERNAL STRUCTURE OF ASTEROIDS HAVING SURFACE SHEDDING DUE TO ROTATIONAL INSTABILITY [PDF]
, 2015 Surface shedding of an asteroid is a failure mode where surface materials fly off due to strong centrifugal forces beyond the critical spin period, while the internal structure does not deform significantly. This paper proposes a possible structure of an
M. Hirabayashi +2 more
semanticscholar +1 more source
Advanced Materials, EarlyView.All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen +10 more
wiley +1 more source
A Robust Synthesis of Fluorosurfactants with Tunable Functionalities via a Two‐Step Reaction
Advanced Science, EarlyView.The fluorosurfactants are synthesized through a two‐step reaction, and demonstrated excellent performance in droplet microfluidics. In addition, they exhibited tunable functionalities at the droplet interface via hydrogen bonding and coordination interactions.
Jiyuan Yao +10 more
wiley +1 more source
, 2017 V-type asteroids are a taxonomic class whose surface is associated to a basaltic composition. The only known source of V-type asteroids in the Main Asteroid Belt is (4) Vesta, that is located in the inner part of the belt.
Brasil, Pedro +3 more
core +2 more sources
DIGITAL TRACKING OBSERVATIONS CAN DISCOVER ASTEROIDS 10 TIMES FAINTER THAN CONVENTIONAL SEARCHES [PDF]
, 2015 We describe digital tracking, a method for asteroid searches that greatly increases the sensitivity of a telescope to faint unknown asteroids. It has been previously used to detect faint Kuiper Belt objects using the Hubble Space Telescope and large ...
A. Heinze, S. Metchev, Joseph Trollo
semanticscholar +1 more source
Predicting Performance of Hall Effect Ion Source Using Machine Learning
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park +8 more
wiley +1 more source