Results 11 to 20 of about 89 (87)

Moon search algorithms for NASA's Dawn Mission to asteroid Vesta [PDF]

SPIE Proceedings, 2012
A moon or natural satellite is a celestial body that orbits a planetary body such as a planet, dwarf planet, or an asteroid. Scientists seek understanding the origin and evolution of our solar system by studying moons of these bodies. Additionally, searches for satellites of planetary bodies can be important to protect the safety of a spacecraft as it ...
Memarsadeghi, Nargess, McFadden, Lucy A., Skillman, David, McLean, Brian, Mutchler, Max, Carsenty, Uri, Palmer, Eric E., Group, the Dawn Mission's Satellite Working   +7 more
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SSOS: A Moving-Object Image Search Tool for Asteroid Precovery [PDF]

Publications of the Astronomical Society of the Pacific, 2012
It is very difficult to find archival images of solar system objects. While regular archive searches can find images at a fixed location, they cannot find images of moving targets. Archival images have become increasingly useful to galactic and stellar astronomers the last few years but, until now, solar system researchers have been at a disadvantage ...
Kavelaars, J., Hill, Norman, Gwyn, Stephen.   +2 more
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Search and study of the space debris and asteroids within ISON project [PDF]

Anais da Academia Brasileira de Ciências, 2021
International Scientific Optical Network (ISON) is an open international voluntary project specializing in observations of the near-Earth space objects. Observatories collaborating with ISON provide the global coverage and successfully combine the observations of the space debris and asteroids.
IGOR E. MOLOTOV, YURIJ N. KRUGLY, LEONID V. ELENIN, THOMAS SCHILDKNECHT, VASILIJ V. RUMYANTSEV, RAGULI YA. INASARIDZE, VOVA R. AIVAZYAN, GIVI V. KAPANADZE, LLUIS R. CANALS, FILIPPO GRAZIANI, PAOLO TEOFILATTO, SHUHRAT A. EHGAMBERDIEV, OTABEK A. BURKHONOV, EKATERINA D. CHORNAYA, ANTON V. KOCHERGIN, YEHIA A. ABDEL-AZIZ, AHMED M. ABDELAZIZ, VLADIMIR V. KOUPRIANOV, MIKHAIL V. ZAKHVATKIN, VICTOR A. STEPANYANTS, INNA V. REVA, ALEXANDER V. SEREBRYANSKIY, SERGEI E. SCHMALZ, IGOR V. NIKOLENKO   +23 more
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A photometric search for active Main Belt asteroids [PDF]

Astronomy & Astrophysics, 2014
It is well known that some Main Belt asteroids show comet-like features. A representative example is the first known Main Belt comet 133P/(7968) Elst-Pizarro. If the mechanisms causing this activity are too weak to develop visually evident comae or tails, the objects stay unnoticed. We are presenting a novel way to search for active asteroids, based on
Ortiz, J., Cikota, S., Tancredi, G., Morales, N., Cikota, A.   +4 more
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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, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

High atmospheric pressure rescues plant growth under humidity stress: A model for climate‐resilient deep underground agriculture

Deep Underground Science and Engineering, EarlyView.
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He, Linglu Xu, Xiao Tan, Wenhua Zhuang, Naiwen Li, Chao Liu, Bo Tan   +6 more
wiley   +1 more source

Earth Trojan Asteroids: A Study in Support of Observational Searches

Icarus, 2000
Observational searches for asteroids orbiting near Earth's triangular Lagrange points face unique obstacles. A population of such asteroids would occupy a large projected area on the sky (possibly hundreds of square degrees) and is not favorably placed with respect to the Sun. Here we examine the properties of synthetic populations of Earth ``Trojans''
Wiegert, Paul, Innanen, Kimmo, Mikkola, Seppo   +2 more
openaire   +2 more sources

Must Longtermists Wish Us All Dead? A Quadrilemma

Journal of Applied Philosophy, EarlyView.
ABSTRACT Longtermists assign great moral importance to making the long‐term future as good as possible, especially by ensuring the survival of humanity. We argue, to the contrary, that on assumptions that are plausible, conservative, or shared by leading longtermists, human extinction will likely augment total utility among human and non‐human animals ...
Nir Eyal, Bastian Steuwer, Shai Meiri
wiley   +1 more source

ASTEROIDS SEARCH RESULTS IN LARGE PHOTOGRAPHIC SKY SURVEYS

Odessa Astronomical Publications, 2017
Photographic observations of XX century contained numerous and varied information about all objects  and  events  of  the  Universe  fixed  on  plates.  The original and interesting observations of small bodies of the Solar  system  in  previous  years  can  be  selected  and  used for various scientific tasks.
Shatokhina, S. V., Kazantseva, L. V., Yizhakevych, O. M., Eglitis, I., Andruk, V. M.   +4 more
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Search of candidates for active asteroids among the NEA

Научные труды Института астрономии РАН, 2023
В Институте астрономии РАН с 2010 г. проводятся наблюдения околоземных объектов, получен большой архив фотометрических данных. С целью определения критериев выявления объектов для архивного поиска кометной активности у астероидов рассмотрены распределения по элементам обит и физическим характеристикам известных активных астероидов (АА).
openaire   +1 more source