Results 41 to 50 of about 399,303 (277)
The Planetary Science JournalWe report the discovery and careful orbital determination of 64 new irregular moons of Saturn found in images taken using the Canada–France–Hawaii Telescope from 2019 to 2021, bringing the total number of Saturnian irregulars to 122.
Edward Ashton +3 more
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Vestnik MGTU, 2018 Results of observations of variations of temperature, electron concentration and total electron content of the high-latitude region of the ionosphere during its modification by powerful short radio waves of the heating complex EISCAT/Heating (Tromsø ...
Tereshchenko E. D. +4 more
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The Abundant Irregular Satellites of the Giant Planets [PDF]
Highlights of Astronomy, 2005 AbstractIrregular satellites have eccentric orbits that can be highly inclined or even retrograde relative to the equatorial planes of their planets. These objects cannot have formed by circumplanetary accretion as did the regular satellites which follow un-inclined, nearly circular, pro-grade orbits.
Scott S. Sheppard, David C. Jewitt
openaire +1 more source
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Improving the Prediction of GNSS Satellite Visibility in Urban Canyons Based on a Graph Transformer
NavigationSignals from global navigation satellite systems (GNSSs) in urban areas suffer from serious multipath errors caused by building blockages and reflections.
Shaolong Zheng +6 more
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LIGHT POLLUTION IN LEO-SATELLITE TRACKING
Odessa Astronomical Publications, 2016 Because of the high level of the light pollution in Odessa city, only the observations of LEO (low Earth orbit)-satellites are performed in the main office of the Astronomical observatory of Odessa National University named after I.I. Mechnikov.
L. S. Shakun +5 more
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Frontiers in Remote Sensing, 2022 This paper investigates the backscatter evolution and surface changes of ice aprons (IAs) by exploiting time series of X- and C-band SAR images from PAZ and Sentinel-1 satellites.
Suvrat Kaushik +8 more
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Irregular Satellites of the Planets: Capture Processes in the Early Solar System [PDF]
, 2020 All four giant planets in the Solar system possess irregular satellites, characterized by large, highly eccentric and/or inclined orbits that are distinct from the nearly circular, uninclined orbits followed by the regular satellites. This difference can
David Jewitt, Nader Haghighipour
core
Advanced Engineering Materials, EarlyView.This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig +2 more
wiley +1 more source
New Moons of Uranus and Neptune from Ultradeep Pencil-beam Surveys
The Astronomical JournalWe have conducted extremely ultradeep pencil-beam observations for new satellites around both Uranus and Neptune. Tens of images on several different nights in 2021, 2022, and 2023 were obtained, shifted, and added together to reach as faint as 26.9 and ...
Scott S. Sheppard +6 more
doaj +1 more source