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. In the case of asteroid-asteroid perturbations, this leads to an inverse problem in at least 13 dimensions where the aim is to derive the mass of the perturbing asteroid(s) and
arxiv +1 more source
Heavy‐Atom‐Induced Narrow Emission in Chalcogen‐Coordinating Lanthanide Cerium(III) Complexes
Aggregate, EarlyView.A novel heavy‐atom‐induced narrow emission is observed in luminescent Ce(III) complexes by adopting imidodiphosphinate ligand with different chalcogen‐coordinating sites such as O, S, Se, and Te. In the heaviest Te‐coordinating complex, the full width at half maxima is only 42 nm, which is the narrowest emission band of Ce(III).
Jiayin Zheng +9 more
wiley +1 more source
Near-Earth Asteroids as Possible Parent Bodies of Meteor Streams [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The genetic relationship of meteor streams with near-Earth asteroids (NEAs) is being actively studied. A genetic link with the asteroid is possible only for streams in which meteoroids have the geocentric speed smaller than 50 km/s, thereby meaning the ...
M.G. Sokolova, M.V. Sergienko
doaj
Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions
Advanced Intelligent Systems, EarlyView.Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley +1 more source
Carbon Speciation and Solubility in Silicate Melts
Geophysical Monograph Series, Page 179-194., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Natalia Solomatova +2 more
wiley
The Career Development Quarterly, EarlyView.Abstract This study investigated how avoidance motivation, which entails a fear of failure and focus on avoiding negative outcomes, influences adolescents’ aspirations toward scientific research careers. Participants consisted of 245 high school students participating in a summer science enrichment program. Results of a hierarchical regression analysis
Eric D. Deemer +3 more
wiley +1 more source
Close encounters of Near Earth Objects with large asteroids [PDF]
, 2014 Close encounters of Near Earth Objects (NEOs) with large asteroids are a possible source of systematic errors in trajectory propagations and asteroid mitigation. It is, thus, necessary to identify those large asteroids that have to be considered as perturbers in NEO orbit modeling.
arxiv +1 more source
Main belt asteroids taxonomical information from Dark Energy Survey data [PDF]
arXiv, 2023 While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many asteroids still lack even a basic taxonomy.
arxiv
Chemistry – A European Journal, Accepted Article.Short amyloidogenic oligopeptides (APRs) are proposed as early macromolecules capable of forming solvent‐separated nanosystems under prebiotic conditions. This study provides experimental evidence that APRs, such as the aggregation‐prone oligopeptide A (APR‐A), can undergo mutational transitions to form distinct variants, and convert to APR‐B, either ...
Fruzsina Bencs +7 more
wiley +1 more source
Identification and Dynamical Properties of Asteroid Families [PDF]
, 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.
arxiv +1 more source